UPL111-34179-60 Circuit Protection

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Circuit breakers are an important safety mechanism in any home or building. The UPL111-34179-60 is a compact circuit breaker that helps protect your home or building from electrical surges or faults. It is a three-pole thermal-magnetic breaker set up for AC voltage use and contains two switching mechanisms within it. The first is a thermal element and the second is a trip-free magnetic actuator.

The thermal element of the UPL111-34179-60 is responsible for both switching off the circuit in the case of overload or short-circuit conditions, and then manually resetting after the overcurrent is removed. This is accomplished through a bimetallic strip and a tipped-contact assembly to sense the temperature increase that occurs during an overload or short-circuit event. When the temperature reaches a certain level, the bimetallic strip is rapidly forced inwards and causes the contacted plates to open thus switching off the circuit. Once the temperature is reduced, the strip is pulled back by a spring, allowing the plates to come back together, thus resetting the breaker.

In addition to the thermal element, the UPL111-34179-60 also contains an electromagnet that is used in combination with its thermal element to trigger a trip. This electromagnet is connected to a trip-free mechanical interlock which prevents the breaker from being reset until all current is removed. This helps protect the circuit from being overloaded and prevents any unnecessary downtime. The electromagnet will trip the breaker whenever the current level is too high, even when the thermal element has not yet reached the trip temperature.

In summary, the UPL111-34179-60 is a highly effective circuit breaker that offers superior protection from electrical surges and faults. Its two-stage system allows for fast and reliable switching of the circuit, and the built-in trip-free mechanism helps prevent unnecessary downtime. This state-of-the-art, compact circuit breaker is an excellent choice for protecting the electrical equipment in any home or building.

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