PR21-1-1.00A-XX-S-V

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Circuit Breakers

Circuit breakers are devices that are designed to automatically interrupt an electrical circuit to protect against an overload or short circuit condition. They are used in a variety of applications, and can be found in homes, factories, and businesses. The PR21-1-1.00A-XX-S-V circuit breaker is designed for low power ratings and is suitable for medical, instrumentation, and control applications.

Application Field and Working Principle

The PR21-1-1.00A-XX-S-V circuit breaker is designed to interrupt overcurrents in low voltage applications up to 250VAC. It has been tested to meet several international safety standards, including UL 489, EN/IEC 60947-2, and IEC 947-2. It is suitable for applications such as home appliances, heavy duty equipment, instrumentation, and in-line power supplies. It should not be used in applications requiring higher amperage or higher voltage ratings.

The PR21-1-1.00A-XX-S-V has a current rating of 1A, and a voltage rating of 250VAC. It operates on a thermal-magnetic system, meaning that the trip unit will be triggered by either a sudden increase in current, or a sustained overload. It also features an impulse coil that is used to reset the breaker after a trip. The maximum interrupting capacity of the unit is 10,000A at 125Vac.

The PR21-1-1.00A-XX-S-V circuit breaker also features an adjustable delay in the trip mechanism. This allows the user to set it to trip at a range of current levels, depending on the application. For example, in an appliance, the breaker can be set to trip at a low current level to protect the appliance from a low-level current surge. In a control system, it can be set to trip at a higher current level to protect the system from a medium-level current surge.

In addition, the PR21-1-1.00A-XX-S-V features a mechanical latch mechanism that prevents the breaker from being reset until the trip has cleared. This ensures that the circuit remains off until the current overload has been removed and the breaker is reset.

The PR21-1-1.00A-XX-S-V circuit breaker is a versatile device that is suitable for a wide range of applications. It is easy to install, reliable, and provides reliable protection against electrical overloads.

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