W28-XQ1A-10

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Application Field and Working Principle of W28-XQ1A-10 Circuit Breaker

A circuit breaker, also known as a circuit board or CB, is an electrical device that protects your home or business from an electrical overload. It is designed to shut off the electricity when it detects an overload, thus protecting everything downstream from it. W28-XQ1A-10 circuit breaker is a typical engineering device used by professional electricians. In this part, W28-XQ1A-10’s application field and working principle will be discussed.

Application Field

This product is a molded case circuit breaker (MCCB) and must be used in DC applications. It is suitable for use in the power circuit of industrial machines and device installations, such as general industrial enterprises, power plants, water conservancy and transportation systems, and instrumentation and control systems. This circuit breaker can operate at up to DC 1500V and provide up to 20A continuous current as well as short-circuit protection.

Working Principle

Circuit breakers are generally tripped when the current through the breaker exceeds a design value or when short-circuit current is applied. In the case of W28-XQ1A-10, this trip action is based on a bimetallic strip. As the name suggests, the bimetallic strip consists of two different metals with different thermal expansion rates. When a current flows through the strip, it heats up due to its electrical resistance. The different metals expand at different rates and this causes the strip to bend. The bent strip then operates a switch which trips the circuit and stops the current flow.

The W28-XQ1A-10 also has an adjustable length trip trip curve that can be set to match different load characteristics. This trip curve is adjusted using a knob located on the front of the breaker. It allows the user to adjust the amount of current flow required to trip the circuit. Additionally, the W28-XQ1A-10 provides an instantaneous trip operation. This feature allows it to trip at an adjustable current of up to 20A, as well as protects against short-circuit currents.

Conclusion

A W28-XQ1A-10 circuit breaker has a wide range of applications in industrial and commercial electric power circuits. It can provide short-circuit protection, adjustable trip curve and instantaneous trip operations. Its working principle is based on a bimetallic strip, which is activated when a current passes through it. All these features make the W28-XQ1A-10 a very suitable electric circuit breaker.

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