LMW1 Series Air Circuit Breaker(ACB) 630-6300A
Rated current:630A~6300A
Current rank: 1600、2000、3200、4000、6300
Rated working voltage: AC400V、AC690V 50Hz
Rated insulation voltage: AC1000V
Number of Poles:3P、4P
Installation method: Drawer type,Fixed type
Wiring method: horizontal wiring
Breaking capacity: M=Standard, H=intellgence
Operation mode: electric operation, manual operation
Tripping type: intelligent controller, under-voltage tripper, shunt release tripper
Pollution level:3
Standard: IEC 60947-2
The LMW1 universal circuit breaker (hereinafter referred to as the circuit breaker) is suitable for AC 50Hz/60Hz power distribution networks with rated operating voltages of 400V, 690V and below, and rated currents up to 6300A and below. It is mainly used for power distribution, power supply, and generation protection, protecting lines and power equipment from overload, under-voltage, over-voltage, current-voltage imbalance, short circuits, and grounding/leakage faults.Through load monitoring and regional interlocking functions, it enables the rational operation of the power grid. It can also be used to measure grid parameters such as current, voltage, power, frequency, energy, demand, and harmonics at grid nodes. The circuit breaker can also be directly used for overload, under-voltage, and short circuit protection of motors and generators. The core component of the circuit breaker uses an intelligent controller with precise selective protection, avoiding unnecessary power outages and improving power supply reliability, continuity, and safety. It also features an open communication interface, enabling remote control functions to meet the requirements of control centers and automation systems.
Technical Data
| Rated current | 2000 | 2000H | 3200 | 3200H | 4000 | 4000H | 6300 |
|---|---|---|---|---|---|---|---|
| Rated voltage | AC 400/690 | ||||||
| Frequency | 50/60Hz | ||||||
| Poles | 3P、4 | ||||||
| Rated impulse withstand voltage | AC 12kV | ||||||
| Rated voltage of insulation | AC 1000V | ||||||
| Icu AC400V | 80 | 100 | 85 | 110 | 85 | 110 | 120 |
| Icu AC690V | 55 | 60 | 55 | 80 | 55 | 80 | 85 |
| Ics AC400V | 50 | 65 | 65 | 85 | 65 | 85 | 100 |
| Ics AC690V | 35 | 55 | 42 | 60 | 42 | 60 | 75 |
| Icw/1s AC400V | 50 | 65 | 65 | 85 | 65 | 85 | 100 |
| Icw/1s AC690V | 35 | 50 | 50 | 60 | 50 | 60 | 75 |
| Installation method | Fixed type 、 Drawer type | ||||||
Introduction Of The Structure

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