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Solid State Relays

Solid State Relays (SSR) are a type of switching device commonly used in the industrial automation sector for controlling high-level electrical signals. This type of relay is considered an ideal replacement for traditional contactors or even electromechanical relays. SSRs provide a range of advantages over traditional relays, such as greater speed and durability, as well as lower power consumption.

84137300 Application Field and Working Principle

The 84137300 Solid State Relay is designed for use with high-level loads in industrial and commercial applications. This type of SSR features a solid-state electronic switching device rated for voltage up to 600VAC and current up to 20A. It is suitable for controlling both AC and DC motors, as well as for activating the main power supply when needed.

The working principle of the 84137300 Solid State Relay is the same as that of other SSRs. When the set operating current passes through the control circuit, it switches the main circuit on or off. This SSR requires an input voltage of 24VAC/DC. The set operating current is adjustable to current values ranging from 0.5 to 15A, depending on the model.

This SSR can be used for zero switching, with a voltage of 12V and a maximum switch-off current of 15A. It is also equipped with over-temperature protection, where the unit will shut down automatically if the temperature rises above the specified limit. The SSR is also equipped with auto restart capability, which allows the unit to restart without user intervention.

The 84137300 Solid State Relay is RoHS compliant and is suitable for use in environments ranging from -40°C to +85°C. This SSR is also UL94 V-1 flammability grade approved, which makes it a reliable and safe choice for use in high-load applications.

Benefits of Using SSRs

SSRs are typically used in place of electromechanical relays, as they provide a number of advantages over the latter. Unlike electromechanical relays, SSRs are faster and more energy efficient, as they require less power to operate. They can switch on and off more quickly with minimal contact bounce, which reduces the risk of arcing and the associated safety hazards. Furthermore, they offer better protection against voltage spikes and reversals, eliminating the need for additional surge suppression equipment.

SSRs are also much more durable, as they don’t have any moving parts and the contacts don’t suffer from wear and tear. This means that SSRs require much less maintenance and can last for longer periods of time than traditional electromechanical relays.

Conclusion

The 84137300 Solid State Relay is an excellent choice for a wide range of applications in industrial and commercial settings. Its features make it a reliable and safe device for controlling high-level electrical signals, as well as activating the main power supply when required. Furthermore, using SSRs instead of traditional electromechanical relays provides numerous benefits and increases the system’s efficiency and safety.

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