EngineersGarage

  • Engineers Garage Main Site
  • Visit our active EE Forums
    • EDABoard.com
    • Electro-Tech-Online
  • Projects & Tutorials
    • Circuits
    • Electronic Projects
    • Tutorials
    • Components
  • Digi-Key Store
    • Cables, Wires
    • Connectors, Interconnect
    • Discrete
    • Electromechanical
    • Embedded Computers
    • Enclosures, Hardware, Office
    • Integrated Circuits (ICs)
    • Isolators
    • LED/Optoelectronics
    • Passive
    • Power, Circuit Protection
    • Programmers
    • RF, Wireless
    • Semiconductors
    • Sensors, Transducers
    • Test Products
    • Tools
  • Advertise
You are here: Home / Replies / You can follow the procedure

You can follow the procedure

|

Electronics › Electronics › doubt regarding relay connection › You can follow the procedure

April 12, 2012 at 10:06 am #7420
AJISH ALFRED
Participant

You can follow the procedure to find out pins of any relay.

Apply voltage less than the rated voltage to each possible pair of pins. Whenever you get a clicking sound, those are terminals of the relay coil. Now take multimeter and put it in the continuity mode. Take a pair from the remaining three pins. When you get the beep sound from multimeter, those two pins are normally closed (NC). The last remaining pin forms a normally open (NO) with any one of the pins in NC pair. To find out this common pin, once again apply voltage to the terminals of the coil and find out, with which pin our last pin shows continuity, using a multimeter.

Now you know the coil terminals, common pin, NC pair and NO pair.

RSS Recent Posts

  • Faulty heat air gun (dc motor) - problem to locate fault due to Intermittent fault July 19, 2025
  • Fun with AI and swordfish basic July 19, 2025
  • Does US electric code allow branching ? July 19, 2025
  • Sump pit water alarm - Kicad 9 July 19, 2025
  • turbo jet fan - feedback appreciated. July 19, 2025

Stay Up To Date

Newsletter Signup
EngineersGarage

Copyright © 2025 WTWH Media LLC. All Rights Reserved. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media
Privacy Policy | Advertising | About Us

Search Engineers Garage

  • Engineers Garage Main Site
  • Visit our active EE Forums
    • EDABoard.com
    • Electro-Tech-Online
  • Projects & Tutorials
    • Circuits
    • Electronic Projects
    • Tutorials
    • Components
  • Digi-Key Store
    • Cables, Wires
    • Connectors, Interconnect
    • Discrete
    • Electromechanical
    • Embedded Computers
    • Enclosures, Hardware, Office
    • Integrated Circuits (ICs)
    • Isolators
    • LED/Optoelectronics
    • Passive
    • Power, Circuit Protection
    • Programmers
    • RF, Wireless
    • Semiconductors
    • Sensors, Transducers
    • Test Products
    • Tools
  • Advertise