Timer Relay Wiring Diagram Explained for Beginners

Understanding the wiring of a timer relay is essential for proper installation and operation.

Basic Terminals:

Most timer relays include the following terminals:

- Power supply terminals (A1& A2,orA2&A3)

- Common (COM)

- Normally Open (NO)

- Normally Closed (NC)

Wiring Principle:

When power is applied, the timer begins its function depending on the selected mode. The output contacts switch according to the preset timing logic.

Example:

In an off delay timer relay, the relay activates immediately when powered, and remains active for a set time after power is removed.

Common Applications:

- Motor control systems

- Pump automation

- Lighting delay systems

Always ensure correct voltage and wiring according to the product manual to avoid malfunction.

For reliable and easy-to-install timer relays, check our DIN rail timer relay series.