AA1-B0-12-440-192-D
Littelfuse Inc.
The Littelfuse Inc. AA1-B0-12-440-192-D is a single-pole circuit breaker designed for panel mounting. It features a magnetic hydraulic delay mechanism.
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The BA1-B0-12-440-1C2-D is a single-pole magnetic hydraulic delay circuit breaker manufactured by Littelfuse Inc. It is rated for 4A continuous current and 277V AC voltage. The breaker uses a hydraulic-magnetic trip mechanism that provides time-delay overcurrent protection, making it well-suited for applications where momentary inrush currents could cause nuisance tripping in thermal breakers.
This circuit breaker features a panel mount design with a lever actuator. It is not illuminated. The approval agency markings include CCC, CSA, UL, and VDE, indicating compliance with major international safety standards. The breaker type is magnetic hydraulic delay which offers stable performance over a wide temperature range.
The part number BA1-B0-12-440-1C2-D identifies this as a 1-pole, 4A, 277V, panel-mount hydraulic-magnetic circuit breaker from the Littelfuse BA1 series. It is intended for use in industrial control panels, power distribution, and equipment protection where reliable overcurrent interruption is required.
The current rating is 4A.
The voltage rating is 277V.
This circuit breaker has 1 pole.
It is a magnetic (hydraulic delay) circuit breaker.
The actuator is a lever.
This circuit breaker is panel mount.
It is approved by CCC, CSA, UL, and VDE.