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Air Circuit Breaker 4012

Air Circuit Breaker 4012

Many new standard features include RMS sensing, ground-fault detection, real-time state monitoring, bidirectional communications, control functions, under-voltage dropout, under-voltage lockout, power-up trip, charging motor protection and more.

Air Circuit Breaker 4012

Electronic Over Current Protection

By integrating electronic over current protection in the air circuit breakers, L3Harris eliminates the need for costly over current assemblies. This flexibility provides simplified ordering, application versatility, reduced parts inventory and reduced maintenance, resulting in manpower savings.

Featured News

Usv boat glides across water

Press release | 09. 11. 2025

L3Harris Successfully Demonstrates Electronic Warfare Technology in the UK

L3Harris Technologies successfully demonstrated a new electronic warfare (EW) capability at the Defence and Security Equipment International event, highlighting how the technology can help U.K. and NATO forces meet the global need for joint, all-domain, collaborative operations.

Usv boat glides across water

Press release | 09. 11. 2025

L3Harris Successfully Demonstrates Electronic Warfare Technology in the UK

T-AGOS-25 class ocean surveillance ship

Press release | 09. 02. 2025

L3Harris Secures Contract for the US Navy’s New Ocean Surveillance Shipset

VAMPIRE live fire demonstration

Editorial | 08. 29. 2025

L3Harris Launches Counter-Unmanned Systems Initiative

IVER sits on stand around a dock

Editorial | 07. 29. 2025

Engagement Superiority: How L3Harris’ Iver AUVs are Establishing the Hybrid Undersea Fleet

Data represented with blue lights

Press release | 05. 29. 2025

L3Harris Receives Contract to Develop Next-Generation Security Processor for US Government

Resources

  • ACB-4012 Air Circuit Breaker Data Sheet

    ACB-4012 Air Circuit Breaker Data Sheet

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