BGHM1L Series Plastic Case Circuit Breaker With Residual Current Protection
Data： 2021-03-12 10:32:31 Hits： 888
The circuit breaker has the characteristics of small size, high breaking, short arcing, and anti-vibration. The circuit breaker can be installed vertically (ie vertical installation) or horizontally (ie horizontal installation).
The circuit breaker cannot be reversed, that is, only 1, 3, and 5 are allowed to be connected to the power line, and 2, 4, and 6 are connected to the load line. The circuit breaker products meet the following standards:
General provisions of IEC60947-1 and GB14048.1-2006
IEC60947-2 and GB14048.2-2008 circuit breakers and Appendix B circuit breakers with residual current protection are suitable for isolation, and the symbol is expressed as.
Scope of application
BGHM1L series plastic case circuit breaker with residual current protection is one of the new circuit breakers that the company adopts advanced CADICAM/CAE design, manufacturing technology, research and development. Its rated insulation voltage is 800v, suitable for AC 50Hz. The rated working voltage is AC400V and the rated current is up to 800A for infrequent conversion and infrequent starting of the motor. The circuit breaker has overload, short circuit and undervoltage protection functions, which can protect the circuit and power supply equipment from damage. At the same time, it can provide indirect contact protection for people. It can also protect against long-term ground faults that cannot be detected by overcurrent protection and may cause fires. Hazard provides protection. When other protection devices fail, a circuit breaker with a rated residual operating current of 30mA can provide additional protection for direct contact.
Normal working environment and installation conditions
The temperature of the surrounding medium is not higher than +40℃ and not lower than -5℃; and the 24-hour average value does not exceed 35℃ (except for special orders);
The relative humidity of the installation site does not exceed 50% when the maximum temperature is +40°C; it can have a higher relative humidity at a lower temperature, such as 90% at 20C°C. For occasional condensation due to temperature changes Special measures should be taken;
Humid tropical type circuit breaker air relative humidity does not exceed 95% at +25℃; the pollution level is Ⅲ;
The installation category of the main circuit of the circuit breaker is Ⅲ, the auxiliary circuit and control circuit that are not connected to the main circuit, the installation category is ll; the breaker is suitable for electromagnetic environment A;
Humidity belt circuit breaker can withstand the influence of damp heat, salt spray and mold;
The circuit breaker should be installed in a place where there is no explosion hazard, no conductive dust, enough to corrode metal and damage insulation; in a place where there is no rain and snow;
The circuit breaker should be installed according to the product's instruction manual.
Quick selection table
Main feature
Residual current three-phase protection: BGHM1L circuit breaker realizes ground fault protection. The conventional leakage protection module with residual current protection circuit breaker has two-phase power sampling. This series of circuit breakers is three-phase. If any phase is missing, the circuit breaker will leak The protection module can still work normally;
On-site adjustable: the rated residual operating current I△n and the residual current operating time (non-delay and delay) can be adjusted on-site according to the actual situation;
Low voltage protection: When the phase voltage drops to 85V, the leakage protection module can still work normally;
With leakage alarm output function: when the residual current of the equipment or line reaches or exceeds the set value, the circuit breaker with the leakage alarm unit module outputs a passive contact signal to drive the corresponding alarm device;
The installation is interchangeable: the external dimensions are the same as those of the M1 series circuit breakers (except M1-630), and the installation has better interchangeability.
The Main Technical Parameters
