EV500-5A

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Power relays are versatile electrical switches essential for controlling the flow of high amperage from one circuit to another. The EV500-5A power relay is one such device capable of reliably switching up to 2 amps. It is rugged and reliable with a small profile. This makes it suitable for applications in space-constrained machines and industrial control systems.

The EV500-5A comes with a five-pin design. The five pins, arranged from left to right, are coil terminals, common, normally open, normally closed, and ground. This design lets the device switch between two phases or circuits, depending on how it is wired. Naturally, the two pins tied directly to the switching mechanism are the normally open and normally closed pins. They are energized when the coil terminal receives a sufficient voltage.

The EV500-5A typically requires a voltage between 7 and 11 volts DC to operate properly. This voltage activates a solenoid inside the device, which closes the contacts to complete the circuit between the common and normally closed pin. Now, reducing the voltage to the coil terminal returns the solenoid to its original state, thus reopening the contacts and cutting the power to the normally closed pin.

In certain applications, it is beneficial to hold the power relay in a closed position, even after voltage to the coil terminal has been stopped. This is where the internal magnetism of the solenoid and plunger come into play. As long as current remains going through the solenoid, the plunger remains activated. Therefore, as soon as the voltage disappears from the coil terminal, the plunger stays activated and keeps the contacts closed in a locked position.

The EV500-5A is suitable for a variety of applications such as motor control, surge suppression, automotive and general-purpose switching. Its robust body and the ability to locking make it ideal for use in the industrial environment. Wiring the device properly ensures that it can switch up to 2-Amp without reaching its upper tolerance. Also, the EV500-5A is quite reliable and can perform up to 50 continuous operations or 500,000 electrical cycles without suffering any damage.

In summary, the EV500-5A power relay is a reliable device for controlling electrical systems. Although it requires between 7 and 11 volts DC to be energised, it has the ability to switch up to 2 amps. The five-pin design allows it to control two circuits, while the locked mode lets the device remain in its closed position even after the voltage has been stopped. This makes the EV500-5A suitable for use in motor control, surge suppression, and automotive applications.

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