1D4UR

Series:	*
Part Status:	Active
Lead Free Status / RoHS Status:	--
Moisture Sensitivity Level (MSL):	--

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Circuit Breakers: 1D4UR Application Field and Working Principle

Circuit breakers are electrical protection devices that are used to protect circuits and components from damage due to faults and overcurrents. 1D4UR is a type of miniature circuit breaker that is widely used in many industrial and commercial applications. It is specifically designed to cut off power supply to a circuit when the current exceeds a certain level.The 1D4UR has a reputation for being robust and reliable and is used to protect both people and equipment against electrical shocks and/or fire due to incorrectly wired circuits, short circuits, and overloads. The 1D4UR offers four-pole switching operations and provides reliable electrical protection up to 1250 Amps. It also has a number of different trip settings, allowing it to be tailored to the specific application.The 1D4UR is designed to detect any abnormal electrical situation in a circuit and respond accordingly. It has two components: a thermal-magnetic or magneto-thermal trip unit and a thermal-magnetic release unit. The thermal-magnetic trip unit detects increases in current and sends an electrical signal to the thermal-magnetic release unit, which triggers the mechanical release of the circuit breaker.The thermal-magnetic trip unit consists of a bimetal strip and an electromagnet. The bimetal strip is a thin sheet of metal made up of two different metals with different thermal expansion coefficients. When current passes through the bimetal strip, it heats up, causing one side to expand faster than the other, resulting in the strip bending and triggering the electromagnet. This causes the breaker to trip and cut the power supply to the circuit.The thermomagnetic release unit is a combination of an electromagnet and a bimetal strip. When a current is overrunning, the electromagnet becomes magnetized, which causes the bimetal strip to move and actuate the mechanical mechanism to trip the circuit breaker. In order to reset the 1D4UR, the electromagnet must be disengaged. This can be done automatically when the power is restored, or manually by pressing a reset button on the breaker.The 1D4UR circuit breaker is highly reliable and widely used in many industrial and commercial applications. It is a reliable, cost effective, and easy-to-install solution for providing electrical protection against short circuits, over-currents, and overloads. And since it is designed to detect any abnormal electrical situation in a circuit, it can help prevent costly damage to expensive equipment as well as provide a safer environment for people.

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