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Circuit Breakers: W54-XG7A12B10-30 Application Field and Working Principle

Circuit Breakers are utilized in a wide range of scenarios, mainly to protect devices, components and people from harm, as they will trip in the event of a detected overload or short circuit, which prohibits excessive current flow. The W54-XG7A12B10-30 is a common circuit breaker model and has a plethora of features that make it suitable for many applications such as industrial and commercial use, marine, RVs, and more.

Overview

The W54-XG7A12B10-30 is a 3-pole, 1 pole or 2 pole breakers, available in 10 and 30 amp ratings. It is an UL 489 certified three-pole circuit breaker with a maximum voltage rating of 600 VAC and a maximum interrupting rating of 10,000A. It is intended for AC and DC use and features an adjustable trip setting, which is field adjustable. This breaker features a combination of thermal and magnetic trip elements to guarantee reliable protection. It also has a push-to-reset mechanism that allows for manual control of the circuit breaker.

Application Field

The W54-XG7A12B10-30 is suitable for a range of applications including industrial and commercial purposes, where it has to provide circuit protection from short circuits, overloads, and power spikes. In addition, it is suitable for marine and Recreational Vehicle applications, as it is designed to meet stringent marine product certifications, such as ABYC and VDE. The breaker circuit is also marine salt spray tested, which means it can provide adequate protection even in rigorous marine environments.

Working Principle

The W54-XG7A12B10-30 circuit breaker works by using a combination of thermal and magnetic elements. The thermal element works by heating up a bi-metallic spring strip which helps to keep the circuit breaker in its "on" position. When the circuit current rises beyond the breaker’s rated setting, the heater will heat up the spring strip, causing it to expand and break the switch contacts, thus opening the circuit. The magnetic element works by sensing current overloads or short circuits, causing the magnetic field within the circuit breaker to build up. When the field has reached a certain strength, it triggers the electro-magnetic circuit breaker to physically move and open the circuit.

The W54-XG7A12B10-30 also uses an adjustable trip setting, which can be seen as an additional level of protection against short circuits and overloads. This setting works by allowing the operator to adjust the circuit breaker’s trip point depending on their specific needs. For example, if they want to draw more current than the rated capacity, they can set the circuit breaker to trip at a higher point than the normal one.

Conclusion

The W54-XG7A12B10-30 is a well-equipped circuit breaker and a suitable choice for many applications, particularly industrial, commercial and marine use. It features an adjustable trip setting and two sets of elements in order to guarantee protection against current overloads and short circuits. As such, this model is well-suited for both residential and light commercial applications, where reliable circuit protection is required.

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