APL1-1669-7

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Circuit breakers play an important role in protecting electrical systems and preventing electrical fires. The APL1-1669-7 circuit breaker is a popular choice among electricians due to its reliability and features. This article will explain the application field and working principle of the APL1-1669-7 circuit breaker.

The APL1-1669-7 is designed for low-voltage, residential style applications. It is rated for up to 600 VAC and is suitable for single-pole, three-phase, and four-wire systems. It is also highly resistant to water and dust, making it well-suited to outdoor applications. The mechanism utilizes a dual independent contact arm with a permanent spring drive, which ensures reliable, positive contact assurance.

The APL1-1669-7 includes several safety features, including an integral thermal trip to interrupt the circuit in the event of an overload. This thermal trip is temperature-sensitive, and is designed to prevent the circuit breaker from continuously tripping due to an overload. It also includes a manual “test” button, allowing electricians to easily test the circuit breaker to ensure it is operating correctly.

The APL1-1669-7 operates in three main steps. First, when the circuit breaker is closed, current is allowed to flow through the circuit. Second, when an overload or short circuit is detected, the permanent spring drive of the APL1-1669-7 contracts and pulls the dual contact arms apart, interrupting the circuit and preventing further damage. Lastly, the thermal trip mechanism activates in the event of a sustained overload and trips the circuit.

The APL1-1669-7 is designed to be easy to install and maintain. It accepts 1/2" inch and 1" inch conductors, and is designed to be compatible with a number of mounting configurations. Additionally, the APL1-1669-7 features a removable cover plate, allowing easy access for maintenance and repairs.

The APL1-1669-7 is a reliable and proven choice for protecting low-voltage circuits in residential applications. It offers an easy installation, highly reliable dual contact system, and an integrated thermal trip to prevent unwanted overloads. With its advanced features and design, the APL1-1669-7 is an ideal choice for electricians and homeowners alike.

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