Hydrolevel 450 Boiler Low Water Cut-Off

The Hydrolevel 450 Boiler Low Water Cut-Off is a reliable safety device designed to protect boilers from low water conditions. This SPDT switch-type cutoff provides automatic reset and a precise burner delay to ensure safe startups and shutdowns.

Built for residential and commercial boiler systems, it handles steam and water media with UL-listed reliability. Key specs include 120 V AC, 60 Hz input, 4 VA, and a 15 PSI pressure rating. The unit features an automatic reset, a 15-second burner OFF and 30-second burner ON delay, and a low-water indicating light to alert operators at a glance. Its compact footprint (2-3/8" W x 5-1/2" D x 5-9/16" H) fits tight boiler rooms, while a robust switching capacity (5.8 A full load, 34.8 A locked rotor) powers modern boiler controls.

• SPDT switch type for reliable boiler protection
• Automatic Reset with built-in burner delay
• Burner delay 15 seconds OFF / 30 seconds ON
• Low-water indicating light for quick status checks
• UL listed safety certification
• Electrical & media rated for 120V AC, 60 Hz; handles steam and water
• Compact dimensions 2-3/8" W x 5-1/2" D x 5-9/16" H
• Applications suitable for residential and commercial boilers
• Performance 5.8 A full load / 34.8 A locked rotor