YFM1LE Series Leakage Circuit Breaker
YFM1LE series residual current circuit breaker (hereinafter referred to as circuit breaker)mainly suitable for AC 50Hz, rated voltage of 400V, rated current to 800A distribution network, used to provide indirect contact protection for people, also can be used to prevent the equipment insulation damage, ground fault current caused by the fire hazard.
Specification Parameter
| Product model | Rated current A | Rated short circuit breaking capacity(kA) | Rated residual action current | Rated inactive current | |||||||
| Icu | Ics | I△n(mA) | I△n(mA) | ||||||||
| YFM1LE-125L | 16,20,25,32,40 50,63,80,100, 125 | 26.5/0.25 | 35/0.25 | 100/300/500 | I△n70% | ||||||
| YFM1LE-125M | 38/0.25 | 50/0.25 | |||||||||
| YFM1LE-125H | 50/0.25 | 70/0.25 | |||||||||
| YFM1LE-250L | 100,125,160, 180,200,225, 250 | 26.5/0.25 | 35/0.25 | ||||||||
| YFM1LE-250M | 38/0.25 | 50/0.25 | |||||||||
| YFM1LE-250H | 50/0.25 | 70/0.25 | |||||||||
| YFM1LE-400L | 225,300,315,350,400 | 38/0.25 | 50/0.25 | 100/300/500 | |||||||
| YFM1LE-400M | 50/0.25 | 70/0.25 | |||||||||
| YFM1LE-630L | 400,500,630 | 38/0.25 | 50/0.25 | ||||||||
| YFM1LE-630M | 50/0.25 | 70/0.25 | |||||||||
| YFM1LE-800L | 630,700,800 | 38/0.25 | 50/0.25 | ||||||||
| YFM1LE-800M | 50/0.25 | 70/0.25 | |||||||||
Remaining current protection operation time
| Residual current | △n | 21△n | 51△n | 10l△n | |||||||
| Non-delay type | Max disconnect time(s) | 0.2 | 0.1 | 0.04 | 0.04 | ||||||
| Delayed type | Max disconnect time(s) | 0.5/1.15/2.15 | 0.35/1/2 | 0.25/0.9/1.9 | 0.25/0.9/1.9 | ||||||
| Limiting non-drive time △t(s) | - | 0.1/0.5/1 | - | - | |||||||
Rated operating voltage:400V
Rated insulation voltage:800V
Rated impulse withstand voltage:8kv
Rated frequency:50Hz
Number of poles:3P,4P
Product Advantage
YFM1LE can be used to distribute electrical energy and protect the overload and short circuit of the line and power supply equipment, and can also be used as the infrequent conversion of the line and the infrequent start of the motor.
The circuit breaker can work normally when either phase of the three-phase power supply is missing. The product conforms to the standard:GB14048.2,IEC60947-2
Outline And Mounting Dimensions
