UPL51-2651-1 Circuit Protection

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Part Status:	Obsolete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

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Introduction
Circuit breakers are electrical appliances used to control the flow of electricity through circuits and to protect circuits from damage due to overloads or short circuits. The UPL51-2651-1 is one such type of circuit breaker. In this article, we will discuss its application field and working principle.
Application Field
The UPL51-2651-1 circuit breaker is mainly used in industrial, residential, and commercial settings. In an industrial setting, this type of circuit breaker is typically used in critical power applications such as motor control centers, power distribution centers, and process control systems. In a residential setting, it is often used to provide surge protection for sensitive equipment and to protect home electrical circuits from damage due to overloads, voltage fluctuations, and lightning strikes. In a commercial setting, this type of circuit breaker is typically found in large high rise buildings, where it is used to protect multiple circuits from both overloads and short circuits. Working Principle
The UPL51-2651-1 operates using a two-stage tripping process. When an overcurrent occurs, the circuit breaker operates in two stages: an instantaneous tripping stage and a delayed tripping stage. In the instantaneous stage, the breaker trips immediately upon sensing any abnormal current, shutting off power to the circuit within a few microseconds. In the delayed stage, the breaker further limits the current by slowly throttling it back until it reaches a level that is not dangerous, thus avoiding unnecessary trips to the circuit until a safe level is reached. Once the current has been reduced to a safe level, the circuit is then disconnected from power. Conclusion
The UPL51-2651-1 circuit breaker is designed to protect circuits from overloads and short circuits, making it a valuable tool for industrial, commercial, and residential applications. Its two-stage tripping process ensures safety by providing an instantaneous trip as well as a delayed trip for when an overcurrent occurs, thus avoiding unnecessary trips and eventual damage to the circuit.

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Part Number	Manufacturer	Price	Quantity	Description