Water Level Sensor ZP15010S Key benefits and purpose Provides reliable liquid level detection with both normally open (NO) and normally closed (NC) contacts for flexible control and alarm configurations. Stainless steel construction (SUS304 float and float body) resists corrosion and is suitable for many water and nonaggressive liquid applications. Compact, easytomount design with standard thread and nut dimensions for straightforward installation in tanks, sumps, or housings. Lowpower switching (10 W contact rating) and defined voltage/current limits make it appropriate for simple control circuits and monitoring systems. Core specifications Model: ZP15010S Contacts: NO + NC (singlepole doublethrow functionality) Max contact rating: 10 W Max switching voltage: 100 V DC Max switching current: 0.5 A Max carry current: 1.0 A Max breakdown voltage: 220 V DC Max contact resistance: 100 mΩ Temperature rating: 30 to +125 C Float ball material: SUS304 stainless steel Float body material: SUS304 stainless steel Mechanical dimensions (approximate) Float ball size: 25.9 x 26.2 mm (1.02 x 1.03 in) (L x D) Thread diameter: 9.8 mm (0.386 in) Bottom clip diameter: 15 mm (0.591 in) Hex nut size: 16.6–16.8 mm (0.654–0.661 in) Body total length: 170 mm (6.7 in) What makes this sensor stand out Dualcontact output: Both NO and NC contacts let you choose whether the circuit closes when the float rises or falls without changing wiring or components. Corrosionresistant SUS304 construction for longer service life in aqueous environments. Clear electrical limits provided so you can match the sensor to compatible switches, relays, or controller inputs. Typical applications Water storage tanks: Detect or low levels to trigger pumps or alarms and prevent overflow or dryrun conditions. Sump and drainage systems: Control pump activation and provide failsafe signals using the NO/NC contacts. Small industrial or process vessels: Monitor liquid presence and integrate directly with lowcurrent control circuits or monitoring equipment. Installation and usage notes Verify electrical ratings (max switching voltage/current and contact rating) match your control device or relay to avoid overloading the contacts. Ensure the thread diameter and hex nut size match your mounting hole and panel thickness; use the provided dimensions for planning cutouts. Clean and inspect welds and connections periodically in harsh environments to maintain reliable contact resistance and mechanical function. Compatible environments Designed for water and many noncorrosive liquids; avoid use in aggressive chemical environments unless SUS304 is suitable. Rated for operation from 30 to +125 C; confirm your application stays within this temperature range. Ordering information Model number: ZP15010S Contact configuration: NO + NC Material: SUS304 float and body Refer to the listed mechanical and electrical specifications when selecting for a specific installation.