McDonnell & Miller RB-24E-L Boiler Low Water Cut-OffRB 24E L Boiler Low Water Cut Off by McDonnell & Miller delivers reliable protection for residential boilers. This probe type low water cutoff uses solid state electronic actuation to detect low water conditions and provide automatic reset, helping prevent dry fires and equipment damage. Designed for easy installation with a 3 4 inch threaded port, the RB 24E L supports 24 VAC input and delivers a stable 2 A current rating for dependable operation.

Relays supported: igniter

Current rating: 20A contact rating for dependable power switching

Built for rugged environments

robust port sizing

Inlet filtered screen and regulator conversion kit are included for easier retrofit and maintenance

the HS-300G-PL part minimizes downtime and helps restore optimal flow and efficiency in your circulating system

Compatible with PSU10

making it suitable for many heating and cooling setups

while maintaining NEMA 1 protection for basic indoor use

process drying

000 BTU/hr

Hearth product