Shop air circuit breakers, miniature circuit breakers, moulded case circuit breakers, RCBOs and residual current devices, all engineered for reliable protection across industrial and commercial switchboards. Trusted by electrical contractors and panel builders Australia-wide.
NAW Controls’ Circuit Breakers range brings together every type of overcurrent and fault protection device needed for a compliant switchboard, from air circuit breakers for high-current main incoming protection through to miniature circuit breakers (MCB) and moulded case circuit breakers (MCCB) for downstream sub-circuits. Residual current devices (RCD) and RCBOs add earth leakage protection, while surge protection guards sensitive equipment against transient voltage spikes.
Each breaker type is selected to meet relevant AS/NZS wiring and protection standards, giving switchboard builders and electrical contractors a single reference point for specifying protection devices across a project. Browse by breaker type below to find the right current rating, breaking capacity and pole configuration for your application.
An air circuit breaker provides overcurrent and short-circuit protection for high-current electrical circuits. It uses compressed air or atmospheric pressure to extinguish the electrical arc created when the contacts open, safely isolating the circuit during a fault.
Air circuit breakers are primarily used in industrial plants, large commercial buildings and power stations, acting as the main incoming protection for switchboards where they manage large power loads exceeding the capacity of standard residential or light commercial equipment.
Air circuit breakers are generally used for much higher current ratings and offer more advanced adjustment features for selective coordination. They’re often designed to be maintainable and can be fitted with accessories to monitor the health of the electrical system.
How do I choose the right air circuit breaker for my project?
Selecting the correct unit involves evaluating the nominal current, the required breaking capacity in kiloamps (kA), and whether a fixed or draw-out type is needed. Our team can help match these specifications to your switchgear design.
Are NAW Controls’ air circuit breakers compliant with Australian standards?
Yes, our air circuit breaker range is selected to meet relevant Australian electrical standards for main switchboard and industrial distribution applications, giving you confidence in both compliance and long-term performance.
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