1101 Series Noryl Indoor/Outdoor 24-hour time switch. Automatic ON - OFF control when operation is required at the same time every day, 7 days a week. Automatic operation: Minimum ON setting: 20 minutes, Minimum off setting: 75 minutes. Temporary manual override: Standard. Operating temperature range: -40??F to +165??F. (-40??C to +74??C.) Noryl NEMA 3 enclosure.