APL111-1REC4-2920-17

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Circuit breakers have been around for around 100 years since they have been used in electric power distribution systems since their invention by Thomas Edison in the late 19th century. Today, they are ubiquitous in both industrial and residential settings as critical components in electrical safety. The APL111-1REC4-2920-17 is a type of circuit breaker, which is designed to provide both circuit protection and switching control functions. This article will discuss the application field and working principle of the APL111-1REC4-2920-17.

The APL111-1REC4-2920-17 circuit breaker is used primarily in the protection of residential and light industrial equipment, such as air conditioners, electric motors, and other devices where overcurrent protection is needed. It is an manually operated, single-pole, thermal circuit breaker with built-in ground fault protection. It features a reliable trip mechanism and a tested nominal tripping current of 10-15 amps. A thermal-magnetic trip mechanism provides both short-circuit and overload protection, and the circuit breaker has an adjustable trip setting to suit the needs of the application.

The APL111-1REC4-2920-17 is a single-pole breaker that opens a circuit or disables circuitry in the event of an overcurrent or short in the system. It achieves this by using two different mechanisms in parallel. The first is a thermal mechanism that operates based on the temperature of the components inside the breaker. This is the primary mechanism, as it is designed to trip at very low currents and respond quickly to short-circuit or overload conditions. The second is a magnetic mechanism, which is slower to respond, but act as confirmation and reinforcement to the thermal mechanism. When the supplied current exceeds the rated limit, the thermal portion of the trip mechanism will heat up and cause the contacts of the breaker to open, cutting off power to the circuit.

The APL111-1REC4-2920-17 circuit breaker is designed for quick response to high fault levels and reset once the fault is cleared. Resetting the breaker can be done by simply pressing the reset button. It also has an automatic power reset feature, which helps protect the connected equipment. Additionally, the circuit breaker is equipped with a ground fault interrupt capability, which provides additional protection of personnel and equipment against electric shock.

In conclusion, the APL111-1REC4-2920-17 is a single-pole thermal circuit breaker designed for residential and light industrial applications. It provides circuit protection and switching control with a reliable trip mechanism, adjustable trip settings, and quick response to overcurrents. Additionally, it has an automatic power reset feature and ground fault interrupt feature for additional safety of personnel and equipment.

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