air circuit breaker


Also found in: Acronyms.

air circuit breaker

A type of circuit breaker utilized in commercial buildings at medium voltage; the word “air” refers to the insulating medium between contacts in the circuit breaker.
References in periodicals archive ?
Vacuum Circuit Breakers, Air Circuit Breakers, Molded Case Circuit Breakers, Miniature Breakers, Earth Leakage Breakers, Magnetic Contactors, Relays and Starters instruments.
Items enjoying particularly strong demand in 2014 were medium voltage vacuum circuit breakers, while in 2013 fast-selling products were air circuit breakers, moulded case circuit breakers and magnetic contactors, said LSIS head of Gulf sales Mohamed Rashid Manoly.
Discussing the efficacy of air circuit breakers and MCCBs, Manoly said: "These products are important for the protection of downstream devices and, most important, human lives.
Further, the company stated that it will add two product lines, paralleling switchgear equipment for mission-critical applications for data centres, financial systems and hospitals to its local manufacturing operations and EntelliGuard low-voltage air circuit breakers for industrial and commercial equipment and personnel protection.
LS Industrial Systems offers the highest quality Molded Case Circuit Breakers, Earth Leakage Circuit Breakers, Air Circuit Breakers, Contactors, Overload Relays, Manual Motor Starters, Vacuum Circuit Breakers, Vacuum Interrupters, Vacuum Contactors, Power Fuses, Load Break Switches, Intergrated Protection and Monitoring Equipment, Electronic Meters, Switch Gears, Power Transformers, Oil Immersed Transformers, Cast Resin Transformers, Busway Systems, and Variable frequency Drives.
Hager air circuit breakers (ACBs) have high dynamic and thermal stability.