RB-24SE Low Water Cut-Off
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Plug. Play. Protect.
RB-24SE Low Water Cut-Offs are specially designed to protect hot water boilers from the hazards of a low water condition. In operation, they will interrupt the electrical current to the firing device if the water in the system drops below the boiler manufacturer’s minimum safe water level. Series RB-24SE Low Water Cut-Offs are available in a range of models with easy plug and play wiring compatible with the most popular boilers. From Honeywell Aquastat L7148 and United Technology boiler controls to Weil McLain Ultra, and Lochinivar Knight and Solution boilers McDonnel & Miller has you covered.
The RB-24SE low water cut-off offers several features:
- Patented Self-Cleaning Probe minimizes scale build-up and extends recommended cleaning interval to 5 years
- Brass threads provide a metal-to-metal seal that ensures a leak-free installation
- Integrated wrench flats enable secure installation without damage to the housing
- “Plug & Play” wiring harnesses are available for most residential gas-burning boilers
- Push-to-Test Button enables low water cut-off protection to be verified without draining any part of the system
The RB-24SE is for residential hot water boiler applications and replaces legacy model RB-24E. Ask your McDonnell & Miller factory representative or your local wholesalers which control fits your boiler application.