IALN11-1REC4-52-50.0 Circuit Protection

Introduction

IALN11-1REC4-52-50.0 is a circuit breaker that see more commonly used in industrial applications. This type of circuit breaker provides reliable protection and it is designed for safe interruption of normal and abnormal system conditions with a short circuit current rating of up to 50 kA.

Application Fields

The IALN11-1REC4-52-50.0 circuit breaker is most commonly used in industrial applications, such as power plants, power distribution systems, solar energy systems, electrical transformers, and telecommunications systems. Additionally, the IALN11-1REC4-52-50.0 has been identified as an ideal choice for the application of emergency power systems, renewable energy systems, and back-up power systems that demand high levels of fault current interruption.

Working Principle

The IALN11-1REC4-52-50.0 circuit breaker operates using a thermal-magnetic operating mechanism. This operator employs a combination of both thermal and magnetic elements to provide reliable over-current protection. The thermal element reacts to sustained overload conditions by measuring the current flow through the circuit and tripping when it exceeds the maximum current rating. The magnetic element reacts to instantaneous over-currents, tripping as soon as it surpasses the stated maximum current, without taking into consideration the duration of the overload.

Once the maximum current is reached, a bi-metallic strip is heated and begins to bend, releasing a trip bar that actuates the circuit breaker. The bi-metallic strip is made of two different metals – usually copper and brass – that have different rates of thermal expansion. As the bi-metallic strip heats up, it bends, thus, pushing the trip bar and closing the switch, thus, resulting in the disconnection of the circuit.

Conclusion

The IALN11-1REC4-52-50.0 is a reliable circuit breaker that is specifically designed for industrial applications. It utilizes a thermal-magnetic operating mechanism that provides protection from sustained overload conditions and instantaneous over-currents. The bi-metallic strip is heated and it bends, releasing the trip bar which actuates the circuit breaker and disconnects the circuit. This type of circuit breaker is ideal for emergency power systems, renewable energy systems, and back-up power systems.