YFM2E Series Molded Case Circuit Breakers (Electronic)
YFM2E series Molded Case Circuit Breakers protect lines and power equipment from overloadshort circuit, ground and other faults. This series controller has the characteristics of stableperformance, accurate and reliable, compact size, compact structure, reasonable design andeconomical application.
Specification Parameter
Rated parameter
1.Rated voltage:380V/220V three-phase four-wire.
2.rated frequency:50Hz
3.shell and frame grade current:125A,250A,400A,630A,800A.
1.the normal working environment temperature is -5°℃~+40℃,the 24-hour average does not exceed 35℃
2.the relative humidity of the air does not exceed 50%.
3.Pollution level:Level 3.
4.installation category:IⅢ
Product configuration information
Frame current Rated current Mutual inductor Executive mechanism 125A 32A 32A 125A 63A 63A 125A 125A 250A 250A 250A 250A 400A 400A 400A 400A 630A,800A 630A 630A 630A,800A 800A 800A
Functional model classification
| Item | Function description | Type classification | |||
| Common type | Communication type | ||||
| M | M L | M G | E | ||
| Panel | knob | √ | √ | √ | √ |
| No knob | √ | ||||
| Feature | Overload long delay protection | √ | √ | √ | √ |
| Short circuit delay protection | √ | √ | √ | √ | |
| Short circuit instantaneous protection | √ | √ | √ | √ | |
| Ground protection | √ | √ | |||
| Overload pre-alarm | √ | √ | √ | √ | |
| Overloading heat memory | √ | √ | √ | √ | |
| Short circuit short delay thermal memory | √ | √ | √ | √ | |
| Residual current protection | √ | √ | |||
| Current LED indicator function | √ | √ | √ | √ | |
| Shunt excitation function | √ | √ | √ | √ | |
| Communication function | √ | ||||
Outline And Mounting Dimensions
| Model number | Overall dimension | Mounting dimension | ||||||||||||
| Front wiring | ||||||||||||||
| W | L | H | W1 | L1 | H1 | H2 | H3 | L2 | A | B | 中d | |||
| 3P | 4P | 3P | 4P | |||||||||||
| YFM2E-125 | 92 | 122 | 150 | 87 | 60 | 255 | 110 | 24 | 24 | 134 | 30 | 60 | 129 | 4 |
| YFM2E-250 | 105 | 142 | 165 | 95 | 70 | 365 | 110 | 24 | 24 | 144 | 35 | 70 | 126 | 5 |
| YFM2E-400 | 150 | 198 | 257 | 112 | 87 | 457 | 150 | 44 | 44 | 225 | 47 | 94 | 194 | 7 |
| YFM2E-630 | 180 | 270 | 112 | 116 | 370 | 150 | 44 | 44 | 234 | 58 | 116 | 200 | 7 | |
| YFM2E-630-800 | 210 | 280 | 280 | 121 | 140 | 480 | 155 | 44 | 44 | 243 | 70 | 140 | 243 | 7.5 |
