Choosing an Electrical Switch
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Mil. Spec. Washdown Toggle Switches
These switches meet MIL-S-3950. A rubber seal protects them from washdowns.
For technical drawings and 3-D models, click on a part number.
No. of Circuits Controlled | Switch Starting Position | Switch Action | No. of Terminals | Industry Designation | Position Designation | Switching Current @ Voltage | Max. Voltage | Dp. Behind Panel | Mounting Hardware Included | Wire Connection Type | Each | |
2 Position | ||||||||||||
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For 1/2" Panel Cutout Dia. | ||||||||||||
2 | 2 Off (Normally Open) | Springs Back (Momentary) | 4 | DPST | Off-(On) | 8 A @ 125 V AC, 10 A @ 28 V DC | 28V DC 125V AC | 1.35" | Yes | 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.
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 | |||||||||||||||||
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 | 0000000 | 1 Pair | 0000000 | 00000 |
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 | |||||||||||||||||
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
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 | |||||||||||||||||
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 | 0000000 | 1 Pair | 0000000 | 00000 |
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
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.
Seven-day switches can perform a different program each day of the week. They have a day skipper that can suspend operation for one to six days.
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 | |||||||||||||||||
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 | 0000000 |
7-Day Timing Cycle | |||||||||||||||||
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 |
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.
Switches with a day skipper can be programmed to skip operation for one to six days.
For technical drawings and 3-D models, click on a part number.
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 | |||||||||||||||
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 3/8" | 5" | 3 1/8" | No | 0.26" | Screw Terminals | 0000000 | 0000000 |
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 3/8" | 5" | 3 1/8" | No | 0.26" | Screw Terminals | 0000000 | 000000 |
Durable Disconnect Switches
Protected by a steel enclosure, these switches withstand tougher conditions than switches in a plastic housing. Also known as safety switches, they have quick-make/quick-break action to eliminate arcing and prolong switch life. They have a lockout to secure in the off position using a padlock (not included).
Switches with safety interlock keep the door closed when the switch is on and prevent the switch from turning on when the door is open.
Switches with a fuse holder are used where overload protection is needed. When the current exceeds the fuse’s rating, the fuse will blow, interrupting the circuit to prevent the switch from overheating, breaking, or causing a fire. These switches require rejection-style fuse clips when used with UL Class RK1, RK5, or T fuses. Note: Horsepower ratings are based on time-delay fuses installed.
For technical drawings and 3-D models, click on a part number.
Switches | ||||||||||||||
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Switching | Rejection-Style Fuse Clips for RK1 and RK5 Fuse Class | |||||||||||||
Current, A | Voltage | Switch Action | Industry Designation | Electrical Phase (hp) | For No. of Wires | For Fuse Class | Ht. | Wd. | Environmental Rating | Specifications Met | Each | Each | ||
Powder-Coated Steel with Red Actuator | ||||||||||||||
2 Circuits with Lockout, Safety Interlock, Fuse Holder | ||||||||||||||
30 | 240V AC/ 250V DC | Stays Switched (Maintained) | DPST | Single (3 hp @ 240 V AC) Three (7 1/2 hp @ 240 V AC) | 3 | RK1, RK5, K5, H | 14 1/4" | 6 5/8" | NEMA 1 | UL Listed | 0000000 | 0000000 | 00000000 | 000000 |
100 | 240V AC/ 250V DC | Stays Switched (Maintained) | DPST | Single (15 hp @ 240 V AC) | 3 | RK1, RK5, K5, T, H | 23 1/8" | 11 3/4" | NEMA 1 | UL Listed | 0000000 | 000000 | 00000000 | 00000 |
2 Circuits with Lockout, Fuse Holder | ||||||||||||||
60 | 240V AC/ 250V DC | Stays Switched (Maintained) | DPST | Single (10 hp @ 240 V AC) | 3 | RK1, RK5, K5, H | 10 1/16" | 6 7/16" | NEMA 1 | UL Listed | 0000000 | 000000 | 00000000 | 00000 |
Rejection-Style Fuse Clip for T Fuse Class | 00000000 | Each | 000000 |
Outdoor Durable Disconnect Switches
A raintight NEMA 3R rated enclosure protects these switches from falling liquids and light splashing. The enclosure is steel, so it withstands tougher conditions than plastic enclosures. All have quick-make/quick-break action to eliminate arcing and prolong switch life. They have a lockout to secure in the off position using a padlock (not included).
Switches with safety interlock keep the door closed when the switch is on, and prevent the switch from turning on when the door is open.
Use switches with a fuse holder where overload protection is needed. When the current exceeds the rating of the fuse, it blows. This interrupts the circuit and prevents overheating, damage, and fire. When used with UL Class RK1, RK5, or T fuses, they require rejection-style fuse clips. Note: Horsepower ratings are based on time-delay fuses installed.
For technical drawings and 3-D models, click on a part number.
Switches | ||||||||||||
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Switching | Rejection-Style Fuse Clips for RK1 and RK5 Fuse Class | |||||||||||
Current, A | Voltage | Switch Action | Industry Designation | Electrical Phase (hp) | For No. of Wires | For Fuse Class | Ht. | Wd. | Each | Each | ||
Gray Powder-Coated Steel with Red Actuator | ||||||||||||
2 Circuits with Lockout, Fuse Holder | ||||||||||||
30 | 240V AC/ 250V DC | Stays Switched (Maintained) | DPST | Single (3 hp @ 240 V AC) | 3 | RK1, RK5, K5, H | 8 9/16" | 5 7/16" | 0000000 | 0000000 | 00000000 | 0000000 |
60 | 240V AC/ 250V DC | Stays Switched (Maintained) | DPST | Single (10 hp @ 240 V AC) | 3 | RK1, RK5, K5, H | 10 1/16" | 6 7/16" | 0000000 | 000000 | 00000000 | 00000 |
2 Circuits with Lockout, Safety Interlock, Fuse Holder | ||||||||||||
100 | 240V AC/ 250V DC | Stays Switched (Maintained) | DPST | Single (15 hp @ 240 V AC) | 3 | RK1, RK5, K5, T, H | 23 1/8" | 12" | 0000000 | 000000 | 00000000 | 00000 |
Rejection-Style Fuse Clip for T Fuse Class | 00000000 | Each | 000000 |
Harsh Environment Panel-Mount Disconnect Switches
Rated IP69K, these switches withstand high-pressure, high-temperature washdowns. They cut power and keep it isolated to prevent equipment from starting up during inspection and maintenance. All have a lockout so you can secure them in the off position with a padlock (not included).
For technical drawings and 3-D models, click on a part number.
Switching | |||||||||||
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Current, A | Voltage | Switch Action | Industry Designation | Electrical Phase (hp) | Dia. | Ht. | Wd. | Dp. Behind Panel | Each | ||
Yellow Stainless Steel Housing with Red Actuator | |||||||||||
2 Circuits with Lockout—For 7/8" Panel Cutout Dia. | |||||||||||
A | 20 | 300V AC | Stays Switched (Maintained) | DPST | Single (3/4 hp @ 120 V AC) Single (2 hp @ 240 V AC) Three (2 hp @ 240 V AC) | 3 15/16" | __ | __ | 2 15/16" | 00000000 | 0000000 |
Gray Stainless Steel Housing with Gray Actuator | |||||||||||
2 Circuits with Lockout—For 7/8" Panel Cutout Dia. | |||||||||||
C | 20 | 300V AC | Stays Switched (Maintained) | DPST | Single (3/4 hp @ 120 V AC) Single (2 hp @ 240 V AC) Three (2 hp @ 240 V AC) | __ | 3 1/8" | 2 3/4" | 2 15/16" | 00000000 | 000000 |
"Main Switch" Label with Adhesive Back—13/16" Ht. × 3 3/16" Wd. | 0000000 | Each | 000000 |
Enclosed Disconnect Switches
Cut power and keep it isolated to prevent equipment from starting up during inspection and maintenance. These switches are housed in a protective enclosure that resists denting, chipping, and cracking. Mount them to the wall when you run out of space in an electrical panel.
Switches with lockout secure in the off position with a padlock with a maximum shackle diameter of 5/16” (not included).
Photovoltaic switches can be used with photovoltaic cells which convert sunlight into electricity.
For technical drawings and 3-D models, click on a part number.
Switching | Plastic Housing with Red Actuator | ||||||
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Current, A | Voltage | Industry Designation | Ht. | Wd. | Environmental Rating | Each | |
Stays Switched (Maintained) | |||||||
2 Circuits with Lockout/Photovoltaic | |||||||
20 | 800V DC | DPST | 9 13/16" | 6 5/16" | IP66 | 0000000 | 0000000 |
32 | 800V DC | DPST | 11" | 7 1/2" | IP66, IP67, NEMA 3S, NEMA 6P, NEMA 12 | 0000000 | 000000 |
50 | 800V DC | DPST | 12 5/8" | 8 11/16" | IP65, NEMA 3R | 0000000 | 000000 |
63 | 650V DC | DPST | 12 5/8" | 8 11/16" | IP65, NEMA 3R | 0000000 | 000000 |
"Main Switch" Label with Adhesive Back—13/16" Ht. × 3 3/16" Wd. | 0000000 | Each | 000000 |
Wall-Mount Temperature Switches
(Double Pole, Single Throw)
Switch with Enclosed Housing
Turn heating equipment on or off at a specified temperature. Switches have a probe on a cable for remote temperature readings. Set the actuation point with the adjustment dial.
Switches that control two circuits are double pole, single throw (DPST). They turn two circuits from on to off (normally closed).
Switches with an open housing are often added to existing enclosures or custom installations.
Switches with a pilot light indicate when the switch is on.
Use packing seals and fittings (sold separately) to seal the probe into threaded tanks and pipes.
Probe | |||||||||||
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Temp. Range, °F | Max. Switching Current @ Voltage (Electrical Phase) | Dia. | Lg. | Material | Ht. | Wd. | Dp. | Fasteners Included | Environmental Rating | Each | |
Switches | |||||||||||
DPST—2 Circuit Controlled | |||||||||||
Open Housing | |||||||||||
60° to 250° | 30 A @ 120 V AC (Single) 30 A @ 277 V AC (Three) | 1/4" | 5 5/32" | Copper | 4 1/16" | 2 5/8" | 3 1/16" | No | __ | 0000000 | 0000000 |
200° to 550° | 30 A @ 120 V AC (Single) 30 A @ 277 V AC (Three) | 5/16" | 4 1/2" | Copper | 4 1/16" | 2 5/8" | 3 1/16" | No | __ | 0000000 | 000000 |
Enclosed Housing | |||||||||||
0° to 100° | 30 A @ 120 V AC (Single) 30 A @ 277 V AC (Three) | 3/8" | 4 3/16" | Copper | 5 3/4" | 3" | 3 1/8" | No | NEMA 1 | 0000000 | 000000 |
60° to 250° | 30 A @ 120 V AC (Single) 30 A @ 277 V AC (Three) | 1/4" | 5 5/32" | Copper | 5 3/4" | 3" | 3 1/8" | No | NEMA 1 | 0000000 | 000000 |
200° to 550° | 30 A @ 120 V AC (Single) 30 A @ 277 V AC (Three) | 5/16" | 4 7/8" | Copper | 5 3/4" | 3" | 3 1/8" | No | NEMA 1 | 0000000 | 000000 |
300° to 700° | 30 A @ 120 V AC (Single) 30 A @ 277 V AC (Three) | 3/16" | 13" | Nickel | 5 3/4" | 3" | 3 1/8" | No | NEMA 1 | 0000000 | 000000 |
Switches with Pilot Light | |||||||||||
DPST—2 Circuit Controlled | |||||||||||
Open Housing | |||||||||||
60° to 250° | 30 A @ 120 V AC (Single) 30 A @ 277 V AC (Three) | 1/4" | 5 5/32" | Copper | 4 1/16" | 2 5/8" | 3 1/16" | No | __ | 0000000 | 000000 |
200° to 550° | 30 A @ 120 V AC (Single) 30 A @ 277 V AC (Three) | 5/16" | 4 1/2" | Copper | 4 1/16" | 2 5/8" | 3 1/16" | No | __ | 0000000 | 000000 |
Enclosed Housing | |||||||||||
0° to 100° | 30 A @ 120 V AC (Single) 30 A @ 277 V AC (Three) | 3/8" | 4 3/16" | Copper | 5 3/4" | 3" | 3 1/8" | No | NEMA 1 | 0000000 | 000000 |
60° to 250° | 30 A @ 120 V AC (Single) 30 A @ 277 V AC (Three) | 1/4" | 5 5/32" | Copper | 5 3/4" | 3" | 3 1/8" | No | NEMA 1 | 0000000 | 000000 |
200° to 550° | 30 A @ 120 V AC (Single) 30 A @ 277 V AC (Three) | 5/16" | 4 7/8" | Copper | 5 3/4" | 3" | 3 1/8" | No | NEMA 1 | 0000000 | 000000 |
300° to 700° | 30 A @ 120 V AC (Single) 30 A @ 277 V AC (Three) | 3/16" | 13" | Nickel | 5 3/4" | 3" | 3 1/8" | No | NEMA 1 | 0000000 | 000000 |
Packing Seals and Fittings | 0000000 | Each | 000000 |
Washdown Wall-Mount Temperature Switches
To protect these switches from splashing water, corrosive liquid, and dust, the housing meets NEMA 4X for washdown conditions. Switches turn heating equipment on or off at a specified temperature. All have a probe on a cable for remote temperature readings. Set actuation points with the adjustment dial.
DPST (Double pole, single throw) switch turns two circuits from on to off (normally closed).
Probe | |||||||||||||
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Temp. Range | Temp. Accuracy | No. of Actuation Points | Electrical Phase | Max. Switching Current | Dia. | Lg. | Wire Connection Type | Ht. | Wd. | Dp. | Environmental Rating | Each | |
DPST—2 Circuit Controlled | |||||||||||||
Unthreaded PFA-Coated Copper Probe | |||||||||||||
70° to 245° F/20° to 120° C | ±4° F/±2.5° C | 1 | Single | 25 A @ 120 V AC 25 A @ 240 V AC | 5/16" | 6 1/2" | Screw Terminals | 5 7/8" | 3 1/8" | 5" | NEMA 4X | 00000000 | 0000000 |
Packing Seals and Fittings | 0000000 | Each | 000000 |
Line-Voltage Thermostats
Regulate line-voltage HVAC systems.
Thermostats for heaters mount to a surface-mount outlet box.
Overall | ||||||||||
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Voltage | Current, A | Temp. Setting, °F | Switch Type | Ht. | Wd. | Dp. | Mounting Fasteners Included | Specifications Met | Each | |
For Heaters | ||||||||||
120V AC-277V AC | 22 | 50° to 90° | DPST | 4 1/2" | 2 3/4" | 1 1/2" | No | ETL Listed | 00000000 | 000000 |
Tamper-Resistant Line-Voltage Thermostats
A built-in guard prevents accidental changes and other tampering and protects these thermostats from damage. These thermostats regulate the temperature in HVAC systems that use direct electrical power. They’re often used with baseboard and wall heaters.
DPST (double pole, single throw) thermostats control two circuits, so they have an “off” setting that cuts power to the thermostat. As a result, they’re more energy efficient and slightly safer than SPST (single pole, single throw) thermostats, which stay at a low setting instead of turning off completely.
For technical drawings and 3-D models, click on a part number.
Overall | |||||||||||
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Voltage | Current, A | Temp. Setting, °F | Switch Type | Ht. | Wd. | Dp. | Mounting Fasteners Included | Features | Specifications Met | Each | |
For Heaters | |||||||||||
120V AC-277V AC | 22 | 50° to 90° | DPST | 4 9/16" | 2 13/16" | 1 3/4" | No | Tamper-Resistant Guard | ETL Listed | 0000000 | 000000 |
Programmable Line-Voltage Thermostats
Set these thermostats to adjust the temperature at certain times each day. They regulate heaters that use direct electrical power, such as baseboard and wall heaters.
For technical drawings and 3-D models, click on a part number.
For System | Overall | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Type | Efficiency | Program Function | Voltage | Current, A | Temp. Setting, °F | Switch Type | Ht. | Wd. | Dp. | Mounting Fasteners Included | Each | |
For Heaters | ||||||||||||
Push Button Control | ||||||||||||
Electric | Single Stage | Daily | 240V AC | 15 | 40° to 86° | DPST | 4 7/8" | 2 3/4" | 7/8" | Yes | 0000000 | 0000000 |