Belling electrical systems, The Parmotor Relay

Belling electrical systems, The Parmotor Relay, for automatically controlling electrical circuits. Showing the Relay itself, with and without cover, air thermostat, water thermostat, and temperature controls for rooms, cooking equipment and water

Hi-Res image available upon request

Automatic Belling Circuit Circuits Component Controlling Controls Cooker Fires Heater Heaters Heating Immersion Oven Pans Pots Relay Temperature Thermostat Warming

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