McDonnell & Miller 157S-M-MD Low Water Cut-Off and Pump Controller

Product Description

The McDonnell & Miller 157S-M-MD is a low water cut-off and pump controller that ensures safe operation in various boiler applications. This unit is designed with a manual reset snap-acting single pole double throw switch. It operates effectively in residential, commercial, and industrial settings. Its float chamber contains an integrated water column and a Monel bellows for added durability.

• Manual reset feature included
• Single pole, single throw switch for pump control
• Single pole, double throw switch for low water cut-off and alarm

Product Highlights

Product Information

Standard Information

• Brand: McDonnell & Miller
• MPN: 157S-M-MD

Technical Specifications

• Model: 157S-M-MD
• Series: Series 157S
• Application: Steam Boilers
• Control Reset: Manual
• Control Switch: SWA-150S-M
• Voltage: 120V, 240V
• Maximum Pressure: 50 psi
• Connection Size: 1 inch
• Control Connection: NPT
• Installation Method: 1 Equalizing Piping
• Bellows Material: Monel
• Connection Type: screwed