Intermatic - GMXST-O-120 - 24-Hour 120V Electromechanical Timer, 21A WP1250MXD the new clip design allows

the new clip design allows for both a traditional square application and an offset configuration for increased shear strength

and the cushion-shock absorber / non-slip coating

then inserting it into a wall outlet

24 VAC Knockout Dimensions Back (1) 3/4" - 1" Knockout Dimensions Bottom (1) 1 1/8" diameter hole

The Felco 5-1/4 in

Intermatic - GMXST-O-120 - 24-Hour 120V Electromechanical Timer, 21A WP1250MXD the new clip design allowsSpec Sheet Install Manual Intermatic GMXST O 120 24 Hour 120V Electromechanical Timer, 15 Minute Intervals, 21A, SPDT, Type 3R Outdoor Plastic Enclosure The GMX series time switches are universal mechanical time switches. They are a low cost alternative for applications that do not require more than 21 A or 2 HP @ 240 VAC. The timer is mounted in a UL Type 1 indoor or Type 3R outdoor plastic enclosure. The GMX is a light duty commercial time switch