Red Lion Controls IFMR0066 DIN Rail Speed Switch

The Red Lion Controls IFMR0066 is a DIN-rail mounted, AC-powered speed switch that converts a frequency input into a single SPDT relay output, designed for automated speed monitoring and control in panel installations. It accepts a frequency input and can trip from 0.1 Hz to 25 kHz with overspeed, underspeed, and zero-speed detection, using a seven-position DIP switch, a rotary switch, and a pushbutton to configure the input circuit and a programmable minimum response time to balance detection with input filtering. The device is available in both 85–250 VAC and 9–32 VDC supply variants, with a 5 A relay contact rating at 240 VAC (28 VDC) and LED indicators for both input and relay status. It mounts to standard DIN rails (EN 50 022 and EN 50 035 profiles) via a universal DIN-rail foot, and is UL Recognized; operating temperature is 0°C to 50°C. Note: current distributor data show the IFMR0066 as discontinued by the manufacturer and replaced by IFM0001 with PGMMOD05 accessories.