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The CA1-B4-11-630-121-MJ is a robust single-pole circuit breaker manufactured by Littelfuse Inc. Designed for reliable overcurrent protection, this component delivers a 30A current rating with a maximum voltage rating of 480V. The breaker utilizes a magnetic trip mechanism with a hydraulic delay to prevent nuisance tripping during transient inrush currents while ensuring rapid response to sustained faults.
Engineered for industrial and commercial applications, this unit supports panel mount installation for secure integration into control panels and distribution boards. The lever actuator allows for manual reset and clear visual indication of the open/closed state. It carries multiple international safety certifications including UL489, CSA, TUV, and CCC, making it suitable for global deployment in demanding electrical environments.
Constructed to meet rigorous industry standards, the CA1-B4-11-630-121-MJ ensures consistent performance under continuous operation. Its compact form factor and standardized mounting interface simplify system design and maintenance workflows for engineers specifying protective devices for AC power circuits.
The rated current is 30 A.
The rated voltage is 480 V.
It has a magnetic (hydraulic delay) trip characteristic.
It is a 1-pole circuit breaker.
It is certified to CCC, CSA, TUV, and UL489 standards.
It is designed for panel mount installation.
It uses a lever actuator.