Eight Stage Relay Module – IOR8

£70.00 Exc. VAT

This IO module is used with DDCs to convert an analogue control output to a staged, reverse staged, or sequenced relay output.


The IO-RM8 is intended for use with BMS controllers to convert an analogue control output to staged or sequenced relay modes.
LEDs indicate correct operation and Hand/Off/Auto jumpers ease commissioning. Low current draw from 0- 10Vdc controller output means that the IO-RM8 can work successfully with most BEMS controllers.


Input signal:                       0-10Vdc 1mA min. into 22kΩ impedance
Output contacts:               8A at 230Vac (resistive load)
Power supply:                   24Vac ±15% @ 50Hz or / 24Vdc +15% -6%, 65mA max.
Hysteresis:                        ±0.2Vdc about switching points
Operating modes:             8 Stage / 1of 8 sequenced or combination
LED indication:                  Supply OK / Supply voltage low / Supply voltage high / Relay Status / Hi input voltage / Incorrect input mode jumper selection / Low input voltage (only in 2-10Vdc mode)
Manual override:               On/Off/Auto jumper selectable
Electrical terminals:          Rising cage connectors for 0.5-2.5mm² cables
Ambient range:                 Temperature -10 to +40°C (14 to 107°F) RH 0-80% non-condensing
Dimensions (H x W x H):  72 x 156 x 55 (2.83 x 6.14 x 2.17”)

  • Link selectable modes staged or sequenced
  • On/Off/Auto links for ease of commissioning
  • DIN-Rail mounting
  • Fault finding LED indication
  • Relay status LED indication

Additional information

Weight 0.5 kg
Dimensions 33 × 10 × 5 cm


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