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Siemens 243 Reverse Acting Relay

Reverse Acting Relay

The 243 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.

• Lightweight and compact
• 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

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Cat #Descriptions
243-0024Reverse Acting Relay
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 Ambient Temperature: 104°F (60°C)
Maximum Air Pressure: 30 psi (207 kPa)
Air Capacity: 230 scim (63 ml/s)
Air Consumption for:
Air Compressor Sizing:
29 scim (8 ml/s)
Material: Housing Glass-filled Nylon
Air Connections: Barbed nipple for
1/4" (6 mm) OD polyethylene tubing
Mounting: Mounting bracket included
Shipping Weight: 0.27 lb. (0.13 kg)

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