Model. YXM1 Moulded Case Circuit Breaker Series are suitable for distribution lines with AC 50Hz, rated operating voltage 690V and below, rated operating current 1600A with the function of infrequent conversion and motor infrequent starting. The products have protection function of overload, short circuit and under voltage, which can protect the line and power supply equipment from damage.
YXM1 Series conform to the standard: IEC60947-2, GB14048.2.
| Model | Current shell frame (A) |
Rated current (A) |
Rated operational voltage (V) |
Rated insulation voltage (V) |
Rated limited short-circuit breaking capacity 400V/690V (kA) |
Rated operation short-circuit breaking capacity 400V/690V (kA) |
Number of poles | Altitude (≤m) |
Working temperature (℃) |
Mechanical service life (times) |
Electrical service life (times) |
| YXM1-125L | 125 | 16/ 20/ 25/ 32/ 40/ 50/ 63/ 80/ 125 | 400/415/690 | 690 | 35/8 | 17.5/4 | 3 | 2000 | -5～+40 | 20000 | 8000 |
| YXM1-125M | 125 | 50/10 | 25/5 | 3/ 4 | 2000 | -5～+40 | 20000 | 8000 | |||
| YXM1-125H | 125 | 85/20 | 42.5/10 | 3 | 2000 | -5～+40 | 20000 | 8000 | |||
| YXM1-250L | 250 | 125/ 160/ 180/ 200/ 250 | 400/415/690 400/415/690 400/415/690 |
690 | 35/8 | 17.5/4 | 3 | 2000 | -5～+40 | 20000 | 8000 |
| YXM1-250M | 250 | 50/10 | 25/5 | 3/ 4 | 2000 | -5～+40 | 20000 | 8000 | |||
| YXM1-250H | 250 | 85/20 | 42.5/10 | 3 | 2000 | -5～+40 | 20000 | 8000 | |||
| YXM1-400L | 400 | 250/ 315/ 350/ 400 | 400/415/690 400/415/690 400/415/690 |
690 | 50/10 | 25/5 | 3/ 4 | 2000 | -5～+40 | 10000 | 7500 |
| YXM1-400M | 400 | 65/10 | 32.5/10 | 3/ 4 | 2000 | -5～+40 | 10000 | 7500 | |||
| YXM1-400H | 400 | 100/20 | 50/10 | 3/ 4 | 2000 | -5～+40 | 10000 | 7500 | |||
| YXM1-630L | 630 | 400/ 500/ 630 | 400/415/690 400/415/690 400/415/690 |
690 | 50/10 | 25/5 | 3/ 4 | 2000 | -5～+40 | 10000 | 7500 |
| YXM1-630M | 630 | 65/10 | 32.5/10 | 3/ 4 | 2000 | -5～+40 | 10000 | 7500 | |||
| YXM1-630H | 630 | 100/20 | 50/10 | 3/ 4 | 2000 | -5～+40 | 10000 | 7500 | |||
| YXM1-800M | 800 | 630/ 700/ 800 | 400/415/690 400/415/690 |
690 | 75/30 | 37.5/15 | 3/ 4 | 2000 | -5～+40 | 5000 | 2500 |
| YXM1-800H | 800 | 100* | 50* | 3 | 2000 | -5～+40 | 5000 | 2500 | |||
| YXM1-1250L | 1250 | 800/ 1000/ 1250 | 400/415/690 | 690 | 100/70 | 50/35 | 3/ 4 | 2000 | -5～+40 | 5000 | 2500 |
| YXM1-1250M | 1250 | 400/415/690 | 690 | 40/10 | 20/10 | 3/ 4 | 2000 | -5～+40 | 5000 | 2500 |