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Air Circuit Breaker

Air Circuit Breaker

P/N & Price

Air Circuit Breakers(ACBs) - 3poles and 4poles; Rated current: 200-6300 Amperes; Voltage: 220/240Vac - 800/1140Vac; Breaking capacity (Icu): 42 - 135kA; Fixed Type and Draw out Type; Digital or LCD display.

Air Circuit Breakers-ACBs

Nader air circuit breaker series launched , was available in different series and are now classic NDW2 and NDW3 series of air circuit breakers consists of six frames: 1600A, 2000A, 2500A, 3200A, 4000A, 6300A covering uninterrupted rated current Iu up to 6300A. Nader ACBs have protection trip units fitted with advanced electronic offering bespoke solutions for control and protection and important innovations, such as the brand new intuitive operator interface allowing a complete control of the system with just a few simply keystrokes.

Main features

  • The controllers are of full range and versatile.

  • Efficient arc extinguishing and breaking.

  • High electrical life and short time tolerance ability.

  • Integrated communication network.

  • Max hight voltage AC 1140V circuit breaker.

  • Three-proofing circuit breaker, the TH (thermal-humidity) type circuit breaker can be selected to meet the three-proofing requirements, namely, moisture-proofing, mould-proofing and salt spray-proofing.

  • Convenient installation.

  • Multiple safety protection devices.


NDW2 series

NDW2-1600 (1600A frames), rated current 200A-1600A, rated operational voltage Ue AC690V, rated limit short-circuit breaking capacity Icu 65kA at AC415V.


NDW2-2000 (2000A frames), rated current 400A-2000A, rated operational voltage Ue AC690V, rated limit short-circuit breaking capacity Icu 80kA at AC415V.


NDW2-3200 (3200A frames), rated current 2000A-3200A, rated operational voltage Ue AC690V, rated limit short-circuit breaking capacity Icu 100kA at AC415V.


NDW2-4000 (4000A frames), rated current 800A-4000A, rated operational voltage Ue AC1000V, rated limit short-circuit breaking capacity Icu 100kA at AC415V.


NDW2-6300 (6300A frames), rated current 4000A-6300A, rated operational voltage Ue AC690V, rated limit short-circuit breaking capacity Icu 120kA at AC415V.


NDW3 series

NDW3-1600 (1600A frames), rated current 200A-1600A, rated operational voltage Ue AC690V. rated limit short-circuit breaking capacity Icu as follows,

  • 66kA at AC220V/230V/240V, AC380V/400V/415V.

  • 50kA at AC440V/480V, AC660V/690V.


NDW3-2500 (2500A frames), rated current 630A-2500A, rated operational voltage Ue AC1140V. rated limit short-circuit breaking capacity Icu as follows,

  • S: 66kA and H: 85kA at AC220V~415V.

  • S: 55kA and H: 66kA at AC440V/480V/660V/690V.

  • 60kA at AC800V.

  • 55kA at AC1000V.

  • 50kA at AC1140V.


NDW3-4000 (4000A frames), rated current 800A-4000A, rated operational voltage Ue AC1140V. rated limit short-circuit breaking capacity Icu as follows,

  • S: 85kA and H: 100kA at AC220V~415V.

  • S: 75kA and H: 85kA at AC440V/480V/660V/690V.

  • 75kA at AC800V.

  • 60kA at AC1000V.

  • 60kA at AC1140V.


NDW3-6300 (6300A frames), rated current 4000A-6300A, rated operational voltage Ue AC1140V. rated limit short-circuit breaking capacity Icu as follows,

  • S: 120kA and H: 135kA at AC220V~415V.

  • S: 85kA and H: 100kA at AC440V/480V/660V/690V.

  • 85kA at AC800V.

  • 66kA at AC1000V.

  • 66kA at AC1140V.

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