Intermatic GMXSW-O-240

Intermatic GMXSW-O-240

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Item# Intermatic GMXSW-O-240

Model Number


  • Universal, mechanical time switches
  • Low cost alternative for applications that do not require more than 21 Amp or 2 HP,
    240 VAC
  • NEMA 1 Indoor or NEMA 3R Outdoor enclosure
  • 21 Amp Rating
  • NEMA 1 Indoor or 3R Outdoor enclosure
  • SPDT Switch
  • Captive trippers with intervals of 15 minutes on 24-hour models
    (2 hours on 7-day models)
  • True clock face, easy to set
  • Finger safe terminals
  • Enclosure provides space for field added contactor or other accessories


The GMX is a light duty commercial time switch ideal for 24, 120, or 240 VAC single
phase applications such as:

Lighting Control Access Control
Heating, Air-Conditioning Agricultural Facilities
Pumps/Motors/Fan Controls General Purpose Electrical Circuits


Operating Temperature Range: S models 40F to 185F (40C to 85C)
Q models 20F to 131F (20C to 55C)
Enclosure: NEMA 1 or 3R

Model Number: GMXSW-O-240

Enclosure: NEMA 3R Outdoor Volts AC: 240 Battery Backup: No Switch Rating: SPDT, 21 Amp Min ON/Off Time: 2 hours







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