SYSTEM SENSOR WFD20N

Product Overview

 The System Sensor WFD20N is a rugged, NEMA 4-rated waterflow detector for 2" steel pipe installations, suitable for indoor or outdoor use and pipe schedules 7–40. Operating from 32°F to 150°F, it offers improved damage resistance and reliable performance under vibration or sudden water surges. UL-listed models feature tamper-resistant cover screws, and an optional cover tamper switch is available. Two SPDT (Form C) synchronized switches are housed in a durable terminal block with wire-ready terminals and separate COM terminals.

Key Features

• NEMA 4-rated enclosure for indoor/outdoor use
• Designed for 2" steel pipes, schedule 7–40
• Wide temperature range: 32°F–150°F (0°C–66°C)
• Two SPDT (Form C) switches with wire-ready terminals
• Optional cover tamper switch (UL/ULC models)
• Accurate, repeatable, vibration-resistant performance
• Triggering flow: 4–10 GPM; static pressure: 450 PSI; max surge: 10 FPS
• Conduit entries: Two openings (one open, one knock-out)
• Contact ratings: 10 A @ 125/250 VAC; 2.5 A @ 6/12/24 VDC