127-T12-H-20A

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A circuit breaker is a device that protects an electrical circuit from damage caused by overload or short circuit. The 127-T12-H-20A is a type of circuit breaker used in many applications. In this article, we will discuss the application field and working principle of the 127-T12-H-20A circuit breaker.

Application Field of the 127-T12-H-20A Circuit Breaker

The 127-T12-H-20A circuit breaker is a one-pole, thermal-magnetic circuit breaker used for the control and protection of small loads. It is designed for residential, commercial and industrial applications. This circuit breaker is designed to provide reliable protection from overloads, short-circuits and ground-faults. The 127-T12-H-20A is UL 1077 Standard and CSA Certified to C22.2 No. 5-03.

The 127-T12-H-20A circuit breaker is suitable for use with residential and commercial loads such as lighting fixtures, air conditioning and kitchen appliances. It also meets National Electric Code (NEC) and Canadian Electric Code (CEC) requirements for circuit breakers. This circuit breaker is suitable for air conditioning circuits, pumps, motors and HVAC systems. This circuit breaker can be used in office buildings, shopping malls, schools, hospitals and residential buildings.

Working Principle of the 127-T12-H-20A Circuit Breaker

The 127-T12-H-20A circuit breaker is a one-pole, thermal-magnetic circuit breaker. It has a thermal-magnetic trip unit that trips the circuit breaker when a fault current exceeds the pre-set trip level. The thermal-magnetic trip unit uses a combination of thermal and magnetic forces to quickly trip the circuit breaker. The thermal element uses a bimetallic strip that reacts to current. If the current exceeds the specified level, the bimetallic strip heats up, causing the breaker to trip. The magnetic element uses an electromagnet to detect the current. When the current exceeds the pre-set level, the electromagnet closes the contacts of the circuit breaker, which trips the breaker.

The 127-T12-H-20A is designed to provide reliable protection from overloads, short-circuits and ground-faults. The circuit breaker has an adjustable trip setting so that the correct current level can be set to trip the breaker. This circuit breaker also has a reset button which allows the circuit breaker to be reset after it has tripped.

The 127-T12-H-20A circuit breaker is a reliable and cost-effective device that can be used to provide safe and reliable protection for small electrical circuits. It is ideal for residential, commercial and industrial applications and meets National Electric Code (NEC) and Canadian Electric Code (CEC) requirements for circuit breakers.

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