Awareness | Common Relay forms used for QIO-GP8x8
Gain an understanding of the different relay forms used for the QIO-GP8x8.
Information
There are 3 Relay forms commonly used for contact closure setups with the QIO-GP8x8.
Form A Relay
- Normally Closed Contact opens when energized.
Form B Relay
- Normally Open Contact closes when energized.
Form C Relay
- Common connected to Normally Open when energized.
- Common connected to Normally Closed when de-energized.