Circuit Breakers

A Circuit Breaker is a device designed to interrupt current flow in an electric circuit. The IEG111-26945-1-V is a type of circuit breaker designed for individual branch circuit protection and is commonly used in residential applications. It is designed to detect faults and automatically open the circuit after a predetermined current level has been exceeded for a specified period of time, thereby preventing current overloads and potential fire hazards.

Application Field

The IEG111-26945-1-V is a single-pole circuit breaker, which means it can protect a single phase circuit and is intended for use in a 120-volt alternating current (AC) electrical system. It is rated for 10, 15 and 20 amps and can be used as a service entrance breaker or as a main breaker where the load side of that breaker is provided with overcurrent protection. The breakers can also be used as panel board main breakers, feeder circuit breakers, disconnecting means, manual transfer switches, or be installed in multiple-pole enclosures as circuit breakers or equipment disconnects.

Working Principle

In order to understand the working principle of the IEG111-26945-1-V circuit breaker, one must first understand that the device is comprised of two main components: an electromagnet and a trip mechanism. The electromagnet is connected to the circuit being protected and the trip mechanism is connected to the load side or downstream of the circuit.

The trip mechanism is responsible for detecting faults in the circuit and responding accordingly. When the current flowing through the circuit rises above the breaker’s predetermined level, the electromagnet’s force is called into action, causing the trip lever to pivot and open the contacts. This interrupts the current flow and breaks the circuit. Additionally, as the faulted loop is cleared, the electromagnet returns the trip lever to its original position, allowing the current to flow again.

In short, the IEG111-26945-1-V is designed to detect any potential overloads or short circuit and trip immediately before they become a hazard. This device is essential in providing circuit protection and ensuring the safety of both people and property.