Miniature Circuit Breakers (MCBs) ensure electrical safety in homes, offices and other buildings as well as for industrial applications by protecting electrical installations against overloads and short-circuits.

2018年12月26日 · A Miniature Circuit Breaker (MCB) is an automatically operated electrical switch used to protect low voltage electrical circuits from damage caused by excess current from an overload or short circuit.

微型斷路器 （Miniature Circuit Breaker，簡稱 MCB）是家用及商用 斷路器 的主力。 功能是在線路過載或短路時自動截斷電流。 带过电流保护的剩余电流动作断路器（Residual Current Breaker with Overload，簡稱RCBO）則是結合了 漏电 和過電流保護的產品，用於 插座 回路及其他容易被人觸摸的地方。 根據 國際標準 IEC 60898，額定電流（I n）是指斷路器在30°C下可承受的最大連續電流。 IEC 60898-1推薦的額定值包括：6, 10, 13, 16, 20, 25, 32, 40, 50, 63, 80, 100和125 …

SENTRON miniature circuit breakers (MCBs) by Siemens protect against overloads and short circuits – in mechanical engineering or in industrial applications.

微型断路器，简称MCB（Micro Circuit Breaker/ Miniature Circuit Breaker），是建筑电气终端配电装置引中使用最广泛的一种终端保护电器。 用于125A以下的单相、三相的短路、过载、过压等保护，包括单极1P，二极2P、三极3P、四极4P等四种。

An MCB (Miniature Circuit Breaker) is an electromechanical device designed to protect electrical circuits from damage caused by overcurrent or short circuits. Unlike fuses, which require replacement after tripping, MCBs can be easily reset, making them more durable and efficient.

Miniature circuit breakers (MCBs) are compact in size and are designed to fit into standardized electrical panels and distribution boards. They work by detecting abnormal levels of current flowing through the circuit and automatically interrupting the flow of electricity to prevent damage to the circuit and connected devices.

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What is an MCB (Miniature Circuit Breaker)? An MCB, or Miniature Circuit Breaker, is a small safety device you’ll find in most modern electrical panels. Its job is simple but crucial: protect electrical circuits from overloads and short circuits, which can cause overheating and even fires.

UL 489 DIN rail mountable miniature circuit breakers protect feeder, branch, and control circuits from overload current. Rated for AC or DC applications, space-saving DIN-rail mountable circuit breakers provide B, C, or D trip curves and are available in current ratings up to 63A.