229-4-8327-67

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Circuit Breakers

Circuit breakers, typically composed of electrical contacts, springs, and an electric-operated releasing mechanism, are safety devices that interrupt the flow of electricity when abnormal power levels are detected. The specific circuit breaker being discussed, referred to by its model number 229-4-8327-67, is a type of miniature circuit breaker commonly used in residential, commercial, and industrial applications. In the case of this particular circuit breaker, it features three poles with a single 10 A rating per pole.

Application Field

229-4-8327-67 circuit breakers are suitable for residential, commercial, and industrial applications requiring a miniature circuit breaker with a single 10A rating per pole. This type of circuit breaker is particularly well suited for protection against electric shock, short circuits, and overloads, as it is UL and CSA approved and meets UL 1077 supplemental protection requirements. Additionally, this circuit breaker supports applications where the neutral circuit needs to be protected, which is particularly useful in light commercial or industrial environments where sensitive electronic devices may need to be powered.

Working Principle

229-4-8327-67 circuit breakers employ the principle of current interruption when a certain level of power exceeds the breaker’s current rating. The breaker does this by breaking the circuit as nearly as possible when the fault current reaches its trip point. It achieves this using a thermal-magnetic operating mechanism, which uses a bimetallic strip that senses when the current level reaches a certain point and actuates mechanical release operation, thus allowing it to interrupt the circuit that is supplying current. This quick operating mechanism allows the breaker to provide reliable circuit protection and significantly reduces the risk of damage to any devices connected to it.

Furthermore, this particular circuit breaker can be reset after tripping or switching off, thus allowing its use as a full breaker, trip switch, or sub-main fuse. The resetting procedure requires that the external operating lever be manually moved to the “off” position before the breaker is allowed to reset. This ensures that power is shut off before any other action can be taken, thereby providing improved safety for both personnel and equipment.

In summary, the 229-4-8327-67 circuit breaker is a type of miniature circuit breaker suitable for use in residential, commercial, and industrial applications. This device employs a thermal-magnetic operating mechanism to protect against overcurrents, short circuits, and electrical shock. It is also UL 1077 approved for supplemental protection and is suitable for environments requiring protection of the neutral circuit. Additionally, this breaker can be reset after tripping or switching off, which allows it to function as a full breaker, trip switch, or sub-main fuse.

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