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Details
ConditionNew
Description
An Air Circuit Breaker (ACB) is a type of circuit breaker that operates in the air as the arc extinguishing medium. It is used to protect electrical systems from overloads, short circuits, and ground faults in medium and high-voltage applications.
Key Features of Air Circuit Breaker
Operating Medium:
Uses atmospheric air for arc extinguishing.
No gas or oil required, making it simple and eco-friendly.
Voltage Range:
Typically used in systems with voltages up to 15kV.
Common in low and medium-voltage applications (e. g. , 690V to 6.6kV).
Current Ratings:
Available in a wide range, typically from 630A to 6300A.
Breaking Capacity:
Designed to handle high fault currents (e. g. , 50kA or more).
Control and Safety Features:
Comes with advanced protection mechanisms like overcurrent, under-voltage, and earth fault protection.
Can include electronic trip units for precise settings.
Type of Installation:
Can be mounted in panels or enclosures.
Suitable for industrial, commercial, and power plant applications.
Components of an Air Circuit Breaker
Frame: Provides structural support to the breaker.
Contacts:
Main contacts carry the load current.
Arcing contacts manage the arc during fault interruption.
Arc Chutes: Extinguish the arc by splitting it into smaller arcs.
Trip Unit: Automatically trips the breaker during a fault.
Closing Mechanism: Operates the breaker (manual, motorized, or spring-loaded).
apacity 4000 Ampere
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Marhaba traders
Member since Aug 2018
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Location
Pakistan
Ad id 1095760504
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