M1 series circuit breakers are mainly used for AC 50Hz (or 60Hz), rated insulation voltage 800V, rated operating voltage 690V and below, rated circuits 1250A and below in the distribution network as the distribution of power and protection of overload, undervoltage and short-circuit protection of lines and power supply equipments.
Circuit breakers with 400A shell and frame level or below can be used as the overload, undervoltage and short-circuit protection of electric motors.
The circuit breaker below 400A shell frame level can also be used as motor overload, undervoltage and short circuit protection.
It can be used for infrequent conversion of lines and infrequent starting of motors under normal conditions.
1. The circuit breaker has overload, short circuit and undervoltage protection functions, which can protect the line and power equipment from damage. At the same time, it can provide indirect contact protection for people, and can also provide protection for long-term grounding fault that cannot be detected by over-current protection, which may cause fire hazard.
2. The circuit breaker has the characteristics of small volume, high breaking height, short arcing and anti vibration.
3. The circuit breaker can be installed vertically and horizontally.
4. The circuit breaker cannot be switched in, that is, only 1, 3 and 5 are allowed as power terminals, and 2, 4 and 6 are load terminals.
5. The circuit breaker can be divided into front wiring, back wiring and plug-in wiring.
| Model | SDM1-63 | ||||
| Number of Poles | 3 | 4 | |||
| Rated Current InA | 6, 10, 16, 20, 32, 40, 50, 63 | ||||
| Rated Insulation Voltage Ui(V) | 690 | ||||
| Rated Impulse Withstand Voltage Uimp(V) | 6000 | ||||
| Rated Working Voltage Ue V | AC 400/690 | ||||
| Breaking Capacity | L | M | |||
| Ultimate Short-Circuit Breaking Capacity Icu kA | 400V | 25 | 50 | ||
| 690V | / | / | |||
| Operating Short-Circuit Breaking Capacity Icu kA | 400V | 18 | 30 | ||
| 690V | / | / | |||
| Number of Operation Cycles | Per Hour | / | |||
| Alternating Current (Electricity) | 4000 | ||||
| No Electricity | 6000 | ||||
| Power Loss W | Fixed | 20 | 25 | 33 | |
| Plug-in | 25 | 30 | / | ||
