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Water Safety & Flow Control


Low Water Cut-Offs


1 in. (25mm)


Series N50 Low Water Cut-Offs are used on heating applications for low pressure, process, hot water heater boilers to protect them against emergency low water conditions. It has a float chamber that has 1 in. (25mm) NPT female top and bottom connections. Available in single (N50S) or double switch (N50D) assembly. Model N50S is for burner service with extra terminal for line voltage single pole, double throw service. Model N50D is for line voltage burner service and independent low (or high) voltage alarm, feed valve or pump starter.

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Disclaimer: Watts product dimensions in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements, please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials without prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.

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