McDonnell & Miller 69 Boiler Low Water Cut-Off

McDonnell & Miller 69 Boiler Low Water Cut-Off protects steam boilers by automatically shutting down when water levels drop, preventing damage and costly shutdowns. This built-in, mechanical low-water cutoff delivers dependable protection for both residential and industrial boiler systems. The unit features a 2-1/2 inch threaded port, a compact 9-1/2 inch by 4-1/8 inch footprint, and an insertion length of 4-1/8 inch, making it easy to retrofit into compatible boiler assemblies. Rated for 120/240 VAC, it accommodates various control circuits while meeting UL, CSA, and FM safety standards.

• Type: Built-In Low Water Cut-Off
• Port Connection: 2-1/2" Threaded
• Actuation: Mechanical
• Insertion Length: 4-1/8"
• Dimensions: 9-1/2" L × 4-1/8" W
• Current Rating: 7.4 A @ 120V AC / 3.7 A @ 240V AC (full load); 44.4 A @ 120V AC / 22.2 A @ 240V AC (locked rotor)
• Media Handled: Steam, Water
• Pressure Rating: 20 psi (Steam)
• Applications: Residential, Industrial
• Standards: UL, CSA, FM