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Product Groups
Universal Relay Module
TRODEKS Engineering | Thermocouples, Pressure Transducers, Flow Meters, PID Controllers
  • Low-Level Input Signals—5 to 24 Vdc
  • Logic Level Inputs (TTL, CMOS, etc.)
  • Direct- or Reverse- Acting Input
  • Contact Closure Input
  • Operate Relays with Remote Switch
  • Compatible with Most PLCs and Controllers
  • Normally Open/ Normally Closed Contacts
  • Relay Status Indication on Front Panel
  • Euro-Style Pluggable Connectors
  • Panel, DIN Rail, or Wall Mountable
  • Auxiliary Power Supply Output (5 Vdc)
  • AC and DC Supply Status Indication
  • All-Aluminum Enclosure
 Manuals (contact with email : [email protected])


The versatile RELAY-URM Seriesrelay module can switch up to eight15 A loads using low-level inputsignals from PLCs, processcontrollers, and indicators. Itsflexible inputs will accept a widevariety of control signals. Selectableinput allows activation of outputrelays on a direct-acting or reverseactingsignal. Similarly, input signalscan range from 5 to 24 Vdc.Conditioning of input allowsopen-collector or logic level inputs(e.g., TTL, CMOS) from PLCs orcontrollers to be used for switching output relays. In addition to workingwith control/logic level signals, theRELAY-URM can activate outputrelays on contact closure.

Many process-control instrumentshave low-power relays that providecontact closure for low-amperageswitching but are not suitable forhandling heavy loads. Simplyconnect the low-power relay contactoutput to the RELAY-URM unit andinstantly get up to eight 15 A loadswitching relays.

Input and output connections aremade through Euro-style pluggableconnectors, conveniently located onthe top and bottom of the unit. Screw-in terminals allow for quickconnect/disconnect of wires.

The unit is housed in a versatileenclosure that can be mounted on aDIN rail or a wall. If desired, thesame enclosure can be panelmounted, with relay and AC and DCsupply status visible on the front.LEDs on the front panel turn onwhen a relay is energized.

Both 4- and 8-relay module unitscome with a built-in universalpower supply that operates on100 to 240 Vac. This supply providespower to the internal electronics andrelays and puts out up to 20 W(5 Vdc), available forexternal applications.

Relay Specifications:

   Type: Electro-mechanical relay, SPDT
   Current Rating: 15 A
   Switched Voltage: Up to 250 Vac
   Coil Voltage: 5 Vdc
   Operating Time (Typical): 10 ms
   Release Time: 5 ms
   Mechanical Life Expectancy: 10 million operations
   Temperature Rise: 25°C (45°F) at nominal coil voltage
Output Connections:
   Type: Euro-style pluggable connectors
   Terminals: Screw-type
   Terminal Spacing: 5 mm (0.196")
   Stripped length: 6 mm (0.236")
   Current Rating: 15 A
   Wire Size: 22-14 AWG
Input Connections:
   Type: Euro-style pluggable connectors
   Terminals: Screw-type
   Terminal Spacing: 3.51 mm (0.137")
   Stripped Length: 7 mm (0.275")
   Current Rating: 8 A
   Wire Size: 28-16 AWG
Power Supply:
   Universal Input: 100 to 240 Vac
   Power: 25 W
   Overvoltage Protection: 115 to 135% of output
   Leakage Current: Less than 0.5 mA
   Efficiency: 75 to 78% typical
   Output Termination: Euro-style screw terminal; dual supply output available (consult Engineering)
   Case: 114 L x 69 W x 140 mm D (4.5 x 2.7 x 5.5")
   Bezel size: 76 W x 146 H x 1.5 mm D (3.0 x 5.75 x 0.06")
   Weight: 0.9 kg (2 lb)
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