MCCB circuit breaker CSDM7-63L-4300 CSDM7-63-4300 4P 63A 63a mccb industrial circuit breaker thermal and magnetic circuit breaker

 4P (four-pole) design, compatible with three-phase four-wire circuits, meeting the protection needs of multi-circuit power supply; 25KA low breaking capacity, capable of handling short-circuit faults in conventional industrial, commercial and civil scenarios, and stably cutting off fault current; Rated current 63A, matching the power demand of medium and high-power equipment, preventing overload tripping;Thermal-magnetic dual protection, featuring both overload (thermal trip) and short-circuit (magnetic trip) protection functions with fast and stable response.

The thermal trip component cuts off overload current slowly (when equipment operates under overload for a long time) through the thermal effect of current; the magnetic trip component responds to short-circuit current instantly (short circuit caused by incorrect line connection), ensuring high protection accuracy and avoiding electrical damage or line fire.All four poles are switched on and off simultaneously. It not only protects the live wire but also cuts off the neutral wire, suitable for scenarios with high electrical safety requirements (such as commercial kitchens, small workshops, and household main switches), reducing the risk of live neutral wires. The shell is made of high-temperature resistant and flame-retardant material, which can withstand high temperatures during circuit faults; the internal metal components are rust-proof treated, ensuring a long service life, reducing the cost of frequent replacement.