Schneider-Electric 2378-501 Relay
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Schneider Electric Part # 2378-501
Pneumatic 2:1 Ratio Amplifying Relay is a proportional device designed for use in pneumatic control systems where the application requires the amplification of a proportional signal from a controlling device. The relays branch line pressure output increases as a 2:1 ratio to the input signal pressure (up to main air pressure) and amplifies the volume of air available to the final control device, thereby minimizing system lag.