{"id":3506,"date":"2026-07-14T09:00:00","date_gmt":"2026-07-14T01:00:00","guid":{"rendered":"https:\/\/eqsvq3fzct.wpdns.site\/blog\/choosing-acb-circuit-breaker-for-industrial-needs\/"},"modified":"2026-10-20T10:49:26","modified_gmt":"2026-10-20T02:49:26","slug":"%d8%a7%d9%86%d8%aa%d8%ae%d8%a7%d8%a8-%d9%82%d8%b7%d8%b9-%da%a9%d9%86%d9%86%d8%af%d9%87-%d9%85%d8%af%d8%a7%d8%b1-acb-%d8%a8%d8%b1%d8%a7%db%8c-%d9%86%db%8c%d8%a7%d8%b2%d9%87%d8%a7%db%8c-%d8%b5%d9%86","status":"publish","type":"post","link":"https:\/\/w9-group.com\/fa\/blog\/choosing-acb-circuit-breaker-for-industrial-needs\/","title":{"rendered":"\u0686\u06af\u0648\u0646\u0647 \u06cc\u06a9 \u0642\u0637\u0639 \u06a9\u0646\u0646\u062f\u0647 \u0645\u062f\u0627\u0631 ACB \u0631\u0627 \u0628\u0631\u0627\u06cc \u0646\u06cc\u0627\u0632\u0647\u0627\u06cc \u0635\u0646\u0639\u062a\u06cc \u0627\u0646\u062a\u062e\u0627\u0628 \u06a9\u0646\u06cc\u0645"},"content":{"rendered":"
\n

An industrial main breaker is part of the switchboard’s operating plan as well as its protection system. A quote that states only current and voltage leaves unanswered how faults are cleared, how maintenance is performed and whether a replacement unit fits the existing assembly. Resolve these questions before freezing the ACB schedule.<\/p>\n

Summary: Choose an ACB circuit breaker by starting with system voltage, continuous load, prospective \u0634\u0627\u0631\u0698 \u062c\u0631\u06cc\u0627\u0646 \u06a9\u0648\u062a\u0627\u0647<\/strong> and the required selectivity study\u2014not by frame size alone. IEC 60947-2 addresses low-voltage circuit-breaker performance, while UL 1066 covers low-voltage AC power circuit breakers used in North American practice; the applicable standard changes the evidence your supplier must provide. Build a written schedule for frame and trip ratings, fixed or withdrawable construction, protection functions, environment and maintenance, then verify the complete assembly before purchase.<\/p>\n

ACB Electrical Duty Requirements<\/h2>\n

\u06cc\u06a9 \u0642\u0637\u0639 \u06a9\u0646\u0646\u062f\u0647 \u0645\u062f\u0627\u0631 ACB \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u062f\u0633\u062a\u06af\u0627\u0647 \u062d\u0641\u0627\u0638\u062a\u06cc \u0627\u0635\u0644\u06cc \u06cc\u0627 \u0645\u0646\u0628\u0639 \u062a\u063a\u0630\u06cc\u0647 \u062f\u0631 \u06cc\u06a9 \u0645\u062c\u0645\u0648\u0639\u0647 \u0648\u0644\u062a\u0627\u0698 \u067e\u0627\u06cc\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u062f\u0631 \u0622\u0646 \u062c\u0631\u06cc\u0627\u0646 \u0628\u0627\u0644\u0627\u060c \u0633\u0648\u0626\u06cc\u0686\u200c\u0647\u0627\u06cc \u0645\u06a9\u0631\u0631 \u06cc\u0627 \u062f\u0633\u062a\u0631\u0633\u06cc \u0633\u0631\u0648\u06cc\u0633 \u0628\u0627\u0639\u062b \u0645\u06cc\u200c\u0634\u0648\u062f \u06a9\u0647 \u06cc\u06a9 \u062f\u0633\u062a\u06af\u0627\u0647 \u0628\u0627 \u0628\u062f\u0646\u0647 \u0642\u0627\u0644\u0628 \u0645\u0646\u0627\u0633\u0628 \u0646\u0628\u0627\u0634\u062f. \u062f\u0631 \u0627\u06cc\u0646 \u0646\u0642\u0634\u060c \u0642\u0637\u0639 \u06a9\u0646\u0646\u062f\u0647 \u0645\u062f\u0627\u0631 \u0635\u0646\u0639\u062a\u06cc \u0628\u062e\u0634\u06cc \u0627\u0632 \u0627\u0633\u062a\u0631\u0627\u062a\u0698\u06cc \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc \u06a9\u0627\u0631\u062e\u0627\u0646\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f\u060c \u0646\u0647 \u0641\u0642\u0637 \u06cc\u06a9 \u0633\u0631\u06cc \u06a9\u0627\u062a\u0627\u0644\u0648\u06af. \u0648\u0644\u062a\u0627\u0698\u060c \u0641\u0631\u06a9\u0627\u0646\u0633\u060c \u062a\u0631\u062a\u06cc\u0628 \u0641\u0627\u0632 \u0648 \u0631\u0648\u0634 \u0632\u0645\u06cc\u0646\u06cc\u200c\u06a9\u0631\u062f\u0646 \u0633\u06cc\u0633\u062a\u0645 \u0631\u0627 \u062a\u0623\u06cc\u06cc\u062f \u06a9\u0646\u06cc\u062f. \u0633\u067e\u0633 \u062c\u0631\u06cc\u0627\u0646 \u0637\u0631\u0627\u062d\u06cc \u0631\u0627 \u0628\u0631 \u0627\u0633\u0627\u0633 \u0645\u0634\u062e\u0635\u0627\u062a \u0641\u0639\u0644\u06cc \u0628\u0627\u0631\u060c \u0627\u0632 \u062c\u0645\u0644\u0647 \u0645\u0648\u062a\u0648\u0631\u0647\u0627\u060c \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631\u0647\u0627\u060c \u0645\u062d\u0631\u06a9\u200c\u0647\u0627\u060c \u0634\u0648\u0641\u0627\u0698\u200c\u0647\u0627 \u0648 \u062a\u0648\u0633\u0639\u0647\u200c\u0647\u0627\u06cc \u0622\u06cc\u0646\u062f\u0647\u060c \u0645\u062d\u0627\u0633\u0628\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n

\u0633\u0647 \u0631\u062a\u0628\u0647 \u0631\u0627 \u062f\u0631 \u0628\u0631\u0646\u0627\u0645\u0647 \u062e\u0648\u062f \u062c\u062f\u0627 \u06a9\u0646\u06cc\u062f: \u0631\u062a\u0628\u0647\u0654 \u0641\u0631\u06cc\u0645 (\u0631\u062a\u0628\u0647\u0654 \u0641\u0639\u0644\u06cc \u0641\u06cc\u0632\u06cc\u06a9\u06cc)\u060c \u0631\u062a\u0628\u0647\u0654 \u0648\u0627\u062d\u062f\u0654 \u067e\u0631\u0648\u0627\u0632\u06cc \u06cc\u0627 \u0633\u0646\u0633\u0648\u0631 (\u0628\u0646\u06cc\u0627\u062f \u0641\u0639\u0644\u06cc \u062d\u0641\u0627\u0638\u062a)\u060c \u0648 \u062a\u0646\u0638\u06cc\u0645 \u0637\u0648\u0644\u0627\u0646\u06cc\u200c\u0645\u062f\u062a\u0654 \u062f\u0631\u06cc\u0627\u0641\u062a (\u062d\u062f \u0627\u0644\u0639\u0645\u0644\u0647\u200c\u0654 \u0627\u0646\u062a\u062e\u0627\u0628\u06cc). \u06cc\u06a9 \u0641\u0631\u06cc\u0645 \u0628\u0632\u0631\u06af \u0628\u0647 \u0637\u0648\u0631 \u062e\u0648\u062f\u06a9\u0627\u0631 \u0638\u0631\u0641\u06cc\u062a \u0642\u0627\u0628\u0644\u200c\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0628\u06cc\u0634\u062a\u0631\u06cc \u0631\u0627 \u0641\u0631\u0627\u0647\u0645 \u0646\u0645\u06cc\u200c\u06a9\u0646\u062f\u061b \u062a\u0646\u0638\u06cc\u0645 \u0628\u06cc\u0634 \u0627\u0632 \u062d\u062f \u0628\u0627\u0644\u0627\u0654 \u0648\u0627\u062d\u062f\u0654 \u067e\u0631\u0648\u0627\u0632\u06cc \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0639\u0627\u06cc\u0628\u0627\u0646 \u0631\u0627 \u0628\u062f\u0648\u0646 \u0645\u062d\u0627\u0641\u0638 \u0646\u06af\u0647 \u062f\u0627\u0631\u062f\u060c \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u062a\u0646\u0638\u06cc\u0645 \u0628\u06cc\u0634 \u0627\u0632 \u062d\u062f \u067e\u0627\u06cc\u06cc\u0646 \u0622\u0646 \u0628\u0627\u0639\u062b \u0639\u0645\u0644\u06a9\u0631\u062f \u0645\u0632\u0627\u062d\u0645\u0627\u062a\u06cc \u0645\u06cc\u200c\u0634\u0648\u062f. \u0627\u0632 \u062a\u0648\u0644\u06cc\u062f\u06a9\u0646\u0646\u062f\u0647\u0654 \u0645\u0646\u062d\u0646\u06cc\u200c\u0647\u0627\u06cc \u0632\u0645\u0627\u0646-\u0641\u0639\u0627\u0644\u06cc\u062a \u062c\u0631\u06cc\u0627\u0646 \u0648 \u06af\u0632\u06cc\u0646\u0647\u200c\u0647\u0627\u06cc \u062f\u0642\u06cc\u0642\u0654 \u0633\u0646\u0633\u0648\u0631 \u0648 \u0648\u0627\u062d\u062f\u0654 \u067e\u0631\u0648\u0627\u0632\u06cc \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u06a9\u0646\u06cc\u062f.<\/p>\n

Short-circuit duty is equally important. Obtain the calculated \u0645\u0648\u062c \u0628\u0631\u0642 \u0628\u0627\u0644\u0642\u0648\u0647<\/strong> at the installation point and compare it with the breaker\u2019s interrupting rating and short-time withstand rating at the stated voltage. If the design relies on a downstream device clearing a fault after a short delay, the ACB must withstand that current for the specified duration. Do not substitute a headline interrupting number for a coordinated withstand check.<\/p>\n

Short-Time Withstand Duration<\/h3>\n

Icw is a short-time withstand rating with a specified duration; it is not an interrupting capacity. If the protection design intentionally delays an upstream ACB, compare the duty during that delay with both breaker and assembly withstand. Check any instantaneous override or other restriction in the exact trip-unit documentation. A coordination drawing that ignores a mandatory override can overstate selectivity.<\/p>\n

\n\"Existing
Existing W9 ACB article illustration.<\/figcaption><\/figure>\n

ACB Construction Requirements<\/h2>\n

A fixed ACB remains installed in its mounting arrangement, while a withdrawable model<\/a> uses a compatible cradle with declared connected, test and disconnected positions. The exact position functions must be confirmed from the instructions. Withdrawal can support a planned maintenance or spare strategy; it does not make the entire compartment de-energized or authorize work on live equipment. Record the isolation and racking procedures before selecting this format.<\/p>\n

\u062f\u0631 \u0632\u0645\u0627\u0646 \u0628\u0631\u0631\u0633\u06cc \u0637\u0631\u0627\u062d\u06cc \u0627\u0632 \u0645\u0642\u0627\u06cc\u0633\u0647 \u0632\u06cc\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f:<\/p>\n\n\n\n\n\n\n\n\n
\u0627\u0628\u0639\u0627\u062f \u062a\u0635\u0645\u06cc\u0645<\/th>\n\u0633\u0627\u062e\u062a \u0648 \u0633\u0627\u0632 \u062b\u0627\u0628\u062a<\/th>\n\u0633\u0627\u062e\u062a \u0648 \u0633\u0627\u0632 \u0642\u0627\u0628\u0644 \u0628\u0631\u062f\u0627\u0634\u062a<\/th>\n\u0628\u0647\u062a\u0631\u06cc\u0646 \u062a\u0646\u0627\u0633\u0628<\/th>\n<\/tr>\n<\/thead>\n
\u0627\u062a\u0635\u0627\u0644 \u0627\u0648\u0644\u06cc\u0647<\/td>\n\u06a9\u0645\u062a\u0631 \u0628\u0648\u062f\u0646 \u0642\u0637\u0639\u0627\u062a \u0645\u06a9\u0627\u0646\u06cc\u06a9\u06cc\u061b \u0637\u0631\u0627\u062d\u06cc \u0633\u0627\u062f\u0647\u062a\u0631 \u067e\u0627\u0646\u0644<\/td>\n\u0628\u0647 cradle\u060c \u0646\u0634\u0627\u0646\u200c\u062f\u0647\u0646\u062f\u0647 \u0645\u0648\u0642\u0639\u06cc\u062a \u0648 \u0633\u06cc\u0633\u062a\u0645\u200c\u0647\u0627\u06cc \u0642\u0641\u0644 \u0627\u062d\u062a\u06cc\u0627\u062c \u062f\u0627\u0631\u062f<\/td>\n\u0628\u0631\u0627\u06cc \u0628\u0631\u062f\u0647\u0627\u06cc \u0628\u0627 \u0645\u062d\u062f\u0648\u062f\u06cc\u062a\u0647\u0627\u06cc \u0641\u0636\u0627\u060c \u062b\u0627\u0628\u062a \u0634\u062f\u0647 \u0627\u0633\u062a<\/td>\n<\/tr>\n
\u062f\u0633\u062a\u0631\u0633\u06cc \u0628\u0647 \u062a\u0639\u0645\u06cc\u0631 \u0648 \u0646\u06af\u0647\u062f\u0627\u0631\u06cc<\/td>\n\u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0646\u06cc\u0627\u0632 \u0628\u0647 \u0627\u0646\u0632\u0648\u0627 \u0648 \u062c\u062f\u0627 \u0634\u062f\u0646 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f<\/td>\n\u0645\u062d\u0644 \u06a9\u0627\u0631 \u0622\u0632\u0645\u0627\u06cc\u0634\u06cc \u06cc\u0627 \u062e\u062f\u0645\u0627\u062a\u06cc\u060c \u06a9\u0627\u0631 \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0628\u0646\u062f\u06cc \u0634\u062f\u0647 \u0631\u0627 \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u0645\u06cc\u200c\u06a9\u0646\u062f<\/td>\n\u0642\u0627\u0628\u0644 \u0628\u0631\u062f\u0627\u0634\u062a \u0628\u0631\u0627\u06cc \u062a\u0623\u0633\u06cc\u0633\u0627\u062a \u0628\u062d\u0631\u0627\u0646\u06cc \u06cc\u0627 \u0645\u0633\u062a\u0645\u0631<\/td>\n<\/tr>\n
\u0627\u0633\u062a\u0631\u0627\u062a\u0698\u06cc \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646<\/td>\n\u062a\u0639\u0648\u06cc\u0636 \u062f\u0633\u062a\u06af\u0627\u0647 \u062e\u0627\u0635 \u0627\u0633\u062a<\/td>\n\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u06cc\u06a9 \u0642\u0637\u0639\u0647 \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u0633\u0627\u0632\u06af\u0627\u0631 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0645\u062f\u062a \u0632\u0645\u0627\u0646 \u0642\u0637\u0639\u06cc \u0634\u062f\u0646 \u0633\u0631\u0648\u06cc\u0633 \u0631\u0627 \u06a9\u0627\u0647\u0634 \u062f\u0647\u062f.<\/td>\n\u06a9\u0647 \u062f\u0631 \u0622\u0646 \u062f\u0631 \u0635\u0648\u0631\u062a \u0627\u0641\u062a \u0639\u0645\u0644\u06a9\u0631\u062f\u060c \u062a\u0623\u062b\u06cc\u0631 \u0632\u06cc\u0627\u062f\u06cc \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f\u060c \u0642\u0627\u0628\u0644 \u0628\u0631\u062f\u0627\u0634\u062a \u0627\u0633\u062a<\/td>\n<\/tr>\n
\u06a9\u0644 \u0647\u0632\u06cc\u0646\u0647<\/td>\n\u062a\u0644\u0627\u0634 \u06a9\u0645\u062a\u0631 \u062f\u0631 \u0632\u0645\u06cc\u0646\u0647 \u0633\u062e\u062a \u0627\u0641\u0632\u0627\u0631\u061b \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0646 \u0646\u06cc\u0631\u0648\u06cc \u06a9\u0627\u0631 \u062f\u0631 \u0645\u0648\u0627\u0642\u0639 \u0642\u0637\u0639\u06cc<\/td>\n\u062a\u0648\u062c\u0651\u0647 \u0628\u0647 \u0633\u062e\u062a\u200c\u0627\u0641\u0632\u0627\u0631 \u0628\u0627\u0644\u0627\u062a\u0631\u061b \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0646 \u0642\u0627\u0628\u0644\u06cc\u062a \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062f\u0631 \u0637\u0648\u0644 \u0639\u0645\u0631<\/td>\n\u0628\u0631 \u0627\u0633\u0627\u0633 \u0647\u0632\u06cc\u0646\u0647\u0654 \u06a9\u0644 \u0645\u0627\u0644\u06a9\u06cc\u062a \u062a\u0635\u0645\u06cc\u0645 \u0628\u06af\u06cc\u0631\u06cc\u062f\u060c \u0646\u0647 \u0642\u06cc\u0645\u062a \u062e\u0631\u06cc\u062f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u062d\u0627\u0635\u0644 \u06a9\u0646\u06cc\u062f \u06a9\u0647 \u0641\u0636\u0627 \u0628\u0631\u0627\u06cc \u0628\u0627\u0632 \u06a9\u0631\u062f\u0646 \u062f\u0631\u0647\u0627\u060c \u067e\u0627\u06cc\u0627\u0646 \u062f\u0627\u062f\u0646 \u0628\u0647 \u06a9\u0627\u0628\u0644\u200c\u0647\u0627\u060c \u0645\u0631\u0632\u0647\u0627\u06cc \u062e\u0637\u0627\u06cc \u0642\u0648\u0633\u060c \u062f\u0633\u062a\u0631\u0633\u06cc \u0628\u0631\u0627\u06cc \u0628\u0644\u0646\u062f \u06a9\u0631\u062f\u0646 \u0648 \u0647\u0645\u0686\u0646\u06cc\u0646 \u0631\u0648\u0634 \u0646\u0635\u0628 \u0633\u0627\u0632\u0646\u062f\u0647 \u0645\u0637\u0627\u0628\u0642\u062a \u062f\u0627\u0631\u062f. \u06cc\u06a9 \u0637\u0631\u0627\u062d\u06cc \u0642\u0627\u0628\u0644 \u0628\u0631\u062f\u0627\u0634\u062a\u0647 \u0634\u062f\u0646 \u0641\u0642\u0637 \u0648\u0642\u062a\u06cc \u0645\u0632\u0627\u06cc\u0627\u06cc \u0646\u06af\u0647\u062f\u0627\u0631\u06cc \u0631\u0627 \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc\u200c\u062f\u0647\u062f \u06a9\u0647 \u0627\u067e\u0631\u0627\u062a\u0648\u0631\u0647\u0627 \u0628\u062a\u0648\u0627\u0646\u0646\u062f \u0628\u0647 \u0631\u0627\u062d\u062a\u06cc \u0628\u0647 \u0645\u0648\u0642\u0639\u06cc\u062a \u062a\u0633\u062a \u0628\u0631\u0633\u0646\u062f \u0648 \u0642\u0641\u0644\u200c\u0647\u0627\u06cc \u0645\u062c\u062a\u0645\u0639 \u0646\u0635\u0628 \u0634\u062f\u0647 \u0645\u0633\u062a\u0646\u062f \u0634\u062f\u0647 \u0628\u0627\u0634\u0646\u062f.<\/p>\n

\u0647\u0645\u0647\u200c\u06af\u06cc\u0631\u06cc COVID-19 \u062f\u0631 \u0633\u0631\u0627\u0633\u0631 \u062c\u0647\u0627\u0646<\/h2>\n

\u0627\u0646\u062a\u062e\u0627\u0628\u06af\u0631\u0627\u06cc\u06cc (\u062a\u0645\u064a\u064a\u0632) \u0628\u0647 \u0645\u0639\u0646\u0627\u06cc \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u0627\u0648\u0644\u06cc\u0646 \u062f\u0633\u062a\u06af\u0627\u0647\u06cc \u06a9\u0647 \u0628\u0647 \u062e\u0637\u0627\u06cc \u0645\u062a\u0635\u0644 \u0627\u0633\u062a\u060c \u0628\u0627\u0632 \u0645\u06cc\u200c\u0634\u0648\u062f \u0648 \u0628\u0627\u0631\u0647\u0627\u06cc \u0633\u0627\u0644\u0645 \u0647\u0645\u0686\u0646\u0627\u0646 \u0628\u0647 \u062c\u0631\u06cc\u0627\u0646 \u0645\u06cc\u200c\u0631\u0633\u0646\u062f. \u0645\u0642\u0627\u06cc\u0633\u0647\u0654 \u062a\u0646\u0638\u06cc\u0645\u0627\u062a \u062f\u0631 \u0637\u0648\u0644\u0627\u0646\u06cc \u0645\u062f\u062a\u060c \u06a9\u0648\u062a\u0627\u0647 \u0645\u062f\u062a\u060c \u0644\u062d\u0638\u0647\u200c\u0627\u06cc \u0648 \u062e\u0637\u0627\u06cc \u0632\u0645\u06cc\u0646 \u062f\u0631 ACB \u0648 \u0642\u0637\u0639\u06af\u0631\u0647\u0627 \u067e\u0627\u06cc\u06cc\u0646\u200c\u062a\u0631 \u0636\u0631\u0648\u0631\u06cc \u0627\u0633\u062a. \u0645\u0646\u062d\u0646\u06cc\u200c\u0647\u0627\u06cc \u0632\u0645\u0627\u0646- \u062c\u0631\u06cc\u0627\u0646 \u0636\u0631\u0648\u0631\u06cc \u0647\u0633\u062a\u0646\u062f\u060c \u0627\u0645\u0627 \u0648\u0627\u062d\u062f\u200c\u0647\u0627\u06cc \u0642\u0637\u0639 \u0627\u0644\u06a9\u062a\u0631\u0648\u0646\u06cc\u06a9\u06cc \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0647\u0645\u0686\u0646\u06cc\u0646 \u0628\u0647 \u062c\u0631\u06cc\u0627\u0646 \u0639\u0628\u0648\u0631\u06cc\u060c I \u0646\u06cc\u0627\u0632 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u0646\u062f.2<\/sup>t\u060c \u06cc\u0627 \u062f\u0627\u062f\u0647\u200c\u0647\u0627\u06cc \u0627\u0646\u062a\u062e\u0627\u0628\u06cc \u0628\u0631\u0627\u06cc \u0645\u0646\u0627\u0637\u0642. \u062a\u0623\u06cc\u06cc\u062f \u06a9\u0646\u06cc\u062f \u06a9\u0647 \u0622\u06cc\u0627 \u067e\u0631\u0648\u0698\u0647 \u0628\u0647 \u0627\u062a\u0635\u0627\u0644 \u0645\u0646\u0627\u0637\u0642\u060c \u0627\u0631\u062a\u0628\u0627\u0637\u0627\u062a\u060c \u0627\u0646\u062f\u0627\u0632\u0647\u200c\u06af\u06cc\u0631\u06cc \u06cc\u0627 \u0622\u0632\u0627\u062f\u200c\u0633\u0627\u0632\u06cc\u200c\u0647\u0627\u06cc \u06a9\u0645 \u0648\u0644\u062a\u0627\u0698\/\u06a9\u0645\u200c\u0641\u0634\u0627\u0631 \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u062f.<\/p>\n

For an industrial circuit breaker, the assembly interface matters. Busbar bracing, terminals, source impedance, cable arrangement and the selected protective settings affect the fault review. Require a switchboard verification route in addition to breaker product evidence. Include transformer, generator and other credible supply contributions under their relevant operating states. Review the \u062f\u0633\u062a\u0647\u200c\u0628\u0646\u062f\u06cc \u067e\u06cc\u0634\u0631\u0641\u062a\u0647 \u062f\u0633\u062a\u06af\u0627\u0647\u200c\u0647\u0627\u06cc \u0631\u0627\u0647\u0646\u0645\u0627\u06cc\u06cc<\/a> as background, then use the exact manufacturer’s curves and coordination tables.<\/p>\n

\u0628\u0631\u0622\u0648\u0631\u062f \u062a\u0648\u0635\u06cc\u0641\u06cc (\u0628\u062f\u0648\u0646 \u0637\u0631\u0627\u062d\u06cc \u067e\u0631\u0648\u0698\u0647):<\/em> \u0627\u06af\u0631 \u0648\u0644\u062a\u0627\u0698 \u0628\u0627\u0631 \u0633\u0647 \u0641\u0627\u0632 1200 \u06a9\u06cc\u0644\u0648\u0648\u0627\u062a \u0628\u0631\u0642\u06cc \u0628\u0627\u0634\u062f \u0628\u0627 \u0641\u0627\u06a9\u062a\u0648\u0631 \u062a\u0648\u0627\u0646 0.90\u060c \u062c\u0631\u06cc\u0627\u0646 \u062a\u062e\u0645\u06cc\u0646\u06cc I = 1,200,000\/(\u221a3 \u00d7 400 \u00d7 0.90) \u2248 1,925 A \u0627\u0633\u062a. \u0633\u067e\u0633 \u06cc\u06a9 \u0645\u0647\u0646\u062f\u0633 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0646\u0631\u062e \u06a9\u0627\u0631\u0627\u06cc\u06cc\u060c \u06a9\u0627\u0647\u0634 \u0639\u0645\u0644\u06a9\u0631\u062f \u0645\u062d\u06cc\u0637\u06cc\u060c \u0647\u0627\u0631\u0645\u0648\u0646\u06cc\u06a9\u200c\u0647\u0627\u060c \u0634\u0631\u0648\u0639 \u0645\u0648\u062a\u0648\u0631 \u0648 \u0641\u0627\u06a9\u062a\u0648\u0631\u0647\u0627\u06cc \u06a9\u062f\u060c \u062a\u0646\u0638\u06cc\u0645 \u0633\u0646\u0633\u0648\u0631 \u06cc\u0627 \u0641\u0631\u06cc\u0645 \u0631\u0627 \u0627\u0646\u062a\u062e\u0627\u0628 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u0627\u06cc\u0646 \u0645\u062b\u0627\u0644 \u0646\u0634\u0627\u0646 \u0645\u06cc\u200c\u062f\u0647\u062f \u06a9\u0647 \u0686\u0631\u0627 \u0648\u0644\u062a\u0627\u0698 \u0648 \u0641\u0627\u06a9\u062a\u0648\u0631 \u062a\u0648\u0627\u0646 \u0628\u0627\u06cc\u062f \u0647\u0645\u0631\u0627\u0647 \u0628\u0627 \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u062c\u0631\u06cc\u0627\u0646 \u0628\u0627\u0634\u0646\u062f.<\/p>\n

\n\"Existing
Existing W9 article image for breaker maintenance context.<\/figcaption><\/figure>\n

ACB Installation Environment<\/h2>\n

\u062f\u0645\u0627\u06cc \u0645\u062d\u06cc\u0637\u060c \u0627\u0631\u062a\u0641\u0627\u0639\u060c \u0631\u0637\u0648\u0628\u062a\u060c \u06af\u0631\u062f \u0648 \u063a\u0628\u0627\u0631\u060c \u0628\u062e\u0627\u0631\u0627\u062a \u0633\u0645\u06cc \u0648 \u0644\u0631\u0632\u0634\u200c\u0647\u0627 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0628\u0631 \u062a\u0648\u0627\u0646 \u0645\u0635\u0631\u0641\u06cc \u0648 \u062f\u0648\u0631\u0647 \u0633\u0631\u0648\u06cc\u0633 \u06cc\u06a9 \u0642\u0637\u0639 \u06a9\u0646\u0646\u062f\u0647 \u0645\u062f\u0627\u0631 ACB \u062a\u0623\u062b\u06cc\u0631 \u0628\u06af\u0630\u0627\u0631\u0646\u062f. \u0628\u0631\u0627\u06cc \u0634\u0631\u0627\u06cc\u0637 \u0648\u0627\u0642\u0639\u06cc \u0645\u062d\u0641\u0638\u0647 \u0648 \u0645\u062d\u06cc\u0637\u060c \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u0645\u0631\u0628\u0648\u0637 \u0628\u0647 \u06a9\u0627\u0647\u0634 \u062a\u0648\u0627\u0646 \u0631\u0627 \u062f\u0631\u06cc\u0627\u0641\u062a \u06a9\u0646\u06cc\u062f\u061b \u0627\u0632 \u0635\u0641\u062d\u0627\u062a \u0641\u0647\u0631\u0633\u062a \u06a9\u0644\u06cc \u0622\u0646 \u0631\u0627 \u0646\u06af\u06cc\u0631\u06cc\u062f. \u062f\u0631 \u0645\u0646\u0627\u0637\u0642 \u06af\u0631\u062f \u0648 \u063a\u0628\u0627\u0631\u0632\u0627 \u06cc\u0627 \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc\u060c \u0628\u0627 \u0633\u0627\u0632\u0646\u062f\u0647 \u067e\u0646\u0644 \u0627\u0644\u0632\u0627\u0645\u0627\u062a \u0636\u062f \u0646\u0634\u062a\u060c \u0641\u0627\u0635\u0644\u0647 \u0648 \u0641\u0636\u0627\u06cc \u0628\u06cc\u0646 \u0642\u0637\u0639\u0627\u062a \u0631\u0627 \u0645\u0634\u062e\u0635 \u06a9\u0646\u06cc\u062f. \u0642\u0628\u0644 \u0627\u0632 \u0627\u0646\u062c\u0645\u0627\u062f \u0637\u0631\u062d \u067e\u0646\u0644\u060c \u0628\u0627\u06cc\u062f \u0627\u06cc\u0646 \u0634\u0631\u0627\u06cc\u0637 \u0631\u0627 \u0628\u0627 \u0642\u0637\u0639 \u06a9\u0646\u0646\u062f\u0647 \u0645\u062f\u0627\u0631 \u0635\u0646\u0639\u062a\u06cc \u0645\u0648\u0631\u062f \u0628\u0631\u0631\u0633\u06cc \u0642\u0631\u0627\u0631 \u062f\u0647\u06cc\u062f.<\/p>\n

Define maintenance before approving the bill of materials. The plan should follow the manufacturer on inspection, cleaning, permitted lubrication, mechanical operation, contact-wear assessment and trip testing. Do not set a universal service interval or apply cleaning and lubrication methods from a different breaker family. Record firmware and setting changes where applicable, and compare the outage, service and spare costs without inventing a saving.<\/p>\n

\u06cc\u06a9 \u0628\u0631\u0631\u0633\u06cc \u062f\u0642\u06cc\u0642 \u0627\u0632 \u0627\u0646\u062a\u062e\u0627\u0628 \u0627\u0639\u0636\u0627\u06cc \u062a\u06cc\u0645 ACB \u0647\u0645\u0686\u0646\u06cc\u0646 \u062b\u0628\u062a \u0645\u06cc\u200c\u06a9\u0646\u062f \u06a9\u0647 \u0686\u0647 \u06a9\u0633\u06cc \u0647\u0631 \u06cc\u06a9 \u0627\u0632 \u062a\u0635\u0645\u06cc\u0645\u0627\u062a \u0631\u0627 \u0627\u062a\u062e\u0627\u0630 \u0645\u06cc\u200c\u06a9\u0646\u062f: \u0645\u0647\u0646\u062f\u0633 \u0628\u0631\u0642 \u0645\u0633\u0626\u0648\u0644\u06cc\u062a \u0648 \u0647\u0645\u0627\u0647\u0646\u06af\u06cc \u0631\u0627 \u062a\u0623\u06cc\u06cc\u062f \u0645\u06cc\u200c\u06a9\u0646\u062f\u060c \u0633\u0627\u0632\u0646\u062f\u0647 \u067e\u0646\u0644 \u062a\u0627\u06cc\u06cc\u062f \u0645\u06cc\u200c\u06a9\u0646\u062f \u06a9\u0647 \u0627\u062a\u0635\u0627\u0644\u0627\u062a \u0648 \u067e\u06cc\u0686\u200c\u0647\u0627 \u0635\u062d\u06cc\u062d \u0647\u0633\u062a\u0646\u062f \u0648 \u0627\u067e\u0631\u0627\u062a\u0648\u0631 \u0646\u06cc\u0632 \u062a\u0623\u06cc\u06cc\u062f \u0645\u06cc\u200c\u06a9\u0646\u062f \u06a9\u0647 \u062f\u0633\u062a\u0631\u0633\u06cc \u0648 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u062a\u0633\u062a \u0628\u0631\u0642\u0631\u0627\u0631 \u0627\u0633\u062a.<\/p>\n

Complete ACB Spare Requirements<\/h3>\n

A drawout spare must match the cradle, terminals, interlocks, sensor or trip configuration and required accessories. Same frame current alone does not prove interchangeability. Ask for the approved breaker-cradle combination and record commissioning settings before swapping units. Compare the cost of the spare, storage, periodic checks, handling equipment and planned outage labour; the calculation is a project-specific ownership-cost framework, not a promised payback.<\/p>\n

\u0627\u0646\u062a\u062e\u0627\u0628 \u0645\u0628\u062a\u0646\u06cc \u0628\u0631 \u06a9\u0627\u0631\u0628\u0631\u062f ACB<\/h2>\n\n\n\n\n\n\n\n\n
\u0627\u0637\u0644\u0627\u0639\u200c\u0646\u0627\u0645\u0647<\/th>\n\u0646\u06af\u0631\u0627\u0646\u06cc \u0627\u0648\u0644\u06cc\u0647<\/th>\n\u062a\u0623\u06a9\u06cc\u062f \u0628\u0631 \u0645\u0634\u062e\u0635\u0627\u062a<\/th>\n\u0634\u0648\u0627\u0647\u062f \u0645\u0641\u06cc\u062f\u06cc<\/th>\n<\/tr>\n<\/thead>\n
\u0635\u0646\u0639 \u06a9\u0627\u0644\u0627\u060c \u0645\u0646\u0628\u0639 \u0627\u0635\u0644\u06cc \u062f\u0631\u0622\u0645\u062f<\/td>\n\u0639\u0645\u0644\u06a9\u0631\u062f \u0628\u0627\u0644\u0627 \u062f\u0631 \u0645\u0648\u0627\u0642\u0639 \u062e\u0631\u0627\u0628\u06cc \u0648 \u0627\u0633\u062a\u0645\u0631\u0627\u0631 \u06a9\u0627\u0631<\/td>\n\u0645\u0642\u0627\u0648\u0645\u062a\u060c \u06af\u0632\u06cc\u0646\u0634\u060c \u0642\u0627\u0628\u0644\u06cc\u062a \u0628\u0631\u062f\u0627\u0634\u062a\u0647 \u0634\u062f\u0646\u060c \u0642\u0637\u0639\u0627\u062a \u0633\u0631\u0648\u06cc\u0633<\/td>\n\u0645\u0637\u0627\u0644\u0639\u0627\u062a \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647\u060c \u0645\u0646\u062d\u0646\u06cc\u200c\u0647\u0627\u06cc \u0647\u0645\u0627\u0647\u0646\u06af\u06cc\u060c \u0628\u0631\u0646\u0627\u0645\u0647 \u062a\u0639\u0645\u06cc\u0631 \u0648 \u0646\u06af\u0647\u062f\u0627\u0631\u06cc<\/td>\n<\/tr>\n
\u0648\u0627\u062d\u062f \u0628\u0627 \u0627\u0647\u0645\u06cc\u062a \u0628\u0627\u0644\u0627\u06cc\u06cc \u062f\u0631 \u0632\u0645\u06cc\u0646\u0647 \u062f\u0627\u062f\u0647\u200c\u0647\u0627 \u06cc\u0627 \u0641\u0631\u0622\u06cc\u0646\u062f\u200c\u0647\u0627<\/td>\n\u0628\u0627\u0632\u0633\u0627\u0632\u06cc \u0648 \u0646\u0638\u0627\u0631\u062a \u0633\u0631\u06cc\u0639<\/td>\n\u0633\u0627\u062e\u062a \u0648 \u0633\u0627\u0632 \u0642\u0627\u0628\u0644 \u0628\u0631\u062f\u0627\u0634\u062a\u060c \u0627\u062a\u0635\u0627\u0644\u0627\u062a \u0645\u06a9\u0627\u0646\u06cc\u06a9\u06cc\u060c \u0627\u0631\u062a\u0628\u0627\u0637\u0627\u062a<\/td>\n\u0631\u0648\u0634 \u0646\u0635\u0628 \u0642\u0641\u0633\u0647\u060c \u0644\u06cc\u0633\u062a \u0647\u0634\u062f\u0627\u0631\u0647\u0627\u060c \u0633\u0648\u0627\u0628\u0642 \u062a\u0633\u062a<\/td>\n<\/tr>\n
\u067e\u0627\u0646\u0644 \u06a9\u0646\u062a\u0631\u0644 \u0628\u0631\u0642 OEM<\/td>\n\u0628\u0627\u0632\u062a\u0648\u0644\u06cc\u062f \u067e\u0630\u06cc\u0631\u06cc \u062f\u0631 \u0628\u06cc\u0646 \u0633\u0627\u062e\u062a\u0627\u0631\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641<\/td>\n\u062a\u062c\u0647\u06cc\u0632\u0627\u062a \u062b\u0627\u0628\u062a\u060c \u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc\u060c \u0644\u0648\u0627\u0632\u0645 \u062c\u0627\u0646\u0628\u06cc \u0648 \u0646\u0642\u0634\u0647\u200c\u0647\u0627<\/td>\n\u0648\u0631\u0642\u200c\u0647\u0627\u06cc \u0645\u0648\u0627\u062f \u0627\u0648\u0644\u06cc\u0647 \u062a\u0623\u06cc\u06cc\u062f \u0634\u062f\u0647\u060c \u0646\u0642\u0634\u0647\u200c\u0647\u0627\u06cc \u0633\u06cc\u0645 \u06a9\u0634\u06cc\u060c \u0628\u0631\u0646\u0627\u0645\u0647 \u0628\u0627\u0632\u0631\u0633\u06cc<\/td>\n<\/tr>\n
\u0634\u0648\u0631\u0627\u06cc \u062e\u062f\u0645\u0627\u062a \u0639\u0645\u0648\u0645\u06cc \u06cc\u0627 \u0632\u06cc\u0631\u0628\u0646\u0627\u06cc\u06cc<\/td>\n\u0645\u062d\u06cc\u0637 \u0633\u062e\u062a \u0648 \u062e\u062f\u0645\u062a \u0637\u0648\u0644\u0627\u0646\u06cc<\/td>\n\u062a\u062e\u0641\u06cc\u0641 \u0642\u062f\u0631\u062a\u060c \u0631\u0627\u0628\u0637 \u0645\u062d\u0641\u0638\u0647\u060c \u06a9\u0646\u062a\u0631\u0644 \u062e\u0648\u0631\u062f\u06af\u06cc\u060c \u0642\u0637\u0639\u0627\u062a \u06cc\u062f\u06a9\u06cc<\/td>\n\u0627\u0637\u0644\u0627\u0639\u0627\u062a \u0632\u06cc\u0633\u062a \u0645\u062d\u06cc\u0637\u06cc\u060c \u062a\u0623\u06cc\u06cc\u062f \u0645\u0648\u0646\u062a\u0627\u0698\u060c \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u062e\u062f\u0645\u0627\u062a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\"Existing
Existing W9 article image for switchboard interface context.<\/figcaption><\/figure>\n

ACB Compliance Requirements<\/h2>\n

IEC 60947-2 specifies requirements and verification tests for circuit breakers used in low-voltage switchgear and controlgear. It is a product standard; confirm the declared ratings and test evidence for the exact configuration. UL 1066 is the North American standard for low-voltage AC power circuit breakers, with construction and performance requirements that may differ from an IEC declaration. A project using UL-listed equipment must verify the listing, installation conditions and marking through the applicable certification body.<\/p>\n

NFPA 70 (National Electrical Code) governs electrical installation in the United States. It addresses conductor protection, equipment ratings, working space and other installation matters; it does not replace the breaker product standard. Requirements depend on destination market, system architecture and the authority having jurisdiction. Unsupported claims such as \u201cUL compliant\u201d or \u201cIEC certified\u201d can delay approval, invalidate a tender response or create warranty disputes.<\/p>\n

ACB Supplier Evaluation Checklist<\/h2>\n
    \n
  1. \u06cc\u06a9 \u0628\u0631\u0648\u0634\u0648\u0631 \u0627\u0637\u0644\u0627\u0639\u0627\u062a\u06cc \u0635\u0627\u062f\u0631 \u06a9\u0646\u06cc\u062f \u06a9\u0647 \u0634\u0627\u0645\u0644 \u0648\u0644\u062a\u0627\u0698\u060c \u062c\u0631\u06cc\u0627\u0646 \u0645\u0633\u062a\u0645\u0631\u060c \u0639\u062f\u062f \u0642\u0637\u0628\u060c \u0641\u0631\u06a9\u0627\u0646\u0633\u060c \u062c\u0631\u06cc\u0627\u0646 \u062e\u0631\u0627\u0628\u06cc\u060c \u0632\u0645\u0627\u0646 \u0645\u0642\u0627\u0648\u0645\u062a\u060c \u0639\u0645\u0644\u06a9\u0631\u062f\u200c\u0647\u0627\u06cc \u0642\u0637\u0639 \u0648 \u0634\u0631\u0627\u06cc\u0637 \u0645\u062d\u06cc\u0637\u06cc \u0628\u0627\u0634\u062f.<\/li>\n
  2. \u067e\u0633 \u0627\u0632 \u0645\u0642\u0627\u06cc\u0633\u0647 \u0647\u0632\u06cc\u0646\u0647 \u0642\u0637\u0639 \u0628\u0631\u0642\u060c \u0641\u0636\u0627\u060c \u0633\u06cc\u0633\u062a\u0645\u200c\u0647\u0627\u06cc \u062d\u0641\u0627\u0638\u062a\u06cc\u060c \u0627\u0633\u062a\u0631\u0627\u062a\u0698\u06cc \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646\u06cc \u0648 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc\u060c \u0628\u0627\u06cc\u062f \u0628\u06cc\u0646 \u0633\u0627\u062e\u062a\u0627\u0631\u06cc \u062b\u0627\u0628\u062a \u0648 \u0642\u0627\u0628\u0644 \u0628\u0631\u062f\u0627\u0634\u062a \u0627\u0646\u062a\u062e\u0627\u0628 \u06a9\u0646\u06cc\u062f.<\/li>\n
  3. \u06cc\u06a9 \u0628\u0631\u0631\u0633\u06cc \u0647\u0645\u0627\u0647\u0646\u06af\u06cc \u0648 \u0628\u0631\u0631\u0633\u06cc \u0627\u062e\u062a\u0644\u0627\u0644\u0627\u062a \u0631\u0627 \u0628\u0627 \u06a9\u0644 \u0634\u0628\u06a9\u0647\u0654 \u0645\u0646\u062a\u0647\u06cc \u0628\u0647 \u0648 \u0645\u0646\u0634\u0623 \u0627\u062c\u0631\u0627 \u06a9\u0646\u06cc\u062f\u061b \u0645\u0646\u062d\u0646\u06cc\u200c\u0647\u0627 \u0648 \u062a\u0646\u0638\u06cc\u0645\u0627\u062a \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0627\u0633\u0646\u0627\u062f \u06a9\u0646\u062a\u0631\u0644\u200c\u0646\u0634\u062f\u0647 \u062d\u0641\u0638 \u06a9\u0646\u06cc\u062f.<\/li>\n
  4. \u067e\u06cc\u0634 \u0627\u0632 \u0627\u0631\u0633\u0627\u0644 \u0628\u0647 \u0633\u0627\u0632\u0646\u062f\u0647 \u067e\u0646\u0644\u060c \u0645\u0633\u062a\u0646\u062f\u0627\u062a \u062f\u0642\u06cc\u0642 \u0645\u062d\u0635\u0648\u0644\u060c \u0628\u0631\u0646\u0627\u0645\u0647 \u0628\u0627\u0632\u0631\u0633\u06cc\u060c \u0622\u0632\u0645\u0627\u06cc\u0634\u200c\u0647\u0627\u06cc \u0645\u0639\u0645\u0648\u0644 \u0648 \u0633\u0627\u0632\u06af\u0627\u0631\u06cc \u0628\u0627 \u0644\u0648\u0627\u0632\u0645 \u062c\u0627\u0646\u0628\u06cc \u0631\u0627 \u0628\u0631\u0631\u0633\u06cc \u06a9\u0646\u06cc\u062f.<\/li>\n
  5. \u0628\u0631\u0627\u06cc \u0645\u0630\u0627\u06a9\u0631\u0627\u062a \u0645\u0631\u0628\u0648\u0637 \u0628\u0647 \u062a\u0623\u0645\u06cc\u0646 \u0645\u0648\u0627\u062f \u0627\u0648\u0644\u06cc\u0647\u060c \u0634\u0631\u06a9\u062a Zhejiang W9 Group Technology Co., Ltd. (\u06a9\u0647 \u062f\u0631 \u0633\u0627\u0644 \u06f2\u06f0\u06f2\u06f0 \u062a\u0623\u0633\u06cc\u0633 \u0634\u062f\u0647 \u0627\u0633\u062a)\u060c \u0645\u062d\u0635\u0648\u0644\u0627\u062a \u062d\u0641\u0627\u0638\u062a \u0648\u0644\u062a\u0627\u0698 \u067e\u0627\u06cc\u06cc\u0646 \u0631\u0627 \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc\u200c\u062f\u0647\u062f \u0648 \u0627\u0632 \u0647\u0645\u06a9\u0627\u0631\u06cc \u062f\u0631 \u0632\u0645\u06cc\u0646\u0647\u0654 \u062a\u0648\u0644\u06cc\u062f \u0648 \u0637\u0631\u0627\u062d\u06cc \u0645\u062c\u062f\u062f (OEM\/ODM) \u0648 \u0647\u0645\u0686\u0646\u06cc\u0646 \u0622\u0632\u0645\u0627\u06cc\u0634 \u0648 \u0628\u0627\u0632\u0631\u0633\u06cc \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u0645\u06cc\u200c\u06a9\u0646\u062f. \u0628\u0631\u0627\u06cc \u062f\u0631\u06cc\u0627\u0641\u062a \u0646\u0642\u0634\u0647\u200c\u0647\u0627\u06cc \u0645\u0634\u062e\u0635 \u0628\u0631\u0627\u06cc \u062a\u0646\u0638\u06cc\u0645\u0627\u062a\u060c \u0628\u0647 W9 \u0645\u0631\u0627\u062c\u0639\u0647 \u06a9\u0646\u06cc\u062f \u0648 \u0628\u0647 \u062c\u0627\u06cc \u0627\u062a\u06a9\u0627 \u0628\u0647 \u06cc\u06a9 \u0627\u0639\u0644\u0627\u0645\u06cc\u0647 \u06a9\u0644\u06cc\u060c \u0627\u0632 \u0622\u0646\u0647\u0627 \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u0646\u0645\u0648\u0646\u0647\u200c\u0647\u0627\u06cc \u0627\u062c\u0631\u0627\u06cc\u06cc \u06a9\u0646\u06cc\u062f.<\/li>\n<\/ol>\n

    \u0628\u0631\u0627\u06cc \u0645\u0631\u062c\u0639 \u0639\u0645\u0644\u06cc\u060c \u0628\u0647 \u0627\u06cc\u0646 \u0644\u06cc\u0646\u06a9 \u0645\u0631\u0627\u062c\u0639\u0647 \u06a9\u0646\u06cc\u062f: \u0635\u0641\u062d\u0647 \u0645\u062d\u0635\u0648\u0644 \u0642\u0637\u0639 \u06a9\u0646\u0646\u062f\u0647 \u0645\u062f\u0627\u0631 \u0647\u0648\u0627 WEW1<\/a>. \u0647\u0631 \u0646\u0642\u0644 \u0642\u0648\u0644 \u0631\u0627 \u0628\u0627 \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0631\u06cc\u0632\u06cc \u062a\u0623\u06cc\u06cc\u062f\u0634\u062f\u0647\u060c \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f\u200c\u0647\u0627\u06cc \u0627\u0639\u0645\u0627\u0644\u06cc \u0648 \u0627\u0644\u0632\u0627\u0645\u0627\u062a \u062a\u0633\u062a \u067e\u0631\u0648\u0698\u0647 \u067e\u06cc\u0648\u0646\u062f \u062f\u0647\u06cc\u062f.<\/p>\n

    \n

    \u0633\u0648\u0627\u0644\u0627\u062a \u0645\u062a\u062f\u0627\u0648\u0644<\/h2>\n

    \u0641\u0631\u0642 \u0628\u06cc\u0646 \u06cc\u06a9 ACB \u0648 \u06cc\u06a9 MCCB \u0686\u06cc\u0633\u062a\u061f<\/h3>\n

    \u0642\u0637\u0639\u200c\u06a9\u0646\u0646\u062f\u0647 \u0645\u062f\u0627\u0631 ACB \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0628\u0631\u0627\u06cc \u0645\u062f\u0627\u0631\u0647\u0627\u06cc \u0628\u0631\u0642 \u0634\u0647\u0631\u06cc \u0628\u0627 \u062c\u0631\u06cc\u0627\u0646 \u0628\u0627\u0644\u0627\u062a\u0631 \u0648 \u0645\u0646\u0628\u0639 \u062a\u063a\u0630\u06cc\u0647 \u0637\u0631\u0627\u062d\u06cc \u0634\u062f\u0647 \u0627\u0633\u062a \u0648 \u0628\u0631\u0627\u06cc \u062d\u0641\u0627\u0638\u062a\u060c \u0633\u0648\u0626\u06cc\u0686\u06cc\u0646\u06af \u0648 \u0647\u0645\u0627\u0647\u0646\u06af\u06cc \u062f\u0631 \u06cc\u06a9 \u0645\u062c\u0645\u0648\u0639\u0647 \u0648\u0644\u062a\u0627\u0698 \u067e\u0627\u06cc\u06cc\u0646 \u0637\u0631\u0627\u062d\u06cc \u0634\u062f\u0647 \u0627\u0633\u062a. \u06cc\u06a9 MCCB \u0627\u063a\u0644\u0628 \u06a9\u0648\u0686\u06a9\u062a\u0631 \u0627\u0633\u062a \u0648 \u0628\u0631\u0627\u06cc \u0645\u062f\u0627\u0631\u0627\u062a \u067e\u0627\u06cc\u06cc\u0646\u200c\u062f\u0633\u062a \u0645\u0646\u0627\u0633\u0628\u062a\u0631 \u0627\u0633\u062a. \u0627\u0646\u062a\u062e\u0627\u0628 \u0635\u062d\u06cc\u062d \u0628\u0647 \u062c\u0631\u06cc\u0627\u0646\u060c \u0648\u0638\u06cc\u0641\u0647 \u062e\u0637\u0627\u06cc\u060c \u0641\u0636\u0627\u060c \u06af\u0632\u06cc\u0646\u0634 \u0648 \u0646\u06af\u0647\u062f\u0627\u0631\u06cc \u0628\u0633\u062a\u06af\u06cc \u062f\u0627\u0631\u062f\u061b \u0646\u0647 \u0628\u0647 \u06cc\u06a9 \u062d\u062f \u062c\u0631\u06cc\u0627\u0646 \u0633\u0627\u062f\u0647.<\/p>\n

    \u0686\u06af\u0648\u0646\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646 \u06cc\u06a9 \u0642\u0637\u0639 \u06a9\u0646\u0646\u062f\u0647 \u0645\u062f\u0627\u0631 \u0647\u0648\u0627 \u0631\u0627 \u0627\u0646\u062f\u0627\u0632\u0647 \u06af\u06cc\u0631\u06cc \u06a9\u0631\u062f\u061f<\/h3>\n

    Calculate design current from the actual load, verify conductor ampacity and ambient derating, then check interrupting and short-time withstand ratings against the prospective fault current. Set long-time, short-time, instantaneous and ground-fault functions through a \u0645\u0637\u0627\u0644\u0639\u0647 \u0647\u0645\u0627\u0647\u0646\u06af\u064a<\/strong>. Have the final settings reviewed by the responsible electrical engineer.<\/p>\n

    \u0686\u0647 \u0632\u0645\u0627\u0646\u06cc \u0628\u0627\u06cc\u062f \u06cc\u06a9 ACB \u0642\u0627\u0628\u0644 \u0628\u0631\u062f\u0627\u0634\u062a \u0645\u0634\u062e\u0635 \u06a9\u0646\u0645\u061f<\/h3>\n

    \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u0632\u0645\u0627\u0646 \u0642\u0637\u0639 \u0628\u0631\u0642 \u06a9\u0627\u0647\u0634 \u06cc\u0627\u0641\u062a\u0647 \u0648 \u062a\u0633\u062a\u200c\u0647\u0627\u06cc \u0645\u0639\u0645\u0648\u0644 \u06cc\u0627 \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646\u06cc \u0633\u0631\u06cc\u0639 \u0627\u0631\u0632\u0634 \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc \u062f\u0627\u0631\u0646\u062f\u060c \u0628\u0627\u06cc\u062f \u0633\u0627\u062e\u062a\u0627\u0631\u06cc \u0642\u0627\u0628\u0644 \u0628\u0631\u062f\u0627\u0634\u062a \u0627\u0646\u062a\u062e\u0627\u0628 \u0634\u0648\u062f. \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u062d\u0627\u0635\u0644 \u06a9\u0646\u06cc\u062f \u06a9\u0647 \u0641\u0636\u0627\u06cc \u06a9\u0627\u0641\u06cc \u0628\u0631\u0627\u06cc \u0646\u0635\u0628 \u0642\u0641\u0633\u0647\u200c\u0647\u0627\u060c \u0634\u0627\u062a\u0631\u200c\u0647\u0627\u060c \u0633\u06cc\u0633\u062a\u0645\u200c\u0647\u0627\u06cc \u0642\u0641\u0644 \u0648 \u0628\u0644\u0646\u062f \u06a9\u0631\u062f\u0646 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u0648 \u0627\u067e\u0631\u0627\u062a\u0648\u0631\u0647\u0627\u06cc \u0642\u0637\u0627\u0631 \u0631\u0627 \u0628\u0627 \u0631\u0648\u0634 \u062a\u0648\u0644\u06cc\u062f\u06a9\u0646\u0646\u062f\u0647 \u0622\u0645\u0648\u0632\u0634 \u062f\u0647\u06cc\u062f. \u0628\u0631\u0627\u06cc \u06cc\u06a9 \u0642\u0637\u0627\u0631 \u06a9\u0648\u0686\u06a9 \u0648 \u0628\u0627 \u0633\u0631\u0648\u06cc\u0633 \u06a9\u0645\u060c \u0633\u0627\u062e\u062a\u0627\u0631\u06cc \u062b\u0627\u0628\u062a \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0627\u0632 \u0646\u0638\u0631 \u0645\u062c\u0645\u0648\u0639\u0647\u200c\u0627\u0642\u062a\u0635\u0627\u062f\u06cc \u0628\u0647\u062a\u0631\u06cc \u0628\u0631\u062e\u0648\u0631\u062f\u0627\u0631 \u0628\u0627\u0634\u062f.<\/p>\n

    \u0622\u06cc\u0627 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f IEC 60947-2 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0639\u0646\u0627\u0633\u062a \u06a9\u0647 \u06cc\u06a9 \u067e\u0631\u06cc\u0632 \u062f\u0627\u0631\u0627\u06cc \u06af\u0648\u0627\u0647\u06cc\u0646\u0627\u0645\u0647 UL \u0627\u0633\u062a\u061f<\/h3>\n

    \u062e\u06cc\u0631. IEC 60947-2 \u0648 UL 1066 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f\u200c\u0647\u0627\u06cc \u0645\u062d\u0635\u0648\u0644\u0627\u062a \u0645\u062a\u0641\u0627\u0648\u062a \u0628\u0627 \u0633\u06cc\u0633\u062a\u0645\u200c\u0647\u0627\u06cc \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u0648 \u0639\u0644\u0627\u0645\u062a\u06af\u0630\u0627\u0631\u06cc \u0645\u062a\u0641\u0627\u0648\u062a \u0647\u0633\u062a\u0646\u062f. \u06cc\u06a9 \u067e\u0631\u0648\u0698\u0647 \u0622\u0645\u0631\u06cc\u06a9\u0627\u06cc\u06cc \u0628\u0627\u06cc\u062f \u0627\u0632 \u0634\u0648\u0627\u0647\u062f \u0648 \u0634\u0631\u0627\u06cc\u0637 \u0646\u0635\u0628 UL \u0645\u0631\u0628\u0648\u0637\u0647 \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u06a9\u0646\u062f\u061b \u0627\u0639\u0644\u0627\u0645\u06cc\u0647\u0654 IEC \u0628\u0647 \u062a\u0646\u0647\u0627\u06cc\u06cc \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646\u06cc \u0628\u0631\u0627\u06cc \u0622\u0646 \u0646\u06cc\u0633\u062a.<\/p>\n

    \u06cc\u06a9 \u062e\u0631\u06cc\u062f\u0627\u0631 \u0635\u0646\u0639\u062a\u06cc \u0628\u0627\u06cc\u062f \u0686\u0647 \u0645\u062f\u0627\u0631\u06a9\u06cc \u0631\u0627 \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u06a9\u0646\u062f\u061f<\/h3>\n

    Request a datasheet for the exact frame and trip unit, \u062e\u0637\u0648\u0637 \u062c\u0631\u06cc\u0627\u0646 \u0632\u0645\u0627\u0646<\/strong>, short-circuit and withstand ratings, dimensional and wiring drawings, accessory list, routine-test or inspection records, installation instructions and maintenance guidance. Add the project\u2019s coordination study and approved settings to the handover file.<\/p>\n<\/section>\n

    \u0645\u0646\u0627\u0628\u0639<\/h2>\n