APL212-9739-21

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Circuit breakers are an essential safety feature in electrical power systems. The APL212-9739-21 circuit breaker belongs to the auto-linear system breakers family and is capable of automatically breaking a circuit in the event of an over-current or short circuit. This type of circuit breaker is designed to be installed directly in series with the power source to the circuit under protection, and is rated for a maximum current of 100 amps.

The APL212-9739-21 auto-linear system breaker is composed of two separate parts, the main contactor and the control element. The main contactor separates the two channels of the protected circuit in the event of an over-current or short circuit. The control element is comprised of a number of components, including a trip-block, a thermal-magnetic switch, and a trip-switch. When the current reaches a predetermined level, the thermal-magnetic switch causes the trip-block to be activated. The trip-block forces the trip-switch to open, and thereby causes the main contactor to separate and break the circuit.

The APL212-9739-21 is rated for a maximum current of 100 amps. The breaker is designed to trip at 505 amps or higher for one second, and at 808 amps or higher for less than one second. In addition, the breaker has an adjustable creep-recovery time of up to 35 seconds to ensure that the currents do not exceed the maximum rating. This adjustable creep-recovery time allows for gradual decrease in current over time, without any resetting required.

The APL212-9739-21 auto-linear system breaker is designed to be installed in industrial and commercial applications. It can be used in areas with high demand of current, like data centers and machine shops, to protect electrical circuits and equipment from over-current and short-circuit related hazards. The breaker is especially suitable for applications with dynamic loads and frequent off-on switching. This type of breaker is also highly reliable as it operates with minimal maintenance and can be easily reset.

In summary, the APL212-9739-21 auto-linear system breaker is an ideal choice for applications with dynamic loads and frequent off-on switching. The breaker provides reliable protection from over-current and short-circuit related hazards and is designed to trip at a maximum current of 100 amps. The adjustable creep-recovery time ensures that the current is gradually decreased over time. The breaker is suitable for industrial and commercial applications and requires minimal maintenance.

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