1BU5R

Series:	R
Part Status:	Active
Lead Free Status / RoHS Status:	--
Breaker Type:	Thermal Magnetic
Moisture Sensitivity Level (MSL):	--
Current Rating:	5A
Voltage Rating - AC:	480V
Number of Poles:	1
Actuator Type:	Lever
Illumination:	None
Illumination Voltage (Nominal):	--
Mounting Type:	DIN Rail

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Circuit BreakersCircuit breakers are electrical components that are designed to provide a high level of protection for electrical circuits. These devices are typically used to protect circuits from overcurrent, overload, short circuit, or overvoltage conditions. They work by detecting when the current passing through the circuit exceeds the maximum design current, and then shut off the circuit.The 1BU5R Circuit Breaker is a circuit protection device specifically designed for medium voltage (MV) circuits. It features a dual-element, bolt-bearing, one-shot trip mechanism for reliable performance. The mechanism can be used to provide two-step overcurrent protection and overload protection. In addition, the 1BU5R can be configured to provide selectable neutral-to-ground fault protection when used with an approved ground/neutral fuse combination.The 1BU5R is designed to provide protection against short-circuit arcs and fire hazards, making it ideal for use in commercial and industrial applications. The breaker is also suitable for use in motor start and stop applications. The 1BU5R is available in a variety of sizes and ratings, allowing the user to select the device that best meets their specific needs.The 1BU5R Circuit Breaker uses a tripping mechanism to detect an overcurrent condition and then open the circuit. This mechanism consists of two current sensors. The first sensor, the main trip element, is responsible for detecting when the current exceeds the maximum design current. The second sensor, the thermal trip element, is used to detect changes in the ambient temperature. When this temperature exceeds a predetermined threshold, the thermal trip element will open the circuit.The 1BU5R also features an adjustable overload setting, allowing the user to select the current that will trigger the main trip element. This adjustable overload setting allows the user to provide greater protection to the circuit in areas where larger current levels are expected.In addition to providing protection against overcurrent and overload, the 1BU5R also provides selectable neutral-to-ground fault protection when used with an approved ground/neutral fuse combination. This selectable protection allows the user to configure the breaker to provide the most appropriate level of protection for the application.The 1BU5R is also available with a range of accessories, including surge arresters and short-circuit indicators. These accessories can be used to provide enhanced protection against high-energy fault currents, as well as improved short-circuit detection.In conclusion, the 1BU5R Circuit Breaker is a reliable and versatile device that is suitable for a wide range of medium voltage applications. This device provides reliable overcurrent protection, as well as selectable neutral-to-ground fault protection, making it ideal for use in most commercial and industrial applications. With its adjustable overload setting, the 1BU5R can also provide enhanced protection of sensitive circuits. Additionally, its range of accessories can provide even greater protection against system interruptions.

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Part Number	Manufacturer	Price	Quantity	Description