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McDonnell & Miller General Catalogue Industrial Controls

McDonnell & Miller Series 94 Combination Low Water Cut-Off / Pump Controllers

• For commercial and industrial low or high pressure steam boilers
• Maintains consistent water level regardless of pressure
• For boilers of any steaming capacity
• No. 5 Switch included
• Magnetic repulsion eliminates need for bellows
• Optional features
– Manual reset
• 7B switch (135ohm proportional control signal) to maintain constant boiler water level
– BSPT threads
• 11⁄4″ NPT connections
• Maximum pressure 250 psi (17.6 kg/cm2)
• Ten bolt flange

Electrical Ratings
345 VA at 120 or 240 VAC

The McDonnell & Miller Series 94 provide continuous protection against a low water condition. Furthermore it satisfies pump control needs for commercial and industrial steam boilers.

If you need a different model other than those listed, please contact us at

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