Water Level Sensor Float Switch PP Automatic Level Control for Tank, Durable Water Resistant Design

Product: Water Level Sensor, model ZP3208P Overview This float switch senses liquid level inside a tank and provides reliable on/off output for pumps, indicators, or other control devices. It features both normally open and normally closed contacts and can be converted between NO and NC by inverting the float. The compact polypropylene construction is suitable for general water and noncorrosive liquid applications. Key benefits Simple level switching: Detects liquid level and triggers pumps or indicators without complex electronics. Convertible contact action: Change between normally open and normally closed by inverting the float for flexible installation. Compact and easy to fit: Small thread and body dimensions allow installation in tight spaces and standard fittings. Durable plastic construction: Float ball and body are made of polypropylene for resistance to common liquids. Clear electrical limits: Know exact switching and carry ratings to plan use with relays or contactors. Important electrical note The switch has a low switching current rating. Maximum switching current is 0.5 A and maximum contact rating is 10 W. Use a suitable relay or contactor when switching higher loads. Relays or contactors are not included. Key specifications Model: ZP3208P Contacts: NO plus NC (convertible by inverting the float) Max contact rating: 10 W Max switching voltage: 100 V DC Max switching current: 0.5 A Max breakdown voltage: 220 V DC Max carry current: 1.0 A Max contact resistance: 100 milliohms Temperature rating: 10 +60C / 85C Float ball material: polypropylene (PP) Float body material: polypropylene (PP) Float ball size: 16.5 x 19 mm (0.65 x 0.748 in) Thread diameter: 7.3 mm (0.287 in) Hex nut size: 12.4 mm (0.488 in) Bottom clip diameter: 14.4 mm (0.567 in) Body total length: 45 mm (1.8 in) Typical applications Domestic water tanks: Automatically start and stop a pump to maintain tank level while using a relay to handle pump current. Sump or drainage systems: Provide level detection to control a sump pump or activate an alarm through a relay interface. Small process or utility tanks: Monitor liquid level for filling, draining, or signaling in lightduty industrial or workshop equipment. Installation tips Confirm the switch electrical limits and wire through a relay or contactor when controlling pumps or other loads that exceed 0.5 A or 10 W. Select a mounting point that allows the float to move and avoid obstructions. Tighten the hex nut to secure the switch in the threaded fitting; check sealing and orientation so the float can be inverted if you need the opposite contact action. This model provides a simple, lowcost solution for basic liquid level detection where compact size and convertible contact action are required.