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Power Relays, Over 2 Amps

SP4-P-DC12V is a reliable and cost-effective industrial power relay applicable to various switch control and protection circuits. It is safe, fast and easy to use and is widely used in various control systems, industrial automation and automated equipment.

Application Field

SP4-P-DC12V can be widely used on radio equipment and household appliances. It is suitable for electrical testing, radio transmitting, remote controlling, communications, medical equipment, automatic office equipment, automatic power switch, automatic controller, motor systems, security systems, etc.

Working Principle

SP4-P-DC12V is an electromechanical device that consists of an electromagnet that is actuated by electrical power to move and control an armature mounted to a spring. When power is applied, the electromagnet pulls the armature and the two spring-loaded contacts move into contact, connecting the power. When power is removed, the spring restores the contacts to their original state, disconnecting the power. The electrical connections are made and broken by the movement of the armature in response to the electro-magnetic field created by the coil.

In applications where an SP4-P-DC12V relay is used, the coil of the device is usually supplied with pulsed direct current. This produces an intermittent electromagnetic field which acts on the armature. The resulting motion of the armature makes or breaks a contact or contacts, thus controlling electrical circuits. These circuits can be used to switch a variety of AC or DC devices, such as lamps, motors, pumps or valves.

SP4-P-DC12V can also be used to provide safety interlock, so that when a fault is detected in the system, the current supply to the device is disregulated and it cannot be operated. This is an important safety feature and helps to reduce the risk of electric fire or shock.

The SP4-P-DC12V is reliable and durable, and is capable of safely handling loads of up to 12 Volts. It can be used in a variety of switch control and protection circuits, and is particularly suited for use in the automotive, telecommunications, medical, and industrial automation industries.

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