4420.0155 Circuit Protection

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Circuit breakers are widely used in the electrical industry as a means of protecting electrical circuits. The 4420.0155 circuit breaker is a precision-manufactured device that is specifically designed to protect household circuits and wiring from damage due to overcurrent conditions. It has a wide variety of applications, from residential to industrial, with a wide range of features.

The 4420.0155 circuit breaker is a single-pole, thermal-magnetic circuit breaker. The basic operation of the device is to open the circuit in case of an overload or short circuit fault. The device contains two overload detection mechanisms, a thermally-sensitive bi-metallic element and a heat-sensitive magnetic field rating induction disk. These two mechanisms are combined to provide fast and efficient overcurrent protection.

When a fault occurs, the bi-metallic element heats up very quickly and expands, causing the operating latch of the circuit breaker to trip, thereby opening the circuit. The rate of the current determine the timeframe of the expansion. The heat generated by the current flow is sensed by the induction disk, causing it to move and activate the circuit breaker’s operating latch. This ensures fast and reliable undervoltage protection.

The 4420.0155 circuit breaker is suitable for use in residential, commercial and industrial applications. In residential applications, the device is used to protect lighting circuits, AC systems and other low current systems from overcurrent conditions. In commercial and industrial applications, the device can be used to protect a wide range of electrical circuits, such as lighting, HVAC, and computer systems. The device can also be used in electric vehicles to protect battery systems and other components from overcurrent conditions.

The 4420.0155 circuit breaker is highly versatile and user-friendly. It is equipped with a test button to allow the user to check the readiness of the device. This device also features an adjustable trip range and is UL 489A rated, ensuring superior performance and safety. Additionally, it has a trip indication LED, which indicates if the circuit breaker has been tripped.

The 4420.0155 circuit breaker is a dependable and cost-effective device that offers advanced protection for electrical circuits. It is suitable for a variety of applications, from residential to industrial, and it provides fast and reliable protection from overcurrent conditions.

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