4stage Relay Module


The IOR4 is intended for use with BMS controllers to convert an analogue control output to a binary, 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 IOR4 can work successfully with most BEMS controllers.

Delivery in approximately 2-5 working days (subject to availability)

Download 4stage Relay Module Datasheet

SKU: SS00560R7 Category:



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

Product Specification

  • 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%, 115mA max
  • Hysteresis: ±0.2Vdc about switching points (±0.1Vdc in binary mode)
  • Operating Modes: 2 x Raise/Lower, 4 Stage, 1 of 4 Sequenced, Binary
  • Manual Override: On/Off/Sequenced/Staged
  • Electrical Terminals: Rising cage connectors for 0.5-2.5mm² cable
  • Operating Ambient: -10°C to +40°C, RH 0-80% non-condensing
  • Dimensions: H52mm x W89mm x D83mm
4stage Relay Module


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