Clock-Actuated Switches | McMaster-Carr

	Timing Cycle Timing Cycle

24 Hour

7 Day

365 Day

	Switching Voltage Switching Voltage

	Input Voltage Input Voltage

	Timing Adjustment Style Timing Adjustment Style


Push Button	Trippers

	Switching Current Switching Current

	Number of Circuits Controlled Number of Circuits Controlled

	Minimum Set Time Minimum Set Time

	Maximum On/Off Cycles Maximum On/Off Cycles

	Industry Designation Industry Designation

	Number of Outlets Number of Outlets

	Color Color

	White		Off-White
	Gray		Black
	Beige

	Specifications Met Specifications Met

CSA

CE Marked

	Height Height

	Depth Depth

	Width Width

	Wire Connection Type Wire Connection Type

	Screw Terminals
	Wire Leads
	Quick- Disconnect Terminals

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Environment Environment

Corrosive

Outdoor

Damp

	Mounting Hole Diameter Mounting Hole Diameter

	Housing Material Housing Material

Steel

Plastic

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	Knockout Trade Size Knockout Trade Size

1/2

3/4

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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49 Products

Time and Day Activated Switches

24-Hour Timing Cycle

Seven-Day Timing Cycle

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.

Seven-day switches can perform a different program each day of the week.

Switches with trippers are programmed by setting on and off times by positioning trippers around the clock dial.

Switches with astronomical timing can be set to turn lights on and off based on sunrise and sunset.

24-Hour Timing Cycle
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		Each
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
7-Day Timing Cycle
14 per Day	1 min.	Push Button	__	__	15 A @ 120 V AC	2	Astronomical Timing, Random On/Off Option	3"	3 1/2"	3 1/2"	Three Prong	0000000	00000

Outdoor Time and Day Activated Switches

24-Hour Timing Cycle

Seven-Day Timing Cycle

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.

Seven-day switches can perform a different program each day of the week. They have astronomical timing that can be set to turn lights on and off based on sunrise and sunset.

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
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.	Min. Ht., ft.		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
7-Day Timing Cycle
7 per Day	1 min.	Push Button	__	__	15 A @ 120 V AC	2	Astronomical Timing, Random On/Off Option	5 1/8"	5 1/4"	1 7/8"	Three Prong	2	No	2	0.31"	4.5	0000000	00000

Additional Trippers (Pkg. of 2 Pair)

0000000

Pkg.

00000

Outlet-Box-Mount Time and Day Activated Switches

24-Hour Timing Cycle

Seven-Day Timing Cycle

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.

Seven-day switches can perform a different program each day of the week. Use the astronomical timing to turn lights on and off based on sunrise and sunset; this option can be used independently or in combination with timed programming.

24-Hour Timing Cycle
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
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
7-Day Timing Cycle
1	15 A @ 120 V AC	40 per Week	1 min.	Push Button	__	Astronomical Timing, Battery Backup, LCD Display	__	1 Device (1 Gang)	Wire Leads	6"	0000000	00000

Surface/DIN-Rail Mount Time and Day Activated Switches

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
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

Panel-Mount Time and Day Activated Switches

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.

Seven-day switches can perform a different program each day of the week. They come with an override to bypass their programmed settings.

												For Panel Cutout
No. of Circuits Controlled	Switching Current @ Voltage	Input Voltage	Maximum On/Off Cycles	Minimum Set Time	Timing Adjustment Style	Tripper Type	With Override	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
7-Day Timing Cycle
1	21 A @ 250 V AC	120V AC	6 per Day	2 hrs.	Trippers	Captive	With Override	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

Surface/DIN-Rail Mount Set-to-the-Minute Time and Day Activated Switches

24-Hour Timing Cycle

Seven-Day Timing Cycle

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.

Seven-day switches can perform a different program each day of the week.

										Mounting				For Panel Cutout
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	Hole Dia.	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
7-Day Timing Cycle
1	16 A @ 277 V AC	24V AC	20 per Day	1 min.	Push Button	SPDT	4.1"	2.9"	2.2"	No	3	0.13"	35	__	__	Screw Terminals	00000000	000000
1	16 A @ 277 V AC	120V AC	20 per Day	1 min.	Push Button	SPDT	4.1"	2.9"	2.2"	No	3	0.13"	35	__	__	Screw Terminals	00000000	000000
1	16 A @ 277 V AC	120V AC	50 per Day	1 min.	Push Button	SPDT	4.1"	2.9"	2.2"	No	3	0.13"	35	__	__	Screw Terminals	00000000	000000
1	16 A @ 277 V AC	240V AC	20 per Day	1 min.	Push Button	SPDT	4.1"	2.9"	2.2"	No	3	0.13"	35	__	__	Screw Terminals	00000000	000000

Panel-Mount Set-to-the-Minute Time and Day Activated Switches

One Circuit

Two Circuits

Install these switches in a panel cutout. More precise than other time and day switches, they program on/off times for equipment down to the exact minute. The seven-day timing cycle can perform a different program each day of the week. All have an override to bypass the programmed on/off settings. A backup battery maintains the program during a power outage.

Two-circuit switches can apply a different program to each circuit.

										For Panel Cutout
No. of Circuits Controlled	Switching Current @ Voltage	Input Voltage	Maximum On/Off Cycles	Minimum Set Time	Timing Adjustment Style	Industry Designation	Ht.	Wd.	Dp.	Ht.	Wd.	Wire Connection Type		Each
7-Day Timing Cycle
1	16 A @ 277 V AC	24V AC	20 per Day	1 min.	Push Button	SPDT	2.8"	2.8"	1.5"	2.63"	2.63"	Quick-Disconnect Terminals	0000000	0000000
1	16 A @ 277 V AC	120V AC	20 per Day	1 min.	Push Button	SPDT	2.8"	2.8"	1.5"	2.63"	2.63"	Quick-Disconnect Terminals	00000000	000000
2	15 A @ 250 V AC	120V AC/240V AC	20 per Day	1 min.	Push Button	SPST-NO	2.8"	2.8"	2.2"	2.68"	2.68"	Screw Terminals	00000000	000000

High-Current Time and Day Activated Switches

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.

Seven-day switches can perform a different program each day of the week.

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
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	Pkg. Qty.		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	00000	1	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	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	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	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	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	0000000	0000
7-Day Timing Cycle
1	20 A @ 240 V AC	120V AC	12 per Day	2 hrs.	Captive	84	SPDT	7 3/4"	5"	3"	Screw Terminals	Indoor Only	00000000	000000	__	000000	00
4	40 A @ 240 V AC	120V AC	3 per Day	3.5 hrs.	Removable	4	4PST-NO	12 1/2"	8 1/4"	4"	Screw Terminals	Indoor Only	00000000	000000	7	00000000	00000

Additional Day-Skip Screws (Pkg. of 3)

0000000

Pkg.

00000

Outdoor High-Current Time and Day Activated Switches

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.

Seven-day switches can perform a different program each day of the week.

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
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	Pkg. Qty.		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	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	00000	__	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	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	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	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	0000000	0000
7-Day Timing Cycle
2	40 A @ 240 V AC	120V AC/208V AC/240V AC/277V AC	6 per Day	2 hrs.	Captive	96	Polycarbonate Plastic	DPDT	8 7/8"	6 5/8"	3"	Screw Terminals	00000000	000000	__	000000	00
4	40 A @ 240 V AC	120V AC	3 per Day	3.5 hrs.	Removable	14	Steel	4PST	12 1/2"	8 1/4"	4"	Screw Terminals	00000000	000000	7	00000000	00000

Additional Day-Skip Screws (Pkg. of 3)

0000000

Pkg.

00000

Outdoor Set-to-the-Minute High-Current Time and Day Activated Switches

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.

Seven-day switches can perform a different program each day of the week.

Seven-day/365-day switches can perform a different program each day of the week or year, and compensate for leap year and daylight savings time. Override regular programming for up to 99 holidays for any length of time. They can also be used to activate equipment such as bells and signals for just a few seconds.

Switches with astronomical timing can be set to turn lights on and off based on sunrise and sunset.

Switches with a day skipper can be programmed to skip operation for one to six days.

											Mounting
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
7-Day Timing Cycle
With Battery Backup, Lockout, Day Skipper
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
With Battery Backup, Lockout, Day Skipper, Astronomical Timing
1	30 A @ 240 V AC	120V AC/208V AC/240V AC/277V AC	20 per Day	1 min.	Push Button	Polycarbonate Plastic	SPDT	8 1/4"	5"	3"	No	0.16"	Screw Terminals	0000000	000000
7-Day/365-Day Timing Cycle
With Battery Backup, Lockout, Astronomical Timing
1	30 A @ 240 V AC	120V AC/208V AC/240V AC/277V AC	4,000 per Year	1 min.	Push Button	Steel	SPDT	8 5/8"	5 3/4"	3 5/8"	No	0.19"	Screw Terminals	00000000	000000
2	30 A @ 240 V AC	120V AC/208V AC/240V AC/277V AC	4,000 per Year	1 min.	Push Button	Steel	SPDT	8 5/8"	5 3/4"	3 5/8"	No	0.19"	Screw Terminals	00000000	000000

Set-to-the-Minute High-Current Time and Day Activated Switches

For precise control of high-current equipment such as landscape lighting, pumps, and heaters, these switches schedule on/off times to the exact minute. The seven-day timing cycle can perform a different program each day of the week. All have a day skipper that can suspend operation for one to six days. A backup battery maintains the program during a power outage.

Two-circuit switches can apply a different program to each circuit.

										Mounting
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, Day Skipper
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
7-Day Timing Cycle
With Capacitor Backup, Lockout, Day Skipper
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	000000
With Battery Backup, Lockout, Day Skipper
2	30 A @ 240 V AC	120V AC/208V AC/240V AC/277V AC	28 per Day	1 min.	Push Button	SPST, DPST	7 3/4"	5"	3"	No	0.16"	1/2, 3/4	Screw Terminals	Indoor Only	UL Listed, CSA Certified	0000000	000000