FNQ-14

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FNQ-14 circuit breakers are integral components of everyday electrical systems. They are most commonly used in high-current applications, where their high interrupting rating of 10,000 amperes ensures that the current is effectively contained. In such situations, FNQ-14 circuit breakers can isolate a fault condition before significant damage is caused to the wiring or equipment attached to the circuit.

FNQ-14 circuit breakers not only protect wiring and equipment from damage, but also provide personnel with enhanced safety. By automatically interrupting the current flow when a fault condition is detected, FNQ-14 circuit breakers can help reduce the risk of electric shock and associated injuries. Specifically, FNQ-14 circuit breakers are UL 489 listed for up-to-10kA/120V, and up to 17.5kA/240V.

In terms of design, FNQ-14 circuit breakers feature a modular design, with independent energized and non-energized terminals. This design allows the FNQ-14 to be used in a variety of applications, including residential, industrial and commercial electrical systems. Furthermore, FNQ-14 circuit breakers feature quick-make/quick-break capabilities, enabling a smooth, uninterrupted current transfer when an overload or short circuit is detected.

In terms of installation, FNQ-14 circuit breakers are designed for easy connection and disconnection. They can be mounted on standard DIN rail systems, or directly to the back of the load terminals. Furthermore, the terminals feature a “push & hold” design, allowing for quick and reliable installation. Finally, FNQ-14 circuit breakers are also designed for easy maintenance. Their shielded design prevents tampering and ensures that their operational settings do not change accidentally.

The FNQ-14 circuit breaker’s working principle is based on thermal-magnetic technology. It consists of two distinct components: a thermal cut-off element, and an electromagnetically actuated switch. The thermal component is designed to allow high current to flow through the circuit for a given time, before automatically cutting off upon detection of an overload. The magnetic component ensures that the circuit is interrupted immediately upon the detection of a short circuit. When the temperature of the circuit rises above a certain level, the speed of the circuit’s current is limited in order to reduce the risk of extreme heat damage.

Overall, FNQ-14 circuit breakers are multi-functional components that provide reliable and cost-effective protection to electrical systems. Their wide range of applications, modular design, quick-make/quick-break capabilities, and easy installation and maintenance make them ideal electrical solutions for residential, commercial, and industrial settings.

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