The FF46H is a DSPT spring wound timer that operates at 125V to 277V, 20A, and 50/60 Hz frequency.  It is constructed with a sturdy brushed metal plastic dial that provides excellent protection from wear.  UL-recognized, RoHS Compliant, and CSA-certified

The spring wound countdown timer is suitable for indoor or outdoor lighting, motor, air movement, and ventilation applications.  The unit is designed with a 6-hour countdown time interval and requires no electricity to run which saves cost and maintenance.

The FF46H is easy to install with a press-on knob and teeter-type terminals for quick mounting.  It replaces standard and decorator-style wall, single, or multi-gang switches.  The 146MT577 white knob and 146MT579 black knob replacement parts are also available.