3-1393817-5

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Signal relays, up to 2 amps, refer to a type of relays with a particular set of characteristics that are useful for switching low-voltage electrical signals. The 3-1393817-5 signal relay is a typical example of this type of device. This guide provides an in-depth look at the application field, working principle, and technical specifications of the 3-1393817-5 relay.

Application Field

The 3-1393817-5 signal relay is primarily used for low-current switching applications. It is often found in industrial control and automation systems, as well as communication systems. It can be used to connect and control a wide range of components, such as actuators, motors, and pumps. It is also used to control and protect electrical circuits that are subject to potentially hazardous conditions, such as high voltages and temperatures.

Working Principle

A signal relay is an electromechanical device, which means it has both mechanical and electrical components. The 3-1393817-5 relay contains an electromagnet, which consists of a coil of wire wrapped around an iron core. When a current flows through the coil, it will generate a magnetic field which will attract a metal armature, which is attached to a switch. When the armature is in its closed position, the switch is activated and a circuit is completed, allowing electricity to flow between two points. When the current is removed, the magnetic field dissipates and the switch returns to its open position, breaking the circuit.

Technical Specifications

The 3-1393817-5 signal relay has a rated coil voltage of 12 VDC and a rated coil resistance of 150 ohms. Its maximum switching current is 2 amps and its maximum switching power is 25 Watts. The initial contact resistance is 200 milliohms. It has an operating temperature range of -40°C to +125°C and an ambient temperature range of -10°C to +85°C. It has a minimum mechanical life of 500,000 operations, with an electrical lifespan of 100,000 operations.

The relay has a contact form of 1A/1C, which means it has one normally-open and one normally-closed contact. It has a maximum contact rating of 1 A at 24 VAC/DC. Its contact voltage rating is 250 VDC or 125 VAC. The relay has a seal type rating of IP67, meaning it is dust tight and it is protected against water when fully immersed in water at depths of up to one meter. It has a total weight of 0.8 ounces.

Conclusion

The 3-1393817-5 signal relay has a wide range of uses and is an excellent choice for low-current switching applications. It has a rated voltage of 12 VDC, a rated current of 2 amps, and an IP67 waterproof seal. It has a contact form of 1A/1C, with a contact voltage rating of 250 VDC or 125 VAC. With a mechanical life of 500,000 operations and an electrical lifespan of 100,000 operations, the 3-1393817-5 relay is a reliable and durable signal relay, up to two amps.

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