Generic 520736 Flow Switch — 3-Wire Replacement for Pentair IntelliChlor IC15/IC20/IC40/IC60 (Metal Flap)

Overview

The Generic 520736 flow switch is designed as a versatile replacement for Pentair IntelliChlor cells, offering a reliable 3-wire connection option that fits IC15, IC20, IC40, and IC60 systems. This part emphasizes robust construction, easy installation, and practical wiring guidance to help pool owners keep their salt chlorinators running smoothly. While not a guarantee of results, you may experience smoother flow sensing and dependable operation with a durable, weather-ready design.

Key Benefits

• Durable construction with a stainless steel sensor paddle and rugged body for long-term use in pool environments.
• Plug-and-play waterproof connector and a 15-foot cable provide flexible routing and simple setup.
• Impact-resistant housing and moisture-resistant caps help protect the electronics from humidity and splashes.
• Out-of-the-box installation is aided by pre-wrapped PTFE tape, supporting a quick, tool-free start for DIY installs.
• Clear flow direction arrows ensure correct orientation during installation, reducing the risk of misalignment.
• Compatibility spans multiple IntelliChlor models, including IC-15, IC-20, IC-40, and IC-60 systems.

Wiring and Compatibility

Important compatibility notes: IntelliChlor cells manufactured before September 2018 use 4 wires (red/black and green/white) for switch connections, while post-September 2018 cells use 3 wires (red/black/white). The 3-wire flow switch can be used with older 4-wire cells, but a 4-wire switch is not suitable for the newer cells. When installing a 3-wire flow switch on an older 4-wire cell, connect the green wire directly to the cell (do not connect to the 3-wire switch); match the white wire to the switch’s white; connect red to red; and black to black on the 3-wire switch.

Installation and Build Quality

Designed for straightforward setup, the 520736 item ships with wiring and components that support quick activation. The plug-and-play connector simplifies wiring, while the durable housing is built to withstand outdoor poolside conditions. The included pre-wrapped tape and straightforward flow arrows help reduce guesswork during installation, making it a practical upgrade for existing IntelliChlor systems.

Note: This replacement part is listed as 520736 and is compatible with older and newer IntelliChlor configurations when wired according to the guidance above.