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 typeintelligent controller, under-voltage tripper, shunt release tripper
Pollution level:3
Standard: IEC 60947-2

LMW1 Series Universal Circuit Breaker Instruction Manual

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

ACB 6300A

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