Product Overview The RL-4 Quad Relay Module provides four independent Form “C” relay contacts. The relays are energized by applying a positive or negative voltage at the input terminal(s). You can choose positive or negative voltage by the setting of the jumper. Main Features Quad Relay Module Provides Four Independent Form C Relay Contacts The Relays are Energized by Applying a Positive or Negative Voltage at the Input Terminal Show More Show Less
