About Timing Functions
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Time and Day Activated Switches
![](/prerenderstable/mvPRE/contents/gfx/imagecache/700/7001k15p1-d01c-digital@halfx_637098947029544608.png?ver=imagenotfound)
Program these switches to turn a device on and off at a set time and day. They have a three-prong outlet to plug devices directly into the switch. Use with lamps and other small electrical loads. All have an override to bypass the programmed on/off settings.
24-hour switches repeat the same program daily.
Switches with trippers are programmed by setting on and off times by positioning trippers around the clock dial.
Maximum On/Off Cycles | Minimum Set Time | Timing Adjustment Style | Tripper Type | No. of Trippers | Switching Current @ Voltage | No. of Outlets | Ht. | Wd. | Dp. | Plug Type | Each | |
24-Hour Timing Cycle | ||||||||||||
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3 per Day | 30 min. | Trippers | Removable | 6 | 15 A @ 120 V AC | 1 | 3 1/4" | 3 1/4" | 3 1/4" | Three Prong | 0000000 | 000000 |
Outdoor Time and Day Activated Switches
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Designed to work with landscape lighting and filter pumps, these switches turn equipment on and off at a set time and day. They control two devices at once, and have three-prong outlets to plug devices directly into the switch. All have an override to bypass the programmed on/off settings.
24-hour switches repeat the same program daily. Position trippers around the clock dial to set on and off times.
Switches with light sensor control allow one device to be controlled by the presence or absence of light.
NEMA 3R rated switches are protected against falling liquids and light splashing.
Mounting | |||||||||||||||||
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Maximum On/Off Cycles | Minimum Set Time | Timing Adjustment Style | Tripper Type | No. of Trippers | Switching Current @ Voltage | No. of Outlets | Features | Ht. | Wd. | Dp. | Plug Type | Cord Lg., ft. | Fasteners Included | No. of Holes | Hole Dia. | Each | |
24-Hour Timing Cycle—NEMA 3R | |||||||||||||||||
12 per Day | 30 min. | Trippers | Removable | 4 | 15 A @ 120 V AC | 2 | Light Sensor Control | 9 3/8" | 5 1/2" | 3 3/8" | Three Prong | 2 | No | 4 | 1/4" | 0000000 | 0000000 |
Additional Trippers (Pkg. of 2 Pairs) | 0000000 | Pkg. | 00000 |
Surface/DIN-Rail Mount Time and Day Activated Switches
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Mount these switches to a flat surface or attach to DIN rail. Program them to turn a device on and off at a set time and day. Position trippers around the clock dial to set on and off times. These switches have a 24-hour timing cycle that repeats the same program daily. As UL and C-UL Recognized Components that are also CSA Certified and CE Marked, they meet American, Canadian, and European safety standards.
Mounting | ||||||||||||||||||
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No. of Circuits Controlled | Switching Current @ Voltage | Input Voltage | Maximum On/Off Cycles | Minimum Set Time | Timing Adjustment Style | Tripper Type | Industry Designation | Ht. | Wd. | Dp. | Fasteners Included | No. of Holes | Hole Dia. | For DIN Rail Ht., mm | Wire Connection Type | Specifications Met | Each | |
24-Hour Timing Cycle | ||||||||||||||||||
1 | 21 A @ 250 V AC | 120V AC | 48 per Day | 15 min. | Trippers | Captive | SPDT | 4.2" | 2.8" | 2.2" | No | 3 | 0.13" | 35 | Screw Terminals | UL Recognized Component, C-UL Recognized Component, CSA Certified, CE Marked | 0000000 | 000000 |
Outlet-Box-Mount Time and Day Activated Switches
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Switches fit single device (1 gang) outlet boxes. Program them to turn a device on and off at a set time and day. They’re often used with lamps and other small electrical loads.
24-hour switches repeat the same program daily. Position trippers around the clock dial to set on and off times.
No. of Circuits Controlled | Switching Current @ Voltage | Maximum On/Off Cycles | Minimum Set Time | Timing Adjustment Style | Tripper Type | Features | Industry Designation | For Outlet Box Type | Wire Connection Type | Wire Lead Lg. | Each | |
24-Hour Timing Cycle | ||||||||||||
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1 | 20 A @ 120 V AC | 24 per Day | 30 min. | Trippers | Captive | On/Off/Timer Selector | SPST | 1 Device (1 Gang) | Wire Leads | 6" | 000000 | 000000 |
Panel-Mount Time and Day Activated Switches
![](/prerenderstable/mvPRE/contents/gfx/imagecache/779/7797k11p1-d01c-digital@halfx_637098926138406324.png?ver=imagenotfound)
Install these switches in a panel cutout and program them to turn a device on and off at a set time and day. Position trippers around the clock dial to set on and off times. As UL and C-UL Recognized Components that are also CE Marked, these switches meet American, Canadian, and European safety standards.
24-hour switches repeat the same program daily.
For Panel Cutout | ||||||||||||||||
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No. of Circuits Controlled | Switching Current @ Voltage | Input Voltage | Maximum On/Off Cycles | Minimum Set Time | Timing Adjustment Style | Tripper Type | Industry Designation | Ht. | Wd. | Dp. | Ht. | Wd. | Wire Connection Type | Specifications Met | Each | |
24-Hour Timing Cycle | ||||||||||||||||
1 | 21 A @ 250 V AC | 120V AC | 48 per Day | 15 min. | Trippers | Captive | SPDT | 2.8" | 2.8" | 1.5" | 2.63" | 2.63" | Quick-Disconnect Terminals | UL Recognized Component, C-UL Recognized Component, CSA Certified, CE Marked | 0000000 | 000000 |
High-Current Time and Day Activated Switches
![](/prerenderstable/mvPRE/contents/gfx/imagecache/703/7037k11p1-d01c-digital@halfx_637099032067804024.png?ver=imagenotfound)
Control equipment with high currents such as landscape lighting, pumps, and heaters. Program these switches to turn a device on and off at a set time and day. Position trippers around the clock dial to set on and off times.
24-hour switches repeat the same program daily.
Switches with a day skipper can be programmed to skip operation for one to six days.
Additional trippers (sold separately) are sold in pairs that include one “on” tripper and one “off” tripper.
Switches | Additional Trippers | ||||||||||||||||
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No. of Circuits Controlled | Switching Current @ Voltage | Input Voltage | Maximum On/Off Cycles | Minimum Set Time | Tripper Type | No. of Trippers | Industry Designation | Ht. | Wd. | Dp. | Wire Connection Type | Environment | Each | No. of Trippers Included | Pkg. | ||
24-Hour Timing Cycle | |||||||||||||||||
1 | 20 A @ 120 V AC, 208 V AC, 240 V AC, 277 V AC | 120V AC/208V AC/240V AC/277V AC | 48 per Day | 15 min. | Captive | 96 | SPDT | 7 3/4" | 5" | 3" | Screw Terminals | Indoor Only | 0000000 | 0000000 | __ | 000000 | 00 |
1 | 40 A @ 240 V AC | 120V AC | 12 per Day | 1 hrs. | Removable | 2 | SPST | 7 3/4" | 5" | 3" | Screw Terminals | Indoor Only | 0000000 | 000000 | 1 Pair | 0000000 | 00000 |
2 | 40 A @ 240 V AC | 120V AC | 12 per Day | 1 hrs. | Removable | 2 | DPST | 7 3/4" | 5" | 3" | Screw Terminals | Indoor Only | 0000000 | 000000 | 1 Pair | 0000000 | 0000 |
2 | 40 A @ 240 V AC | 208V AC/240V AC/277V AC | 12 per Day | 1 hrs. | Removable | 2 | DPST | 7 3/4" | 5" | 3" | Screw Terminals | Indoor Only | 0000000 | 000000 | 1 Pair | 0000000 | 0000 |
24-Hour Timing Cycle with Day Skipper and Three Skip Screws | |||||||||||||||||
1 | 40 A @ 240 V AC | 120V AC | 10 per Day | 1 hrs. | Removable | 2 | SPST | 7 3/4" | 5" | 3" | Screw Terminals | Indoor Only | 0000000 | 000000 | 1 Pair | 0000000 | 0000 |
2 | 40 A @ 240 V AC | 120V AC | 10 per Day | 1 hrs. | Removable | 2 | DPST | 7 3/4" | 5" | 3" | Screw Terminals | Indoor Only | 0000000 | 000000 | 1 Pair | 0000000 | 0000 |
2 | 40 A @ 240 V AC | 208V AC/240V AC/277V AC | 10 per Day | 1 hrs. | Removable | 2 | DPST | 7 3/4" | 5" | 3" | Screw Terminals | Indoor Only | 0000000 | 000000 | 1 Pair | 0000000 | 0000 |
Additional Day-Skip Screws (Pkg. of 3) | 0000000 | Pkg. | 00000 |
Outdoor High-Current Time and Day Activated Switches
![](/prerenderstable/mvPRE/contents/gfx/imagecache/703/7037k81-@halfx_bn2g2_1718391094.png?ver=imagenotfound)
Rated NEMA 3R, these rain-tight switches protect against falling liquids and light splashing. They control equipment with high currents, such as landscape lighting, pumps, and heaters. Program them to turn a device on and off at a set time and day. Position trippers around the clock dial to set on and off times.
24-hour switches repeat the same program daily.
Switches with a day skipper can be programmed to skip operation for one to six days.
Additional trippers (sold separately) are sold in pairs that include one “on” tripper and one “off” tripper.
Switches | Additional Trippers | ||||||||||||||||
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No. of Circuits Controlled | Switching Current @ Voltage | Input Voltage | Maximum On/Off Cycles | Minimum Set Time | Tripper Type | No. of Trippers | Housing Material | Industry Designation | Ht. | Wd. | Dp. | Wire Connection Type | Each | No. of Trippers Included | Pkg. | ||
24-Hour Timing Cycle | |||||||||||||||||
1 | 40 A @ 240 V AC | 120V AC | 12 per Day | 1 hrs. | Removable | 2 | Steel | SPST | 9 3/8" | 5 1/2" | 3 5/8" | Screw Terminals | 0000000 | 0000000 | 1 Pair | 0000000 | 00000 |
2 | 40 A @ 240 V AC | 120V AC/208V AC/240V AC/277V AC | 48 per Day | 15 min. | Captive | 96 | Polycarbonate Plastic | DPDT | 8 7/8" | 6 5/8" | 3" | Screw Terminals | 0000000 | 000000 | __ | 000000 | 00 |
2 | 40 A @ 240 V AC | 120V AC | 12 per Day | 1 hrs. | Removable | 2 | Steel | DPST | 9 3/8" | 5 1/2" | 3 5/8" | Screw Terminals | 0000000 | 000000 | 1 Pair | 0000000 | 0000 |
2 | 40 A @ 240 V AC | 208V AC/240V AC/277V AC | 12 per Day | 1 hrs. | Removable | 2 | Steel | DPST | 9 3/8" | 5 1/2" | 3 5/8" | Screw Terminals | 0000000 | 000000 | 1 Pair | 0000000 | 0000 |
24-Hour Timing Cycle with Day Skipper and Three Skip Screws | |||||||||||||||||
2 | 40 A @ 240 V AC | 120V AC | 10 per Day | 1 hrs. | Removable | 2 | Steel | DPST | 9 3/8" | 5 1/2" | 3 5/8" | Screw Terminals | 0000000 | 000000 | 1 Pair | 0000000 | 0000 |
2 | 40 A @ 240 V AC | 208V AC/240V AC/277V AC | 10 per Day | 1 hrs. | Removable | 2 | Steel | DPST | 9 3/8" | 5 1/2" | 3 5/8" | Screw Terminals | 0000000 | 000000 | 1 Pair | 0000000 | 0000 |
Additional Day-Skip Screws (Pkg. of 3) | 0000000 | Pkg. | 00000 |
Set-to-the-Minute High-Current Time and Day Activated Switches
![](/prerenderstable/mvPRE/contents/gfx/imagecache/745/7459k84-@halfx_637117586267751502.png?ver=imagenotfound)
For precise control of high-current equipment such as landscape lighting, pumps, and heaters, these switches schedule on/off times to the exact minute. A backup battery or capacitor maintains the program during a power outage.
Two-circuit switches can apply a different program to each circuit.
Mounting | |||||||||||||||||
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No. of Circuits Controlled | Switching Current @ Voltage | Input Voltage | Maximum On/Off Cycles | Minimum Set Time | Timing Adjustment Style | Industry Designation | Ht. | Wd. | Dp. | Fasteners Included | Hole Dia. | Knockout Trade Size | Wire Connection Type | Environment | Specifications Met | Each | |
24-Hour Timing Cycle | |||||||||||||||||
With Capacitor Backup, Lockout | |||||||||||||||||
1 | 30 A @ 240 V AC | 120V AC/208V AC/240V AC/277V AC | 48 per Day | 1 min. | Push Button | SPST | 7 7/8" | 5 1/8" | 3 7/16" | No | 3/16" | 1/2, 3/4 | Screw Terminals | Indoor Only | UL Listed, CSA Certified | 0000000 | 0000000 |
2 | 30 A @ 240 V AC | 120V AC/208V AC/240V AC/277V AC | 48 per Day | 1 min. | Push Button | SPST, DPST | 7 7/8" | 5 1/8" | 3 7/16" | No | 3/16" | 1/2, 3/4 | Screw Terminals | Indoor Only | UL Listed, CSA Certified | 0000000 | 000000 |
Outdoor Set-to-the-Minute High-Current Time and Day Activated Switches
![](/prerenderstable/mvPRE/contents/gfx/imagecache/709/70915k77p1-d01c-digital@halfx_637099025680824522.png?ver=imagenotfound)
Rated NEMA 3R, these rain-tight switches protect against falling liquids and light splashing. More precise than other time and day switches, they program on/off times for equipment down to the exact minute. They control equipment with high currents, such as landscape lighting, pumps, and heaters. A backup battery maintains the program during a power outage.
24-hour switches repeat the same program daily.
Mounting | |||||||||||||||
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No. of Circuits Controlled | Switching Current @ Voltage | Input Voltage | Maximum On/Off Cycles | Minimum Set Time | Timing Adjustment Style | Housing Material | Industry Designation | Ht. | Wd. | Dp. | Fasteners Included | Hole Dia. | Wire Connection Type | Each | |
24-Hour Timing Cycle | |||||||||||||||
With Battery Backup, Lockout | |||||||||||||||
1 | 30 A @ 240 V AC | 120V AC/208V AC/240V AC/277V AC | 20 per Day | 1 min. | Push Button | Polycarbonate Plastic | SPST | 8 1/4" | 5" | 3" | No | 0.16" | Screw Terminals | 0000000 | 0000000 |
2 | 30 A @ 240 V AC | 120V AC/208V AC/240V AC/277V AC | 20 per Day | 1 min. | Push Button | Polycarbonate Plastic | DPST | 8 1/4" | 5" | 3" | No | 0.16" | Screw Terminals | 0000000 | 000000 |
Surface/DIN-Rail Mount Set-to-the-Minute Time and Day Activated Switches
![](/prerenderstable/mvPRE/contents/gfx/imagecache/703/70395k71p1-d01c-digital@halfx_637099051645008229.png?ver=imagenotfound)
Mount these switches to a flat surface or attach to DIN rail. More precise than other time and day switches, they program on/off times for equipment down to the exact minute. All have an override to bypass the programmed on/off settings. A backup battery maintains the program during a power outage.
24-hour switches repeat the same program daily. They control two circuits and can apply a different program to each circuit.
Mounting | For Panel Cutout | ||||||||||||||||
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No. of Circuits Controlled | Switching Current @ Voltage | Input Voltage | Maximum On/Off Cycles | Minimum Set Time | Timing Adjustment Style | Industry Designation | Ht. | Wd. | Dp. | Fasteners Included | No. of Holes | For DIN Rail Ht., mm | Ht. | Wd. | Wire Connection Type | Each | |
24-Hour Timing Cycle | |||||||||||||||||
2 | 15 A @ 250 V AC | 120V AC/240V AC | 12 per Day | 1 min. | Push Button | SPST-NO | 3.8" | 3.8" | 2.2" | No | 2 | 35 | 3.62" | 3.62" | Screw Terminals | 00000000 | 0000000 |
Digital Timers
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Timers with a calibration certificate traceable to NIST have been tested to NIST standards to ensure accuracy.
Timers with a memory function automatically return the display to the last programmed time. Good for timing repetitive intervals.
IP65-rated timers protect against dust and low-pressure washdowns. They also resist impacts up to 4 ft.
Case | |||||||||||||||||
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Style | Timing Functions | Max. No. of Events | Max. Timer Duration | Max. Alarm Duration | Resolution | Ht. | Wd. | Dia. | Dp. | Material | Color | Backing Type | Batteries Included | Features | Environmental Rating | Each | |
Timers | |||||||||||||||||
C | Count Up Count Down Pause Clock | 1 | 24 hrs. | Continuous | 1 sec. | 1 3/4" | __ | 3 1/8" | __ | Plastic | White | __ | Yes | Alarm Memory Function | __ | 00000000 | 000000 |
D | Count Up Count Down Pause | 1 | 24 hrs. | 12 sec. | 1 sec. | 2 1/2" | 3 3/4" | __ | 1" | Plastic | Gray | Magnetic | Yes | Alarm Built-In Stand Memory Function | __ | 0000000 | 00000 |
F | Count Up Count Down Pause Clock | 1 | 24 hrs. | 1 min. | 1/100 sec. | 3 3/4" | 3 3/4" | __ | 3" | Plastic | Gray | __ | Yes | Alarm Built-In Stand Memory Function | __ | 000000 | 00000 |
K | Count Up Count Down | 2 | 24 hrs. | 1 min. | 1 sec. | 3 3/4" | 5" | __ | 1/2" | Plastic | White | __ | Yes | Alarm Memory Function | __ | 00000000 | 00000 |
M | Count Up Count Down | 1 | 24 hrs. | 5 min. | 1 sec. | 5 1/4" | 7 3/4" | __ | 1" | Plastic | Black | __ | Yes | Alarm Built-In Stand Memory Function | IP65 | 00000000 | 00000 |
P | Count Up | 4 | 24 hrs. | Continuous | 1 min. | 5 1/2" | 8 7/8" | __ | 1" | Plastic | White | Magnetic | Yes | Alarm Built-In Stand Clip Dry Eraseable | __ | 00000000 | 00000 |
Timers with Calibration Certificate Traceable to NIST | |||||||||||||||||
R | Count Up Count Down Pause Clock | 2 | 24 hrs. | 1 min. | 1 sec. | 2 1/8" | 2 3/4" | __ | 7/8" | Plastic | Black | Magnetic | Yes | Alarm Built-In Stand Memory Function | __ | 0000000 | 00000 |
Y | Count Up Count Down | 1 | 24 hrs. | 1 min. | 1 sec. | 3 1/4" | 2 1/2" | __ | 1/2" | Plastic | White | __ | Yes | Alarm Built-In Stand Memory Function Repeat Function Voice Alerts | __ | 00000000 | 00000 |
Stopwatches
![](/prerenderstable/mvPRE/contents/gfx/imagecache/250/2504t14p1-@halfx_637801022416617358.png?ver=imagenotfound)
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Quickly view starts and finishes on a digital screen.
Use stopwatches with a backlit display to time events in low-light conditions.
Stopwatches with a calibration certificate traceable to NIST have been tested to NIST standards to ensure accuracy.
Case | ||||||||||||
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Style | Timing Functions | Max. Timer Duration | Accuracy | Material | Color | Lens Material | Water Resistance | Batteries Included | Features | Includes | Each | |
Stopwatches | ||||||||||||
C | Count Up, Split, Clock | 24 hrs. | ±0.125 sec./hr. | Plastic | Green | Plastic | Water Resistant | Yes | Alarm, Backlit Display | Lanyard | 0000000 | 000000 |
Stopwatches with Calibration Certificate Traceable to NIST | ||||||||||||
F | Count Up, Split, Lap, Pause, Clock | 24 hrs. | ±0.04 sec./hr. | Plastic | Black | Plastic | Water Resistant | Yes | Alarm | Lanyard | 0000000 | 00000 |
G | Count Up, Split, Pause, Clock | 24 hrs. | ±0.4 sec./hr. | Plastic | Yellow | Plastic | Water Resistant | Yes | Alarm | Lanyard | 0000000 | 00000 |