QLB-203-11B3N-3BA

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A circuit breaker is a device used to protect an electric circuit from damage caused by overload or fault current. The QLB-203-11B3N-3BA circuit breaker is a type of miniature circuit breaker (MCB) that can be used in a number of industrial and domestic applications. It is used to protect low-voltage power circuits from overload or short circuit and helps reduce the risk of electric shock.

The operation of the QLB-203-11B3N-3BA circuit breaker is based on a thermal–magnetic principle. This principle works by detecting an increase in the current flowing through the circuit and responding by tripping the breaker contacts to interrupt the electric flow. When an overload or short circuit is detected, the breaker trips and an indicator light on the breaker surface indicates that the circuit has been interrupted.

The QLB-203-11B3N-3BA is an ideal choice for applications such as electric heating systems, motors, LED lighting, and air conditioning units. It is robust, reliable, and easy to maintain, making it a popular choice for many industrial and commercial applications. The device is available in both single-pole and dual-pole versions for increased protection. It is also UL-listed and meets European standards for compliance with all applicable regulations and safety standards.

The QLB-203-11B3N-3BA is composed of a thermal element and a magnetic circuit. When current passes through the circuit, it is measured by the thermal element which then initiates a thermal response. As the current reaches a predetermined overload level, it overloads the thermal element, triggering the magnetic circuit to trip the breaker. This is done by releasing a mechanism that instantly opens the contacts, thus interrupting the electrical current and preventing further damage.

The QLB-203-11B3N-3BA can be used in both AC and DC circuits, making it a versatile and dependable solution for a wide range of electrical applications. It can also be used in more demanding situations, such as in a machine tool or data center.

The QLB-203-11B3N-3BA is an economical choice for many industrial and commercial applications because of its low cost as compared to other circuit breakers. It is also easy to install and maintain, making it an ideal solution for busy environments. In addition, the device’s construction and design ensure that it will last for many years.

The QLB-203-11B3N-3BA is a reliable and cost-effective circuit breaker for many industrial and commercial applications. It is easy to install and maintain and is UL-listed and compliant with all safety regulations. With its thermal–magnetic, overload trip function, the device is an ideal solution for protecting low-voltage power circuits from damage caused by overload or short circuit.

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