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Contactors can produce high voltage spikes when their coils are de-energized. If unsuppressed, these transient voltages can damage devices in the circuit and affect neighboring electronics. Zener (TVS), Varistor (MOV), and RC surge suppressors are available for contactor coils up to 250 VAC/VDC.
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Contactors can produce high voltage spikes when their coils are de-energized. If unsuppressed, these transient voltages can damage PLC outputs, contactor coils, or affect neighboring electronics.
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