Pneumatics and Fittings

243-0024 Series

Product Bar End
Product Bar End

243-0024 Series

Siemens/Powers Reverse Acting Relay 243-0024 Series

Siemens/Powers Reverse Acting Relay


The Siemens/Powers 243-0024 Series Reverse Acting Relay provides a proportional output signal that varies inversely with the input signal. A spring adjustment is provided to allow setting a desired reverse acting schedule required by a particular application.


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  • Lightweight and small in size
  • Can be mounted in any position (mounting bracket and screws included)
  • Field adjustable spring range
  • Can be used as a signal inverting relay
  • Force-balance operation minimizes air consumption
  • Internal relief provides fail-safe operation
  • Amplifies air volume to minimize system lag

Operating Range: 0 to 30 psi (0 to 207 kPa)

Adjustment Using 5/64″ (2 mm) Hex Wrench:

Range Adjustment: 10 to 30 psi (69 to 207 kPa)

Factory Setting: 15 psi (103 kPa)

Maximum Air Pressure: 30 psig (207 kPa)

Ambient Temperature Range:140℉ (60℃)

Air Connections: Barbed nipple for 1/4″ OD polyethylene tubing

Mounting: Mounting bracket provided

Air Capacity : 230 scim (63 ml/sec)

Air Consumption for Compressor Sizing:29 scim (8 ml/sec)

Housing: Glass-filled nylon

Weight: 0.27 lb (0.13 kg)