RCD blocks are residual current devices suitable for assembly with a standard MCB. The residual current operated circuit-breaker obtained in this way maintains both the electrical characteristics of the MCB and those of the RCD block.

ABB可以为客户提供完整系列的剩余电流动作保护器，包括不带过电流保护的剩余电流动作断路器（RCCB-F200系列）、带过电流保护的剩余电流动作断路器（RCBO-GSH200/GSN201/GS201/DS201/F500系列）、剩余电流动作保护模块（RCD blocks-GDA200/DDA200系列）、接地故障继电器（DIN ...

RCD blocks type B are able to provide protection in case of sinusoidal, direct pulsating, high frequency and smooth direct earth fault currents. DDA200 type B are devices to be coupled with S200 up to 63A with lower or equal rated current and together they provide protection against both earth-fault currents and overload or short-circuits.

The RCD block DDA200 series is suitable for assembly with MCBs S200 series and S300P. It assures protection against the effects of sinusoidal alternating earth fault currents, protection, against indirects contacts and additional protection against direct (with sensitivity = …

在低压电网中安装剩余电流动作保护器（residual current operated protective device，简称为RCD，以下简称剩余电流保护器）是防止人身触电、电气火灾及电气设备损坏的一种有效的防护措施。

Selective RCDs (RCBOs - RCCBs or RCD-blocks) have a delayed tripping action and are installed upstream of other rapid residual current operated circuit-breakers to guarantee selectivity and limit the power out only to the portion of the system affected by a fault.

The ABB range of AP-R anti-disturbance residual current circuit-breakers and blocks was designed to overcome the problem of unwanted tripping due to overvoltages of atmospheric or operation origin.

The first of its kind having easy access to more than 8000+ ABB Electrical products & solutions.

In the case of fault protection measures, AC systems with sockets or lighting circuits are to be provided with a Residual Current Device (RCD) with IΔn ≤ 30 mA

A residual-current device (RCD), residual-current circuit breaker (RCCB) or ground fault circuit interrupter (GFCI) [a] is an electrical safety device, more specifically a form of Earth-leakage circuit breaker, that interrupts an electrical circuit when the current passing through line and neutral conductors of a circuit is not equal (the term ...