HJ4-DC12V Relays

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Power Relays, Over 2 Amps

HJ4-DC12V is a DC power relay that provides switching up to 2 amperes DC (resistive) at 25VDC. This type of power relay is a compact, low-cost, low-power device that is capable of switching up to 36V VDC. It has an SPST-NO (single-pole, single-throw normally open) type of contact configuration. This type of contact configuration is ideal for applications requiring the reliable and repeatable switching of DC devices.

Application Field

HJ4-DC12V is a medium-power relay that can be used in a variety of applications such as automotive and control panel applications. This type of relay can be used for controlling devices such as motors, lights, fans, and other electrical devices. It can also be used for controlling complex systems such as automated control systems for buildings and factories. HJ4-DC12V is also suitable for use in cases where high-current applications are not suitable.

Working Principle

This type of relay operates by using a mechanically actuated electromagnet to move the relay contacts together or apart. When the coil is energized, the electromagnet’s field pulls the contacts together and closes the circuit. When the coil is de-energized, the contact opens and the circuit is broken. The HJ4-DC12V power relay is designed so that the coil is energized only when the relay contacts are closed. This ensures that the contacts close reliably and stay closed even in the case of voltage fluctuations.

The contact configuration of the HJ4-DC12V relay is also an important feature. This type of relay has a normally open contact (SPST-NO), which is ideal for switching DC devices. The SPST-NO contact configuration ensures that the contact remains open until the coil is energized. Additionally, the HJ4-DC12V can also be used with both AC and DC power. The contacts are rated for up to 2 amperes resistive at 25VDC.

In addition to the SPST-NO contact configuration, the HJ4-DC12V has an additional feature-an isolated contact. The isolated contact is designed to provide a path for the current to flow away from the relay’s main contact. This additional feature helps to reduce the chances of shorts and other electrical faults in the circuit.

Conclusion

The HJ4-DC12V power relay is a compact, low-cost, low-power device that is capable of switching up to 36V VDC. With its SPST-NO contact configuration and isolated contact, it is ideal for a variety of applications such as automotive, control panel, or complex systems. Thus, the HJ4-DC12V power relay is an excellent choice for low-current switching applications.

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