R21-4-15.0A-25827-1-V

Circuit Breakers: R21-4-15.0A-25827-1-V application field and working principle

Circuit breakers are an important component of electrical systems, ensuring safe and reliable operation in many devices. This is especially true for the R21-4-15.0A-25827-1-V circuit breaker, which has been designed to provide superior protection in a wide range of applications.

Application Fields

Circuit breakers are designed to protect electrical circuits against overload, short circuit, and ground fault current. The R21-4-15.0A-25827-1-V is specifically designed for motor applications, including motor starters, control rulers, and transport and lifting facilities. It is also suitable for residential, commercial and industrial circuit protection, providing superior protection against overload and short circuit failures.

The R21-4-15.0A-25827-1-V is rated for current capacities up to 15A and voltage levels up to 500V. Its compact design makes it suitable for installation in confined spaces or awkward places, making it an ideal choice for applications where space is limited. Additionally, it is suitable for all possible connection positions, facilitating easy installation, and can operate within a wide temperature range from -25°C to +50°C.

Working Principle

The R21-4-15.0A-25827-1-V circuit breaker operates using a thermomagnetic principle, which allows it to detect electrical overloads and cut off the power supply automatically. This helps to reduce the risk of electrical fires, as well as other electrical faults.

The thermomagnetic principle operates by sensing changes in temperature due to an overcurrent in the circuit. This triggers the release of a tension spring, which then forces the contact points to part, cutting off the power supply. Once the temperature has returned to normal levels, the tension spring is released and the contact points reconnect, allowing the power supply to be restored.

The R21-4-15.0A-25827-1-V circuit breaker also features status monitoring, which allows the user to check the status of the breaker at any time. This helps to ensure that the breaker is operating correctly and is providing the necessary protection.

Conclusion

The R21-4-15.0A-25827-1-V circuit breaker is designed to provide superior protection in a wide range of applications, including motor starters, control rulers, transport and lifting facilities, and residential and commercial applications. Its thermomagnetic principle allows it to automatically detect overloads and short circuits, and trigger the release of a tension spring which cuts off the power supply. Furthermore, its status monitoring feature allows the user to ensure that the breaker is operating correctly.