229-2-70391-65

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Part Status:	Active
Lead Free Status / RoHS Status:	--
Moisture Sensitivity Level (MSL):	--

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Circuit Breakers

229-2-70391-65 Application Field and Working Principle

A circuit breaker is an electrically operated switch used for the protection of an electrical circuit against excessive current and short-circuits. Circuit breakers are widely used in residential, commercial, and industrial electrical systems. Circuit breakers are required for all electrical systems designed to meet safety standards, such as the National Electric Code (NEC).The 229-2-70391-65 circuit breaker is designed to provide overload and short-circuit protection for medium-voltage AC power systems. This circuit breaker is suitable for use at voltages up to 15 kV and currents up to 450A. It is available in sizes from 3 pole to 8 pole configurations.The 229-2-70391-65 circuit breaker’s operating principle involves the use of an electromagnetically operated switch. The electromagnetic switch consists of a set of magnets, mounted on a plate, surround a moveable armature. When current passes through the switch, the electromagnetic force increases, moving the armature and opening the contacts, breaking the circuit.When a fault occurs due to short-circuit or overload, the 229-2-70391-65 circuit breaker responds by tripping, interrupting the connection and restoring safe operating conditions. The tripping time of this circuit breaker is adjustable, allowing the user to set the appropriate response time according to the application requirements.The 229-2-70391-65 circuit breaker also has an array of additional features, such as trip free mechanism, thermal memory, interrupting capacity, and adjustable time delay. The trip free mechanism ensures that the circuit breaker will not reset after a fault is detected, thus preventing reenergization accidents. The thermal memory feature keeps track of the temperature of the contacts, indicating potential circuit breaker failure due to overheating. The interrupting capacity and time delay of this device can be adjusted to provide extra protection against spikes or surges of current, allowing for a failsafe system.The 229-2-70391-65 circuit breaker can provide reliable and consistent protection for medium-voltage AC power systems. Its adjustable features and reliable operation combined with superior durability make it the perfect choice for applications requiring a reliable reset function and overload protection.

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