YFM6 series plastic shell type circuit breaker (hereinafter referred to as circuit breaker) is one of the new circuit breakers designed and developed by the company comprehensively using international advanced technology. Its rated insulation voltage is 1000V, suitable for AC 50Hz or 60Hz, rated working voltage to 400V, rated current to 1250A distribution network circuit,used to distribute power and protect lines and power equipment from overload, short circuit,undervoltage and other faults damage. At the same time, it can also be used as the motor's infrequent starting and overload, short circuit, undervoltage protection.
According to its rated limit short-circuit breaking capacity, the circuit breaker is divided into L type (standard type), M type(higher score type), H type (high score type) three categories.
The circuit breaker has the characteristics of small volume, high breaking and short flying arc.Circuit breaker product standard: in line with IEC60947-2,GB14048.2-2008.

1、Altitude up to 2000m;
2、Ambient medium temperature should be within-5℃ to+40℃(+45℃ for marine products);
3、It can withstand the effect of damp air;
4、It can withstand the effect of moulds;
5、It can withstand the effect of nuclear radiation;
6、The max inclination is 22.5° .

7、It still can work reliably when the ship subjects to normal vibration;

8、It can still work reliably if the product subjects to the earthquake (4g).

9、Places where the surrounding medium is free from explosion danger, and far away from gas or conductive dust that would erode the metal or destroy the insulation;
10、Keep away from rain or snow.