Modular Timer Relay with OFF-Delay Function

Modular Timer Relay with OFF-Delay Function – Explained!

Have you ever wondered how machines, fans, pumps, or lighting systems continue running for a few seconds or minutes even after power is removed?

That’s where an OFF-Delay Timer Relay comes into play.

A1 & A2 – Supply voltage terminals

15 – Common terminal

16 – Normally Closed (NC) contact

18 – Normally Open (NO) contact

Y1 – Control/Input terminal

How it works:

When power is applied, the relay energizes immediately.

When power is removed, the relay remains energized for the preset time.

After the set delay expires, the relay switches OFF.

Common Applications:

• Motor Control Circuits

• Pump Automation

• Exhaust Fans

• Staircase Lighting

• Industrial Machinery

• Alarm Systems

Have you used an OFF-Delay Timer Relay in any project or industrial application? Share your experience in the comments!