Best 20 Amp Timer Switch Heavy Duty in 2025
Updated on June 2025
#1
Recommended
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- Provides 36 ON/OFF events every 24 hours for precise control of electrical devices.
- Captive trippers with 20-minute intervals ensure reliable operation and prevent loss.
- Features a 3-way switch for flexible installation with various wiring setups.
- 3-position override allows for continuous ON/OFF operation or automatic control for convenience.
- Heavy-duty 20 A rating supports high-power devices, designed for simple installation with multiple wall plates and requires a neutral connection.
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- Provides 36 ON/OFF events every 24 hours for precise control of electrical devices.
- Captive trippers with 20-minute intervals ensure reliable operation and prevent loss.
- Features a 3-way switch for flexible installation with various wiring setups.
- 3-position override allows for continuous ON/OFF operation or automatic control for convenience.
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#2
Value for Money
17% Off
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- Daily programmable timer with 24 ON/OFF settings
- Suitable for spas, pools, fountains, lighting, and pumps
- Durable metal box with lockable access and multiple knockouts
- Heavy-duty gear train with secure, non-removable pins
- Manual override switch compatible with various voltage and load types
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- Daily programmable timer with 24 ON/OFF settings
- Suitable for spas, pools, fountains, lighting, and pumps
- Durable metal box with lockable access and multiple knockouts
- Heavy-duty gear train with secure, non-removable pins
- Manual override switch compatible with various voltage and load types
#3
14% Off
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- Programmable up to 20 ON/OFF schedules with options for 7-day repeats or single-day settings, including Always ON/OFF, AUTO ON/OFF, and Daylight Saving Time modes.
- Supports high-power applications with heavy-duty 40 Amp capacity, capable of controlling two units simultaneously; ideal for pool pumps, heaters, filters, and motor-driven equipment.
- Includes a backup battery that retains settings for three months, ensuring no loss of timing in case of power outages, offering convenience and reliability.
- Constructed with weather-resistant materials, the unit operates in extreme temperatures from -40℉ to 140℉, featuring UV resistance and drainage holes to prevent water ingress.
- Simplified installation with a removable timer module and adjustable wiring apertures, along with included wiring caps for an easy setup.
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- Programmable up to 20 ON/OFF schedules with options for 7-day repeats or single-day settings, including Always ON/OFF, AUTO ON/OFF, and Daylight Saving Time modes.
- Supports high-power applications with heavy-duty 40 Amp capacity, capable of controlling two units simultaneously; ideal for pool pumps, heaters, filters, and motor-driven equipment.
- Includes a backup battery that retains settings for three months, ensuring no loss of timing in case of power outages, offering convenience and reliability.
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#4
22% Off
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- Replaces standard wall switch with a countdown timer for automated operation of fans, motors, and lights with four preset time options.
- Shallow design for easy installation in wall boxes; compatible with a variety of wattages including 600W LED/CFL and 1800W incandescent.
- Supports single pole or multi-way configurations when paired with compatible switches for enhanced functionality.
- Ideal for high wattage fixtures, exhaust fans, and other heavy-duty applications.
- Suitable for various settings including landscape lighting, indoor lighting, heat lamps, pool pumps, and more.
- Interchangeable faceplates available in multiple colors for aesthetic customization.
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- Replaces standard wall switch with a countdown timer for automated operation of fans, motors, and lights with four preset time options.
- Shallow design for easy installation in wall boxes; compatible with a variety of wattages including 600W LED/CFL and 1800W incandescent.
- Supports single pole or multi-way configurations when paired with compatible switches for enhanced functionality.
- Ideal for high wattage fixtures, exhaust fans, and other heavy-duty applications.
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#5
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- 20A, 120V mechanical timer switch designed for outdoor electrical power control; compatible with various outdoor electrical setups, including RV outlets and pool lights.
- Programmable 24-hour timer with 48 pins for scheduling up to 24 ON/OFF cycles at 30-minute intervals; easily toggle between auto and always ON modes.
- Waterproof construction ensures reliable operation in rain, snow, and dust; made from durable and flame-retardant materials.
- Simple installation with 2.2FT cables and multiple mounting holes; ideal for setting up outdoor light timers and holiday decorations.
- Versatile for managing outdoor lighting, security lights, pool lighting, and garden maintenance; capable of supporting a range of outdoor electrical devices.
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- 20A, 120V mechanical timer switch designed for outdoor electrical power control; compatible with various outdoor electrical setups, including RV outlets and pool lights.
- Programmable 24-hour timer with 48 pins for scheduling up to 24 ON/OFF cycles at 30-minute intervals; easily toggle between auto and always ON modes.
- Waterproof construction ensures reliable operation in rain, snow, and dust; made from durable and flame-retardant materials.
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#6
15% Off
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- Automatically shuts off after a chosen duration of up to 60 minutes.
- Can be wired directly into standard light switches, both toggle and decorator styles.
- Simple installation replaces existing wall switch and fits single or multi-gang plates.
- Compatible with lamps, fans, and various appliances; supports up to 20 amps and 2500 watts for resistive loads.
- Includes wall plate for easy setup.
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- Automatically shuts off after a chosen duration of up to 60 minutes.
- Can be wired directly into standard light switches, both toggle and decorator styles.
- Simple installation replaces existing wall switch and fits single or multi-gang plates.
- Compatible with lamps, fans, and various appliances; supports up to 20 amps and 2500 watts for resistive loads.
- Includes wall plate for easy setup.
#7
15% Off
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- Programmable in 15 minute intervals with 48 setting options in a 24 hours period. Total 48 ON/OFF setting per day. Repeats schedule daily with personal setting.
- Waterproof for outdoor use: Cover provides protecting timer from weather conditions. Heavy duty material and two grounded outlet makes it safe and durable.
- Two 3-prong grounded outlets and 6.8 inch cord for use with devices like Christmas lights, fountain timers, patio and yard lights, as well as holiday decorations. (Not compatible with pool pumps)
- Simply press down all the pins for the range of time you would like your attached appliance to turn on. The programmed schedule will repeat every 24 hours, automatically turning on and off your device so you won't have to.
- Our outdoor dual 3-prong, grounded timer outlet is ETL listed, and conforms to UL Std. 917. Rate Voltage: 125V, 60Hz, 15A Max, 1875W Resistive or General Purpose, 8A Tungsten Lamp, 1/2HP, TV-5. Note: Compressors may affect the rating of your appliance when being used with our products. Please ensure the BTU/hr on your appliance is compatible with our product. Please refer to the application guide in the technical details.
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- Programmable in 15 minute intervals with 48 setting options in a 24 hours period. Total 48 ON/OFF setting per day. Repeats schedule daily with personal setting.
- Waterproof for outdoor use: Cover provides protecting timer from weather conditions. Heavy duty material and two grounded outlet makes it safe and durable.
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#8
7% Off
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- Durable outdoor mechanical timer designed for efficient outdoor lighting and décor, providing energy savings
- Programmable in 15-minute intervals with 96 pins, enabling daily automated operation of lights
- Includes a 6-foot 14/3 SJTW cord with two mounting holes for enhanced stability during use
- Features two grounded outlets with a safety cover to safeguard against moisture and debris
- LED indicator light confirms timer functionality
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- Durable outdoor mechanical timer designed for efficient outdoor lighting and décor, providing energy savings
- Programmable in 15-minute intervals with 96 pins, enabling daily automated operation of lights
- Includes a 6-foot 14/3 SJTW cord with two mounting holes for enhanced stability during use
- Features two grounded outlets with a safety cover to safeguard against moisture and debris
- LED indicator light confirms timer functionality
#9
15% Off
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- Automates outdoor lighting, allowing users to set specific ON/OFF times daily.
- Compatible with LED, CFL, incandescent, and halogen bulbs, making it suitable for various lighting needs.
- Programmable daily cycle in 30-minute increments to customize lighting schedules.
- Designed for outdoor and indoor use with two heavy-duty grounded outlets and weather-resistant construction.
- Electrical specifications include 125VAC at 60 Hz, supporting up to 15A resistive and general purpose Loads.
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- Automates outdoor lighting, allowing users to set specific ON/OFF times daily.
- Compatible with LED, CFL, incandescent, and halogen bulbs, making it suitable for various lighting needs.
- Programmable daily cycle in 30-minute increments to customize lighting schedules.
- Designed for outdoor and indoor use with two heavy-duty grounded outlets and weather-resistant construction.
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#10
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- Automatically controls heavy-duty appliances like air conditioners and heaters up to 2500 Watts
- Compatible with 125 Volt and 240 Volt 'T' type outlets
- Features a 3-prong NEMA 'T' type receptacle
- Allows for 2 ON/OFF settings daily, expandable with additional trippers
- Includes a minimum 30-minute ON/OFF time and manual override option
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- Automatically controls heavy-duty appliances like air conditioners and heaters up to 2500 Watts
- Compatible with 125 Volt and 240 Volt 'T' type outlets
- Features a 3-prong NEMA 'T' type receptacle
- Allows for 2 ON/OFF settings daily, expandable with additional trippers
- Includes a minimum 30-minute ON/OFF time and manual override option
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