8007790000

Power Relays, Over 2 Amps

The 8007790000 is an AC power relay with a nominal current of 2 amps or higher. It is used in highly reliable applications where precision control of an AC current is required. The relay has a single-pole single-throw (SPST) switch, and can be used for a variety of applications such as motor protection, automatic transfer switching, and motor control. This article will discuss the application field and working principle of this power relay.

Application Field

The 8007790000 power relay is capable of controlling a variety of AC loads. It is commonly used for controlling motors, transfer switching, and circuit protection for various control systems. It can be used in applications where the circuit must be switched quickly and safely, with minimal contact chatter. Additionally, the relay is often used in industrial control systems for isolating circuits, or applications where precise timing of an electrical current is required.

Working Principle

The 8007790000 power relay is a single-pole single-throw (SPST) switch. When the contacts are open, the relay is in the off position. When the contacts are closed, the relay is in the on position. The relay consists of a coil and two contacts, which are normally open or closed depending on the coil current. When the coil is supplied with a current, it attracts the contacts, thus closing the switch. When the coil is no longer supplied with current, the contacts are released and the switch returns to its original position.

The 8007790000 has two types of coils: an electromagnet and a magnetic-latching transformer. The electromagnet coil is the more common type, and is used for controlling a wide variety of AC loads. The magnetic-latching transformer is the more specialized type, and is used in applications that require exact timing and a high level of reliability. It consists of two separate coils: the start coil and the hold coil. When the start coil is energized, the contacts are closed; when the hold coil is energized, they remain closed. This allows for precise timing of the electrical current.

Conclusion

The 8007790000 power relay is a highly reliable and versatile device, capable of controlling a wide variety of AC loads. It can be used for motor protection, automatic transfer switching, and motor control applications. Its single-pole single-throw (SPST) switch makes it easy to operate, and it is available with two types of coils – an electromagnet for general applications and a magnetic-latching transformer for precise timing. The 8007790000 is an essential component in any AC control system.