LELZX11-32380-20-V

Circuit Breakers

A circuit breaker is an electrical switch designed to prevent an electric circuit from damaging itself due to a short circuit or overload. It is designed to open and close automatically in response to current flowing through the circuit. As a result, circuit breakers are used in most electrical systems to limit the amount of current flowing through a circuit and to protect devices from becoming overloaded.

The LELZX11-32380-20-V circuit breaker is a type of circuit breaker designed for use in low voltage applications. This circuit breaker is three pole with a nominal voltage rating of 400VAC and can withstand a rated breaking capacity of 8kA. It is designed to provide protection against short circuits, overloads, and heater faults. This is achieved by incorporating a thermal-magnetic tripping mechanism with adjustable trip settings.

The working principle of the LELZX11-32380-20-V circuit breaker is based on three basic principles: thermal, magnetic, and mechanical. The thermal principle works on the basis of a bimetal being heated by the current passing through it. The bimetal expands when heated, thus activating the trip mechanism. The magnetic principle relies on a solenoid being energized by the current passing through it. This produces a magnetic field which attracts an armature, resulting in the trip mechanism being activated. The mechanical principle relies on the movement of the contacts. When the current passing through the circuit exceeds the pre-determined level, the contacts move, resulting in the trip mechanism being activated.

In addition to providing protection against electrical faults, the LELZX11-32380-20-V circuit breaker is also designed to provide protection against damage due to arcs and sparks caused by faulty components or incorrect wiring. This is achieved by incorporating an arc quenching chamber which uses a combination of remote positive switching, magnetic shorting, and pressure contact technology to quickly extinguish any arcs or sparks that may occur.

The LELZX11-32380-20-V circuit breaker is designed for use in a variety of applications, including residential and commercial buildings, industrial plants, and other low voltage applications. Its robust construction and adjustable trip settings make it an ideal choice for providing protection against short circuits, overloads, and heater faults. It is also designed to provide protection against arcs and sparks caused by faulty components or incorrect wiring.