APL1-8911-11 Circuit Protection

Series:	APL
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Breaker Type:	Magnetic (Hydraulic Delay)
Moisture Sensitivity Level (MSL):	--
Current Rating:	--
Number of Poles:	1
Actuator Type:	Lever
Illumination:	--
Illumination Voltage (Nominal):	--
Mounting Type:	Panel Mount

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Circuit Breakers: APL1-8911-11 Application Field and Working Principle

Circuit breakers are essential components of electrical systems, providing protection against overcurrents that could otherwise lead to overheating and failure of equipment. This article will provide an overview of the APL1-8911-11 circuit breaker, including its application field and working principle.The APL1-8911-11 is a UL Listed Underwriters Laboratories circuit breaker designed for residential and commercial applications. This breaker is rated for a voltage of 120/240 volts and delivers up to 30 amps of current. It is suitable for use in lighting, heating, and air conditioning systems. The APL1-8911-11 is UL Listed to UL489A for both trip free and direct-acting circuit breakers, and is also UL Listed to UL1077 for Supplementary Protectors.The APL1-8911-11 is designed to provide both over-current and short-circuit protection, and can be used in both panel and sub-panel installations. It is equipped with an adjustable trip setting, allowing it to be configured to trip at currents ranging from 15-30 amps, making it ideal for a variety of residential and commercial applications.When an over-current occurs, the APL1-8911-11 will open the circuit, disconnecting the circuit and protecting it from further damage. This is achieved by using an electromagnetic principle, wherein the current flowing through the breaker causes a magnetic field around it. When the current exceeds the trip limit, the magnetic field increases the force on the breaker’s internal components, causing them to move and open the circuit.The APL1-8911-11 is designed to withstand temperature and humidity extremes, and is UL Listed for use in hazardous locations. Its thermal-magnetic trip provides added protection against surges or extended high-current loads, helping to improve safety and reduce the risk of fires or other incidents caused by excessive current.In conclusion, the APL1-8911-11 circuit breaker is a reliable and versatile device for residential and commercial applications. It provides over-current and short-circuit protection, with an adjustable trip setting, and is rated for 120/240 volts and up to 30 amps of current. Its thermal-magnetic trip offers added protection against surges, and it is UL Listed for use in hazardous locations.

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