AA1-B0-34-620-132-C
Littelfuse Inc.
The Littelfuse Inc. AA1-B0-34-620-132-C is a single-pole circuit breaker designed for panel mounting. It features a magnetic hydraulic delay mechanism and a 20A current rating.
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The AA1-B2-26-620-3D1-C is a single-pole circuit breaker manufactured by Littelfuse Inc. Designed for electrical circuit protection, this component provides overcurrent safeguarding through a magnetic hydraulic delay mechanism. It is rated for a continuous current of 20 amperes and supports operating voltages up to 277 volts.
Mechanical specifications include a lever-style actuator for manual switching and a panel mount configuration. The unit does not feature integrated illumination. It carries approval certifications from UL, CSA, and CCC, ensuring compliance with recognized safety standards for industrial and commercial electrical systems.
This breaker is suitable for applications requiring reliable overcurrent protection in control panels or distribution boards. The hydraulic delay characteristic helps prevent nuisance tripping during temporary inrush currents while maintaining fast response to sustained fault conditions. Engineers can integrate this component into designs needing standardized panel installation and verified agency approvals.
The circuit breaker has a current rating of 20A.
The maximum voltage rating is 277V.
This breaker has one pole.
It uses a lever actuator.
No, it does not include illumination.
It supports panel mounting.
It is approved by CCC, CSA, and UL.