LELBXPK11-39012-125-V

Series:	LEL
Part Status:	Active
Lead Free Status / RoHS Status:	--
Breaker Type:	Magnetic (Hydraulic Delay)
Moisture Sensitivity Level (MSL):	--
Current Rating:	--
Number of Poles:	2
Actuator Type:	Rocker
Illumination:	--
Illumination Voltage (Nominal):	--
Mounting Type:	Panel Mount

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Introduction

The LELBXPK11-39012-125-V is a type of circuit breaker, designed to automatically turn off a circuit as soon as an overload or short circuit is detected. Circuit breakers are essential elements of any electrical system, providing essential electrical protection to both electrical equipment and personnel.

Construction and Design

The LELBXPK11-39012-125-V is composed of several distinct parts, each designed to operate in a specific way. The main component of the breaker is the contact, which has the responsibility of physically opening and closing the circuit. This is done by the mechanical motion of the contact. The contact is connected to a bi-metallic strip or a thermal-magnetic coil, which act as the controlling or triggering element of the breaker. When an overload or short circuit is detected, the bi-metallic strip or thermal-magnetic coil expands or contracts in response to the overload, which in turn triggers the contact to open and cut off power to the circuit. The breaker is also equipped with a casing, which is essential to protect the breaker against physical damage. The casing also serves to shield against the electrical arcing that can occur during a short circuit event.

Applications

The LELBXPK11-39012-125-V is a medium voltage breaker and is commonly used for medium voltage systems. These systems typically operate between 2.4kV and 15kV. These circuit breakers are most commonly used in industrial applications such as factories, power plants, and substations. They can also be used in commercial buildings or other places where a medium-voltage circuit needs to be protected.

Working Principle

The working principle of the LELBXPK11-39012-125-V is relatively simple. The aboved mentioned contact is physically opened or closed by the action of mechanical, thermal, or magnetic force. Upon detection of an overload or short circuit, the bi-metallic strip or thermal-magnetic coil will expand or contract in response, triggering the contact to open and cut off power to the circuit. When the contact is open, the circuit is disconnected and therefore no electricity is allowed to flow through the circuit. This effectively protects the system from any potential damage due to excess electrical current.

Conclusion

The LELBXPK11-39012-125-V is a medium voltage circuit breaker designed to quickly respond to overcurrents and short circuit events. It is composed of several parts, each designed to serve a specific purpose. This breaker is most commonly used in industrial applications to protect systems from electrical surges and overloads. It works by mechanically opening or closing a contact in response to an detected overload or short circuit

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