PR21-4-3.00A-XX-V

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Circuit breakers have been used in electrical systems since the late 19th century, and ever since, they have become an important part of electrical system safety. A circuit breaker is an automatic device designed to quickly interrupt a circuit when a fault is detected or an overload occurs, protecting the system from further damage. The PR21-4-3.00A-XX-V Circuit Breaker is a compact, durable, and reliable device that is designed to protect 230V AC systems from overloads and faults. It is a key component in typical electrical , power, and process control applications.

Application Field

PR21-4-3.00A-XX-V Circuit Breakers are designed for use in both residential and commercial applications. In residential applications, they can be used to protect refrigerators, washing machines, dryers, lighting systems, air conditioners, and other appliances and lights. In commercial and industrial settings, they can be used to protect variable frequency drives, motors, power distribution systems, machine tools, welding equipment, and other electrical systems.

Working Principle

The PR21-4-3.00A-XX-V Circuit Breakers use a simple thermal-magnetic trip system. In normal operation, the current flows through the device and the contacts remain closed. When a fault is detected or an overload occurs, the current flows through the magnetic trip element and the contact material melts, quickly interrupting the circuit. This prevents hazardous conditions from occurring, such as overheating, electrical shock, and fire. Following a power outage, the device resets and the contacts resume their normal closed position.

Key Features

The PR21-4-3.00A-XX-V Circuit Breaker is designed for a variety of applications and features a number of key features, including a breaking capacity of 6kA, adjustable trip setting, manual reset, fast switching, mechanical and electrical latching, IP20 protection, and protection against short circuits, overvoltage, and overcurrent. Additionally, the device is corrosion-resistant and is designed to be used in ambient temperatures ranging from -25°C to +55°C.

Conclusion

The PR21-4-3.00A-XX-V Circuit Breaker is a reliable and durable device designed to provide protection against overloads and faults in 230V AC systems. It is suitable for both residential and commercial applications, and is loaded with features such as adjustable trip setting and manual reset, making it a great addition to any system.

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