Premium Air Circuit Breaker Solutions for Industrial Power Distribution

Shihlin Electric's 4000A air circuit breaker (ACB) delivers superior circuit protection with intelligent controller options, draw-out convenience, and multi-voltage ratings for demanding industrial applications.

Air Circuit Breaker - Shihlin Electric Air Circuit Breaker BW-4000
  • Air Circuit Breaker - Shihlin Electric Air Circuit Breaker BW-4000
  • Shihlin Electric Air Circuit Breaker BW-4000

Air Circuit Breaker

BW-4000

Rated Current 4000A

Product information

Model

HS

HN

Icu / Ics (kA)

690V

65 / 50

65 / 65

380/400/415V

100 / 65

100 / 100

240V

100 / 65

100 / 100

Icw (kA), 1 sec

400/415V

65

85

690V

65

75

Features

  • Mounting type: Draw-out type
  • Operation mode: Electric and manual operation
  • Number of poles: 3 and 4
  • Tripping categories: Intelligent controller, undervoltage release, and shunt release
  • Controller options: XSIC-A, XSIC-P, DIC-A and DIC-H; functions depend on the selected controller
  • Undervoltage release: Instantaneous or time-delay type

Specification

  • Standard: IEC 60947-2
  • Mounting type: Draw-out type
  • Frame size: 4000AF
  • Rated current: 4000A
  • Pole: 3P / 4P
  • Frequency: 50 / 60Hz
  • Rated voltage Ue: 690V AC
  • Insulation voltage Ui: 1000V AC
  • Rated impulse withstand voltage Uimp: 12kV
  • Neutral rated current: 100% In
  • Maximum total breaking time: 40ms
  • Maximum closing time: 80ms
  • Dimensions (H × W × D, mm):
  • 3P: 430 × 465 × 466
  • 4P: 430 × 580 × 466
  • Mechanical endurance with maintenance: HS: 20000; HN: 20000 operations
  • Mechanical endurance without maintenance: HS: 10000; HN: 10000 operations
  • Electrical endurance with maintenance: HS: 12000; HN: 12000 operations
  • Electrical endurance without maintenance: HS: 6000; HN: 6000 operations
  • HS type: 400V and 690V ratings are marked on the nameplate; other listed voltage ratings are for reference.
  • Operating temperature: -5°C to +40°C
  • Installation altitude: ≤ 2000m
  • Pollution degree: 3
Certification
Files Download
Related Products
Air Circuit Breaker - Shihlin Electric Air Circuit Breaker BW-4000
Air Circuit Breaker
BW-4000

Rated Current 4000A

Details
Air Circuit Breaker - Shihlin Electric Air Circuit Breaker BWA-2500
Air Circuit Breaker
BWA-2500

Rated Current from 400 to 2500A

Details
Air Circuit Breaker - Shihlin Electric Air Circuit Breaker BW-3200
Air Circuit Breaker
BW-3200

Rated Current from 2000 to 3200A

Details

Applications

  • Power distribution and circuit protection against overloads, short circuits, undervoltage and ground faults (depending on the configured releases and controller).

Shihlin All Product Catalog

Download Shihlin All Product Catalog for more details.

How can we ensure reliable power distribution protection for our high-capacity production equipment without frequent maintenance interruptions?

Shihlin Electric's 4000A air circuit breaker features a convenient draw-out design that allows quick replacement and maintenance without disrupting your entire electrical system. Combined with intelligent controller options (XSIC-A and XSIC-P) that provide real-time monitoring and protection, you can maintain continuous production while ensuring your equipment stays protected. Our 60+ years of manufacturing expertise guarantees the stability and reliability your factory demands.

Engineered with Shihlin Electric's 60+ years of OEM/ODM expertise, the 4000A air circuit breaker combines Japanese assembly techniques with high-stability components to ensure stable, dependable performance in critical industrial applications. The draw-out design facilitates easy installation and maintenance, reducing downtime and operational costs. Whether protecting factory automation systems, energy management infrastructure, or complex machinery integrations, this circuit breaker provides the advanced protection and control precision that industrial manufacturers and system integrators require to maximize efficiency and ensure continuous operational reliability.