RCCBs are used in all systems up to 240/415 V AC. Devices of type AC trip in the event of sinusoidal AC residual currents, type A also trips in the event of pulsating DC residual currents.

In addition, RCCBs type F also detect residual currents with mixed frequencies up to 1 kHz.

RCCBs with a rated residual current of maximum 30 mA are used for personnel, material and fire protection, as well as for protection against direct contact. RCCBs with a rated residual current of 10 mA are primarily used in areas that represent an increased risk for personnel.

Since the introduction of DIN VDE 0100-410, all socket outlet current circuits up to 20 A must also be fitted with residual current protective devices with a rated residual current of max. 30 mA. This also applies to outdoor electrical circuits up to 32 A for the connection of portable equipment.

Devices with a rated residual current of maximum 300 mA are used as preventive fire protection in case of insulation faults. RC-CBs with a rated residual current of 100 mA are primarily used outside Europe.

RC units are combined with miniature circuit breakers with A, B, C and D characteristics, provided that these are available in the MCB range. The two components are simply plugged together without the need for any tools.

RCBOs are a combination of an RCCB and a miniature circuit breaker in a compact design for personnel, fire and line protection.

The Siemens portfolio of protective devices has been proving itself in the field for many years. This range of fuses, miniature circuit breakers and residual current protective devices has been expanded to include AFDDs (arc fault detection devices). These AFDDs detect arcing faults caused by serial faults or loose contacts or as a result of insulation faults that enable contact between phase conductors or between phase and protective conductors. They therefore offer extremely effective protection against fires started by electrical faults.

剩余电流断路器
在所有系统中使用最多240/415伏交流电。在交流交流残余电流的情况下，交流跳闸的装置，当脉动直流残余电流时，A型跳闸。
此外，F型剩余电流保护检测混合频率达1千赫。
以额定剩余电流最大30毫安的产品用于人员、材料、消防、以及直接接触防护。以额定剩余电流10毫安的产品主要用于地区代表人员的风险增加。
由于DIN VDE 0100-410介绍，所有插座电流电路高达20也必须安装剩余电流保护装置额定剩余电流最大30毫安。这也适用于户外电路多达32 A的便携式设备的连接。
在绝缘故障情况下，额定额定电流为300 mA的设备可作为预防性防火措施。额定电流为100 mA的RC CBS主要用于欧洲以外地区。
钢筋混凝土单元结合微型断路器A、B、C、D的特点，但这些在小型断路器适用范围。这两个组件简单地连接在一起，不需要任何工具。
RCBO是结合了动作和紧凑的设计人员的一个小型断路器、消防及线路保护。
西门子的保护装置组合在这个领域已经证明了很多年了。本系列熔断器、小型断路器、剩余电流保护器已扩大到包括afdds（电弧故障检测装置）。这些afdds检测电弧故障引起的连续故障或接触不良或因绝缘故障，使接触之间的相导体之间或相位和保护导体。因此，它们能有效防止电气故障引发的火灾。