The 1250A 3P MCCB circuit breaker is high-tech products in 21st century with advanced design, high performance, pleasant apprearance and delicate dimension.
Meanwhile, they are intelligent controlled and developed with microelectronic technoloigy.
This 1250A 3P MCCB circuit breaker is used in the electrical system of AC 50 Hz, related voltage of up to 690V, rated current of up to 800A to prevent the system from overload, short-circuit and under-voltage and control the infrequent operation of motor
Meanwhile, they are intelligent controlled and developed with microelectronic technoloigy.
This 1250A 3P MCCB circuit breaker is used in the electrical system of AC 50 Hz, related voltage of up to 690V, rated current of up to 800A to prevent the system from overload, short-circuit and under-voltage and control the infrequent operation of motor
| Type | UKM30-1250S | UKM30-1600S | UKM30-2000S | |||
| Rated current In(A) | 630, 700, 800, 1000, 1250 | 800, 1000, 1250, 1400, 1600 | 1250, 1400, 1600, 1800, 2000, 2500 | |||
| Number of poles | 3 | 4 | 3 | 4 | 3 | |
| Rated voltage Ui(V) | AC800 | AC800 | AC800 | |||
| Arc distance (mm) | ≤120 | ≤120 | ≤120 | |||
| Rated ultimate breaking capitily Icu/Ics(KA) | AC690V | 25 | 30 | 35 | ||
| AC400V | 80 | 80 | 100 | |||
| Rated service breaking capitily Icu/Ics(KA) | AC690V | 20 | 20 | 35 | ||
| AC400V | 40 | 40 | 50 | |||
| Dimensions (mm) | a | 263 | 333 | 263 | 333 | 420 |
| b | 376 | 276 | 375 | |||
| c | 395 | 395 | 462 | |||
| Connection method | front connection, rear connection, withdrawal connection | |||||
| Accessories | Internal | under-voltage trip,shunt trip. alarm contact | ||||
| External | electrical operating mechanism, rotary handle | |||||