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Type RIU-08EC

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High Density Mounting Design Incorporating Ultra-High Reliability Relays Ideally Used as I/O Relay Units for Micromputer Boards, PC and NC Control Boards

  1. 4, 8, 10 and 16 contacts per unit, high density mounting design.
  2. Can be energized using TTL electronic level signals or open collector input.
  3. Also available in a photocoupler isolation type.
  4. Minimum space needed due to compact size.
  5. Provided with operational display (LED).
  6. Incorporated features of the relay units:
    • Hermetically sealed contacts assure high long-term reliability even in adverse environments.
    • Large-capacity switching permits direct switching of large magnetic contactors, DC solenoid valves, etc.
    • Surgeless switching The unique breaking mechanism minimizes surge when magnetic coil is opened.
Common Specifications
  • Operating voltage :24VDC or 12VDC
  • Voltage fluctuation range:Rated voltage -15% to +10%
  • Operating temperature range: -10 to +60°C
  • Operating humidity range: 85%RH or less
  • Storage temperature range: -25 to+80°C
  • Vibration resistance : 19.6m/s2 (2G) (10 to 55Hz)
  • Impact resistance : 98.0m/s2 (10G)

 Specifications   Output Specifications   Input Specifications   Figure Specifications   Contact Specifications   



Number of Circuits


Supply Voltage


Contact Configuration


Input Circuit Configuration

2 circuits common x 4

Weight (g)



The connector is supplied with the main unit.
Type RIU-08F, -16A and -10A use a connector that is to be soldered.


·  Polarity Table for Wiring

·  Dimensions in mm

·  RIU-08E/G config diagram


Input Specifications

Output Specifications (Relay Rating)

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