An RCBO or residual-current operated circuit breaker with overload protection combines the functions of an RCCB and an MCB in one device. RCCBs detect earth faults and trip the circuit, while MCBs protect against overcurrent and short-circuit faults. RCBOs incorporate both of these protection mechan

The distribution box produced by the distribution box manufacturer needs to pay attention to safety knowledge during the installation process. So what is the security knowledge about it? Let me give you a brief explanation today!In fact, when using it, the most important thing to pay attention to is

1, in accordance with the electrical installation specifications, the zero and ground lines in the distribution box should never be connected together zero and ground.2, if the zero line and ground are connected together, the leakage cannot be detected, there is a safety hazard to, will also lead to

1、The wire should be connected to the designated terminal block correctly in strict accordance with the drawing markings.2、WireA. The wire cross-section of the main circuit is marked in accordance with the drawing, the wire cross-section of the control circuit is 1mm2, and the wire cross-section of

Circuit breaker is a switching device that can close, carry and open the current under normal circuit conditions and can close, carry and open the current under abnormal circuit conditions within a specified period of time. The circuit breaker can be used to distribute electrical energy, start async

Nowadays, you can often see the figure of the distribution box in daily life production, especially on many construction sites, more or less always have the existence of the distribution box. However, what is worrying is that the use of many distribution boxes is now not standardized, and many peopl

① What is the difference between 1P, 1P+N and 2P MCB? ② detailed explanation of the circuit breaker 1P, 1P + N, 2P, 3P, 3P + N, 4P!③ What appliances are in use for 1P, 2P and 3P? What is the difference between them?

1, the general switch of the household distribution box can generally choose double-pole 32-63A small air switch or isolation switch.2、Lighting circuits generally use 10-16A small air switches.3、Socket circuits generally choose 16-20A air switches.4. air conditioning circuits generally choose 16-25A

Refusal to close occurs basically during the closing operation and reclosing process. This kind of fault is more hazardous.For example, in the case of an accident requiring emergency input of backup power, if the backup power circuit breaker refuses to close, it will expand the accident. Determine t

1、It should be able to monitor the integrity of the control circuit protection device and its tripping and closing circuit to ensure the normal operation of the circuit breaker.2, should be able to indicate the normal closing and breaking position of the circuit breaker state, and in the automatic c

In the daily time, how should we prevent the temperature of the distribution box is too high?At the time of purchase, we can try to use the louvers on both sides, and its box is not completely separated. In this way, it will make the air convective heat formation. There is also the need to pay atten

1. In common parlance, the distribution of electrical energy is called the distribution box. Mainly used for the control of electrical equipment, power distribution, overload, short circuit, leakage of the line to play a protective role. Distribution boxes are installed in various places, such as sc