3120-F511-N7T1-W12CY3-5A

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Circuit Breakers

Circuit breakers are essential components of any electrical system, and are used to prevent damage to the power infrastructure caused by power shortages or overloads. The 3120-F511-N7T1-W12CY3-5A has specific application fields and a standard operating principle for its circuit breakers.

Application Field

The 3120-F511-N7T1-W12CY3-5A is suitable for applications of up to 500V AC and/or 400V DC with a rated operational current from 20A to 800A. It is suitable for both single and three-phase installations. It can be installed in assorted enclosures and it is designed for indoor and outdoor installation. This circuit breaker is designed for use in general power distribution systems and building control systems.

Working Principle

The 3120-F511-N7T1-W12CY3-5A was designed with a trip free mechanism that opens the circuit when a short circuit or overload occurs. The mechanism also uses a time delay to allow the circuit breaker to switch back on when the short circuit or overload is rectified. Upon detection of a fault, the circuit breaker will shut off the power to the entire system. This is to prevent the entire system from being damaged due to the buildup of excessive electrical current.

The 3120-F511-N7T1-W12CY3-5A uses an integrated thermal-magnetic trip device to control the circuit breaker trip. This device detects an over current situation and triggers a tripping mechanism to cut off the circuit. This device is adjusted by setting the trip class and current rating of the breaker. This can be done via a dial on the front of the breaker.

The 3120-F511-N7T1-W12CY3-5A is designed with a mechanical latch to hold the contacts in the closed position. This prevents any circuit breakers from operating unnecessarily and also prevents a short circuit current from building up and damaging the system.

The 3120-F511-N7T1-W12CY3-5A is equipped with an alarm indicator that will alert the user when a short circuit or overload has been detected. This can be heard via the nuisance alarm indicator or via a direct connection to the operator interface. The alarm indicator also includes an LED light that is illuminated when a short circuit or overload is detected.

In summary, the 3120-F511-N7T1-W12CY3-5A is a circuit breaker designed for general power distribution system with a rated operational current from 20A to 800A. It has a specific application field and a standard operating principle for its circuit breakers. It is designed with a trip free mechanism and a thermal-magnetic trip device that detects an over current situation, and a mechanical latch and nuisance alarm indicator that will alert the user when a short circuit or overload has been detected.

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