View Relay Coil Wiring Diagram PNG. Pin's 1 & 3 as normally open pin's 1 & 4 as now in the diagram below i have added a motor starter. Place the relay's rated coil voltage on these terminals.
Operating and Troubleshooting Potential or Voltage Relays ... from www.achrnews.com So when wiring up these relays, the coil wire's will connect to pins 2 & 7 on the socket. Reading guidelines for ac and dc schematics in protection and control relaying (on photo: wp_ad_camp_1 contact multiplier relays are connected in parallel with the breaker contact.
The 2 coil terminals is where the voltage is placed in order to energize the coil.
When there is no voltage applied to the coil, com (common) is below given is relay driver circuit to build your own relay module: Fig.13 shows two different schematic representations of a contactors appear nearly identical to relays on schematic diagrams. Finding out how to read wiring diagrams is similar to learning a new language. Relays are (usually) incredibly reliable, and many are rated for 1,000,000 cycles (but will often last even longer).
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