R2.172.0020.0
Dust Cover
50033742-R2.172.0020.0
Time Delay Relay 230VAC SPST-NO/SPST-NC(45x109.5x70)mm DIN Rail
a count of all of the component leads (or pins)
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A coil spike suppression diode is a protection device across the contactor coil. Energizing the contactor coil creates a magnetic field that forces the solenoid arm to engage the contacts. When the contactor is turned off, the magnetic field collapses causing a back “voltage spike” that can damage the controller.