219-3-21242-3

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Circuit breakers are essential for keeping electricity safe and secure in virtually all homes and businesses. From simple fuse boxes to more sophisticated circuits, circuit breakers are designed to help prevent fires and other disasters related to electricity overloads. This article will discuss the 219-3-21242-3 circuit breaker and its application field and working principle.

A conventional circuit breaker, the 219-3-21242-3 is an example of a DrawOut circuit breaker. It is rated for 200 Amperes and its 3 Pole trip consists of two thermal-magnetic and one magnetic trip units. It is made to meet UL 489 requirements for residential and commercial applications and features a front and rear access compartment.

In terms of its application field, the 219-3-21242-3 can be used in all kinds of residential and commercial applications including, but not limited to, residential equipment, light commercial equipment, HVAC systems, electrical appliances, and industrial equipment. It is suitable for both indoor and outdoor applications. The breaker is rated for a maximum current of 200 Amps and is suitable for up to 600 Volts (AC or DC). The breaker has a short-circuit current rating of 65,000 Amps.

The working principle of the 219-3-21242-3 is based on the concept of over current protection. The breaker has two thermal and one magnetic trip units which act as an overload protection device by monitoring the current flowing through the circuit and tripping when the current exceeds the rated limit. The thermal portion of the breaker is activated first and functions based on the rate of the current. If this thermal portion is exceeded, the breaker will trip. The magnetic portion of the breaker is activated last, tripping at a slightly higher current than the thermal portion.

The 219-3-21242-3 also provides additional features such as manual reset, adjustable trip points, and a shunt trip. The reset can be done manually by pushing the reset button on the breaker. The adjustable trip points allow for the breaker to be adjusted for various current loads. Lastly, the shunt trip is used to remotely trip the breaker from a different location.

In conclusion, the 219-3-21242-3 is a conventional DrawOut circuit breaker that is suitable for residential and commercial applications. It is rated for 200 Amperes and its three pole trips consist of two thermal-magnetic and one magnetic trip units. The working principle is based on over-current protection, where the breaker trips when the current exceeds the rated amount. It also comes with features such as manual reset, adjustable trip points, and a shunt trip.

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