PR21-4-5.00A-XX-V

Circuit breakers provide important components of vital electric system protection. PR21-4-5.00A-XX-V is a circuit breaker designed to provide overcurrent and short-circuit protection for both residential and commercial applications. Here we will discuss its applications, working principle and other features.

Applications

The PR21-4-5.00A-XX-V circuit breaker is suitable for use as an overcurrent protection device in all types of main wiring, industrial and commercial AC systems. It is also suitable for use in air conditioning and heat pumps, lighting circuits, motor control centers and electric signs and metering. The breaker’s frame is rated for standard working voltages and meets UL and CSA standards. It meets UL 489 and UL 1077 requirements, so it is suitable for application in a wide range of residential, commercial and industrial applications.

Working Principle

The PR21-4-5.00A-XX-V circuit breaker uses a miniature heat-sensing element combined with a mechanical tripping device. The heat-sensing element acts as a switch to open the circuit and protect it from the effects of fault currents that may occur due to short circuits or overload. The mechanical tripping device will trip the breaker if the current is greater than the current setting.

Features

The PR21-4-5.00A-XX-V breaker comes with a number of features to enhance its protection. It has a high working voltage of 600 volts, so it is suitable for applications with higher power requirements. It also has a temperature rating of 105°C, so it can handle high electric loads. It is also housed in a semiconductor case, so it is more efficient at dissipating heat and preventing the build-up of electrical noise. It is UL 489-Listed which means it is suitable for use in UL-tested electric panels. It also comes with a double impact-resistant base and a shunt trip coil terminal, making it suitable for electric panels that require auxiliary contacts.

The PR21-4-5.00A-XX-V circuit breaker is designed to provide reliable overcurrent and short circuit protection for residential and commercial applications. It is UL 489-Listed, so it is suitable for use in UL-tested electric panels. It has a high working voltage and temperature rating, so it can handle high electric loads. It also has a number of other features that make it well-suited for use in commercial and industrial applications.