413-K14-N2-70A Circuit Protection

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Circuit Breakers are safety devices that are commonly used to disconnect circuits upon sensing an overload or fault current and protecting the respective electrical system or its component parts. The 413-K14-N2-70A is a type of circuit breaker designed with an electronic current sensing and trip unit. In this article, the application field and working principle of the 413-K14-N2-70A circuit breaker will be explored.

The 413-K14-N2-70A is mainly used in medium voltage power distribution networks due to its high trip setting accuracy and its fast and reliable current trip sensing response time. It is suitable for controlling and protecting three-phase motors, generators, transformers, and other equipment in a variety of industrial and commercial applications. The 413-K14-N2-70A is designed with an adjustable trip current setting, a microwave fault location unit, trip-free feature, and adjustable time delay. The breaker is also highly compatible with a variety of monitoring and control systems.

The working principle of the 413-K14-N2-70A circuit breaker is based on the Lorentz force law. The breaker is equipped with an electromagnet, attached to the spring-loaded operating member, which attracts the armature of the breaker. When a current passes through the electromagnet, the magnetic field produced by the magnet creates an opposing force in the armature, known as the Lorentz force. When this force is greater than the opposing force of the armature spring, the armature is moved, releasing the operating member and breaking the circuit.

The breaker is also equipped with an electronic trip system that is capable of measuring the overload current and sending a signal to trip the breaker if necessary. When the current passing through the breaker exceeds the settable current level, the electronic trip system sends a signal to the trip coil to move the armature. This causes the operating member to release and the breaker is tripped. In order to reset the breaker, the current must be reset to a specified level, or the breaker can be manually reset via the reset button on the device.

The 413-K14-N2-70A circuit breaker is a reliable and efficient safety device that is commonly used in medium voltage power distribution networks. Its adjustable trip current setting, microwave fault location unit, trip-free feature, and adjustable time delay make it highly suitable for a variety of industrial and commercial applications. The working principle of the breaker is based on the Lorentz force law, and its electronic trip system ensures that the breaker is tripped whenever an overload occurs.

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