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Power Relays - Over 2 Amps

G5NB-1A DC 18 Application Field and Working Principle

Power relays are electromagnetic switches designed to control and protect motors, generators, pumps and other electric loads. G5NB-1A DC 18 relays are specially designed for specific applications where high switching capacity and reliable operation are desired.

G5NB-1A DC 18 relays are mainly used in electric power conversion and motor control systems, such as air conditioners, water pumps, elevators, and electric fans. They provide high switching capacity, long life and low contact resistance that ensure reliable and stable electrical control and performance.

Working Principle

G5NB-1A DC 18 relays work on a simple principle. When energized, an electric current will flow through the coil inside the relay. This electric current produces a magnetic field which then causes the movable contacts to move. When the contact points move, the circuit is closed or opened, allowing the electric current to flow or not to, depending on the design of the relay.

These relays can be used to control the on/off state of the motor or load. For example, they can be used to control the on/off state of an electric fan. When the fan is switched on, the movable contacts close and the electric current is allowed to flow through the fan, causing it to start spinning. When the fan is switched off, the contacts open and the current stops. This simple process allows for a quick and reliable control of electric motors, pumps and other electric loads.

Specifications

G5NB-1A DC 18 relays come with several features and specifications that make them suitable for specific applications. These relays have an operating voltage of 18V DC, a coil power rating of 15W, and a contact rating of 10A/250 V AC. They also have a contact material of silver-based alloy, a moving contact life of 1 million operations (min) and a static contact life of 10 million operations (min).

In addition, these relays have a temperature control range of -10°C to 55°C, a dielectric strength of 2500VAC (50/60 Hz) for 1min., a resistance of 50mΩ(50mA 500V DC) and an insulation resistance of 1000MΩ(100V DC). Furthermore, they are UL, CE and cUL approved.

Conclusion

G5NB-1A DC 18 relays are highly reliable and highly efficient relays designed for specific applications where high switching capacity and reliable operation are desired. Their simple working principle and versatile specifications make these relays ideal for electric power conversion and motor control systems.

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