PR21-4-4.00A-28373-2-V

Series:	SNAPAK®
Part Status:	Active
Lead Free Status / RoHS Status:	--
Breaker Type:	Magnetic (Hydraulic Delay)
Moisture Sensitivity Level (MSL):	--
Current Rating:	--
Number of Poles:	2
Actuator Type:	Push to Reset
Illumination:	--
Illumination Voltage (Nominal):	--
Mounting Type:	Panel Mount

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Introduction to Circuit Breakers

A circuit breaker is an essential safety device designed to protect electrical systems from overloading and short circuiting. Its purpose is to quickly interrupt a circuit when an overcurrent or short circuit occurs. They are installed in both residential and commercial buildings to protect the wiring from high current or spikes, and to prevent embedded equipment from being damaged in the process.

Types of Circuit Breakers

Circuit breakers come in a variety of types depending on the specific application. Common types of circuit breakers include air circuit breakers, magnetic circuit breakers, residual current circuit breakers, and combination circuit breakers. Each of these types works in a slightly different way and provides distinct advantages in different applications.

PR21-4-4.00A-28373-2-V Circuit Breakers

The PR21-4-4.00A-28373-2-V is a type of air circuit breaker, which is designed to break an electrical circuit in case of an overload or short circuit. Air circuit breakers are the most commonly used type of circuit breaker in commercial, residential and industrial applications. The PR21-4-4.00A-28373-2-V is designed to protect against electrical faults, preventing equipment and wiring from being damaged in the process.

Working Principle

The working principle of an air circuit breaker is based on the magnetic field created when an electric current flows through a metallic conductor. When a predetermined current level is exceeded, the circuit breaker is activated. This causes an electromagnetic force to be generated that splits the contacts of the circuit breaker, breaking the circuit and stopping the flow of electricity. Once the fault is cleared, the circuit breaker can be reset, allowing the current to flow normally once again.

Application Field

The PR21-4-4.00A-28373-2-V circuit breaker is perfectly suited for both residential and commercial applications, such as in electrical distribution systems, switchboards, and even in individual circuits. It is designed to provide a reliable and efficient way of protecting electrical equipment and wiring, while allowing for easy resetting of the circuit breaker once the fault has been cleared.

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