8345-B03A-T3T2-DB1B2C-30A

Circuit breakers protect an electrical circuit from damage caused by overload or short circuit. 8345-B03A-T3T2-DB1B2C-30A is an example of a compact, 3 pole, thermal and magnetic tripping circuit breaker.

Application Field

8345-B03A-T3T2-DB1B2C-30A are typically used for residential and light industrial applications. It is commonly installed to protect single-phase circuits, and can be used in tandem with another circuit breaker for 3-phase systems. It can be used in circuits of up to 30 amps, and the operating temperature range is from -25°C to +50°C.

8345-B03A-T3T2-DB1B2C-30A is also UL listed, meaning it meets the UL 489 standard for safety. This standard is designed to protect the circuit in the event of an overload or short circuit and prevent fire hazard.

Working Principle

8345-B03A-T3T2-DB1B2C-30A has both an adjustable thermal and magnetic trip feature. The thermal trip reacts quickly to an overload, while the magnetic trip provides long-term protection against short circuits.

The adjustable thermal trip component senses current and temperature, and when the current exceeds its rating, it trips. The magnetic component also activates when the current reaches a certain point, and if that current is not reduced, it trips.

This circuit breaker has a test switch that can be used to test that the circuit breaker is working correctly. The test switch can also be used to manually trip the breaker if the need arises.

Conclusion

8345-B03A-T3T2-DB1B2C-30A is a compact, 3 pole, thermal and magnetic tripping circuit breaker that is designed for residential and light industrial applications. It has both an adjustable thermal and magnetic trip feature that protects the circuit from overload or short circuit. This circuit breaker is UL listed, meaning it meets the UL 489 standard for safety.