JCB3-63DC DC MCB:定格、極性および配線確認
レビューを 太陽光発電の保護範囲 最大DC電圧および許容されるポール接続に対して。.
The DC MCCBガイド AC定格ではDCの断電源能力を保証できない理由を説明します。.
JCB3-63DC rating and documentation matrix
| フィールド | Reviewed table | Required clarification |
|---|---|---|
| Current | 6–63 A options | Exact current and B/C curve |
| Pole count | 1P through 4P | Approved wiring arrangement |
| Voltage | Pole-dependent values | Actual version and connection |
| 故障評価 | 6 kA entry | Applicable voltage and test conditions |
| Polarity | Conflicting public wording | Delivered marking and written instructions |
| Project state | レビュー |
|---|---|
| Normal operation | Current direction and conductor protection |
| Fault | All possible source contributions |
| メンテナンス | Isolation of every source |
| Replacement | Matching code, markings and diagram |
The 太陽光発電の普及ガイド PV-stringの仮定とバッテリーの故障電流の役割を区別する。.
Resolve polarity before wiring
The current table lists 6–63 A, B/C curves, 1P through 4P and pole-dependent DC voltages up to the stated four-pole configuration. It also lists 6 kA, whose applicable voltage and connection conditions must be confirmed. These entries do not settle the inconsistency between polarity descriptions in the surrounding prose.
Request the delivered unit’s terminal markings, exact order code and approved diagram. Assess normal and possible fault-current directions for the actual source arrangement. Do not use this article to infer a battery or PV wiring recipe, or assume a generic label permits bidirectional interruption.
JCB3-63DC procurement requires a confirmed polarity diagram. The current public listing contains inconsistent polarity wording, so its title alone cannot determine the permitted current direction of the delivered version.
The JCB3-63DC MCB’s compact and durable design makes it easy to install and ensures long-term reliability. Its polarized DC configuration further enhances its versatility, making it suitable for a variety of DC circuit protection applications.
よくある質問
Is JCB3-63DC polarity-sensitive?
The reviewed public wording is inconsistent. Obtain the exact supplied version’s markings and wiring instructions before installation.
Is 1000 V available from a single pole?
The table assigns different voltage ratings to different pole configurations. Do not apply the four-pole value to one pole or improvise series connections.
Does its DC label establish any battery application?
No. Confirm voltage, 故障電流, permitted direction and source conditions for the actual battery circuit.
What needs to accompany a JCB3-63DC order?
Request the full code, current and curve, pole arrangement, voltage-specific fault-duty information and approved polarity diagram. Resolve discrepancies before release.
参考文献
- IEC 60947-2:2024 — 回路断開器製品の範囲.
- IEC 60364-7-712:2025 — 光電設備.
- IEC 60947-3 改訂版 — スイッチ、ディスコンタクト、スイッチ・ディスコンタクト.
PVまたはDCの選択については、, W9グループへのお問い合わせ 最大電圧、動作電流、接地、および意図されたポール接続に関する情報。.