SJE PumpMaster® WPS NSF61 Wide-Angle Float Switch | Non-Mercury | UL, CSA, NSF/ANSI 61 Certified Reliable Potable Water Float Switch for Pump Control The SJE PumpMaster® WPS float switch is a mechanically activated, wide-angle float switch designed for automatic pump control in potable water and clean water systems. Built for durability and certified to NSF/ANSI 61 standards, this potable water float switch is safe for use in drinking water applications, making it ideal for cisterns, water tanks, and well systems. Designed for direct operation, the SJE PumpMaster float switch can control pumps up to 1/2 HP at 120 VAC and 1 HP at 230 VAC, or low-current control applications down to 120 VAC, 100 mA. With a rugged, non-mercury design and flexible SPDT wiring, this float level switch delivers dependable performance in both residential and light industrial environments. Key Features of the SJE PumpMaster® WPS Potable Water Float Switch NSF/ANSI 61 Certified for Potable Water: Approved for use in drinking water systems and tanks 250 gallons or larger, ensuring safe operation in potable water applications. Wide Angle Float Switch (7”–36” Adjustable Range): Provides a large pumping differential, reducing pump cycling and extending equipment life. SPDT Switch (Normally Open / Normally Closed): Can be wired for pump down (normally open) or pump up (normally closed) applications for maximum flexibility. Direct Pump Control Capability: Controls pumps up to 1/2 HP (120V) and 1 HP (230V) without requiring additional control panels. Non-Mercury, Eco-Friendly Design: Safe for both users and the environment. Built for Harsh Conditions: High-impact, corrosion-resistant PVC housing ensures long-term durability. Not Sensitive to Turbulence: Operates reliably in both calm and turbulent water conditions. Includes External Cable Weight: Allows easy adjustment of tether length and pumping range. IPX8 Rated (Fully Submersible): Designed for continuous submersion in water environments. 5-Year Manufacturer Warranty: Built for long-term reliability and backed by SJE Rhombus. How the SJE PumpMaster® WPS Potable Water Float Switch Works This water float switch automatically controls pump operation based on the liquid level: As water rises or falls, the float tilts with the level The internal switch activates at a set angle The pump turns ON or OFF depending on the wiring configuration This simple, mechanical design ensures reliable operation without complex electronics. Pump Up vs Pump Down (Wiring Explained) The SJE PumpMaster float switch uses a Single Pole, Double Throw (SPDT) design, allowing flexible wiring: Pump Down (Normally Open)The switch activates when water rises → used for draining tanks or sump pits Pump Up (Normally Closed)The switch activates when water drops → used for filling tanks or maintaining levels This flexibility makes it an ideal float switch for water tanks, cisterns, and storage systems. Applications The SJE PumpMaster® WPS potable water float switch is ideal for: Potable water tanks Cisterns and storage tanks Well systems Water transfer systems Agricultural water applications Residential and light commercial pump control Designed specifically for clean water environments, this float level switch ensures safe and reliable operation in drinking water systems. SJE PumpMaster® WPS Float Switch Specifications Specification Details Wiring Options Normally Open (N.O.) / Normally Closed (N.C.), SPDT Cable 16 AWG, 3-conductor SJOW, water-resistant (CPE) Float Material High-impact, corrosion-resistant PVC Float Dimensions 3.05” diameter x 3.56” length Temperature Rating Up to 140°F (60°C) Adjustable Pumping Range 7” to 36” (18–91 cm) Voltage 120/230 VAC, 50/60 Hz Max Pump Running Current 13 amps Max Pump Starting Current 85 amps Minimum Electrical Load 120 VAC, 100 mA Enclosure Rating IPX8 (submersible) Certifications NSF/ANSI 61, CSA, UL Warranty 5 Years Note: This switch must be used with pumps that provide integral thermal overload protection and is not intended to control non-arcing loads. Available Cable Length Options The SJE PumpMaster® WPS potable water float switch is available in two cable length configurations to suit your installation requirements: 15 ft model 30 ft model Both options include an external cable weight and are designed for reliable operation in water level control applications. What’s Included SJE PumpMaster® WPS float switch External cable weight Pre-wired 3-conductor cable Installation-ready configuration Explore More Pump Control & Float Switch Solutions Float Switches & Accessories – Browse a full range of float switches, cable weights, and mounting accessories for water-level control and pump automation systems. Tank Alarm Systems – Monitor liquid levels with reliable high/low tank alert alarm systems compatible with float switches like the SJE PumpMaster® WPS. Order the SJE PumpMaster® WPS Potable Water Float Switch Online Buy the SJE PumpMaster® WPS float switch, a trusted potable water float switch and wide-angle float switch, online from Cleanflow. We supply high-quality water float switches and pump control solutions across Canada and the USA, offering fast shipping, competitive pricing, and expert support. Explore more SJE Rhombus Controls & Alarms for additional float switches, pump controls, and water level management solutions. FAQs What is a potable water float switch? A potable water float switch is designed and certified (NSF/ANSI 61) for safe use in drinking water systems, ensuring materials do not contaminate water. How to wire a float switch? This switch uses a 3-wire SPDT configuration: Common (white) Normally Open (black) Normally Closed (red) You can wire it for pump-up or pump-down operation, depending on your application. What is a wide-angle float switch? A wide-angle float switch has a larger activation range (7”–36”), allowing greater level variation before switching. This reduces pump cycling and improves efficiency. Can this float switch control a pump directly? Yes. The SJE PumpMaster WPS is designed for direct pump control up to: 1/2 HP at 120V 1 HP at 230V Is this float switch safe for drinking water? Yes. It is NSF/ANSI 61 certified, making it safe for potable water applications. What size tank can this be used in? It is approved for use in tanks 250 gallons (950L) or larger. What is the SJE PumpMaster® WPS pump switch used for? The SJE PumpMaster® WPS pump switch is used to automatically control pump operation based on water levels in tanks, cisterns, and wells. This wide-angle float switch activates the pump when liquid levels rise or fall, helping prevent overflow or dry running. It is commonly used in potable water systems and water storage applications where reliable, automatic pump control is required.
