This includes Interface relay modules with DC input voltages of 5V DC, 12V DC, 24V DC, 48V DC & 110V DC. Option of negative common or positive common is available with the help of jumpers. Customized solutions are also provided on request as per need.

• Relay works on the principle of electromagnetic induction.
• When the electromagnet is applied with some current, it induces a magnetic field around it.
• Above image shows working of the relay. A switch is used to apply DC current to the load.
• In the relay, Copper coil and the iron core acts as electromagnet.
• When the coil is applied with DC current, it starts attracting the contact as shown. This is called energizing of relay.
• When the supply is removed it retrieves back to the original position. This is called De energizing of relay.