Choosing an Electrical Switch
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Potentiometers
Vary electrical flow to control speed, volume, and light intensity. The number of turns affects the resolution—the higher the number, the better the control. Also known as variable output switches. A knob is required (not included).
IP65 rated switches are protected against washdowns.
Switches with ball bearings have a smoother rotation and a longer service life than other potentiometers.
Shaft | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. of Turns | Wattage | For Panel Cutout Dia. | Dp. Behind Panel | Dia. | Dia. | Lg. | Housing Material | Wire Connection Type | No. of Terminals | Environmental Rating | Choose a Max. Resistance, kilohms | Each | ||
| B | 10 | 2 W @ 325 V AC | 7/16" | 1" | 7/8" | 1/4" | 1/2" | Plastic | Tab Terminals | 3 | IP65 | 0000000 | 000000 | |
Harsh Environment Potentiometers
Rated NEMA 13, these potentiometers protect against debris and splashing oil and coolant. Also known as variable output switches, they vary electrical flow to control speed, volume, and light intensity.
NEMA 4X rated potentiometers withstand weather, washdowns, and corrosion.
NEMA 6 potentiometers seal out water from temporary submersion as well as weather and washdowns.
Actuator | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wattage @ Voltage | Max. Voltage | For Panel Cutout Dia. | Dp. Behind Panel | No. of Turns | Dia. | Material | Wire Connection Type | Environmental Rating | Specifications Met | Choose a Max. Resistance | Each | |
Plastic | ||||||||||||
| 2 W @ 120 V AC/ 2 W @ 24 V DC | 500V AC/500V DC | 7/8" (22 mm) | 2 1/4" | 1 | 1 1/8" | Plastic | Screw Terminals | NEMA 4X, NEMA 13, IP65 | UL Listed, C-UL Listed, CE Marked | 000000 | 000000 | |
| 2 W @ 120 V AC/ 2 W @ 24 V DC | 500V AC/500V DC | 1 3/16" (30 mm) | 2 1/8" | 1 | 1 1/8" | Plastic | Screw Terminals | NEMA 4X, NEMA 13, IP65 | UL Listed, C-UL Listed, CE Marked | 0000000 | 00000 | |
Metal | ||||||||||||
| 2 W @ 300 V DC 2 W @ 300 V AC | 300V AC/300V DC | 1 3/16" (30 mm) | 1 15/16" | 1 | 1 1/8" | Plastic | Screw Terminals | NEMA 6, NEMA 13, IP65 | UL Listed, C-UL Listed, CSA Certified, CE Marked | 0000000 | 000000 | |
Fixture-Mount Motion-Sensing Light Controls
Detect motion near your light fixture to turn lights on and off. Compared to switch-mount motion controls that detect from a single wall, these controls have a better view of the entire space since they sense motion from above. Also known as occupancy sensors, these controls have an infrared sensor that activates when it detects a change in heat. To work properly, they need an unobstructed view of your space. All have a time delay to turn lights off after a set time. Rated IP65, these controls are protected from washdowns.
These light controls monitor motion in a full circle for coverage in all directions. Those that cover 7,690 sq. ft. have lenses that can be swapped out to limit where they sense. Half-circle sensing lenses are best for concentrating coverage to a certain part of a room, such as a workstation or an entrance. Narrow sensing lenses are best for the end of aisles in spaces with high ceilings like those in warehouses and factories.
For technical drawings and 3-D models, click on a part number.
Conduit | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Coverage, sq. ft. | Features | Sensing Spread | No. of Circuits Controlled | Input Voltage | Wattage | Max. Mounting Ht., ft. | Color | Housing Material | Connection Gender | Trade Size | Thread Type | Ht. | Dia. | Dp. | Wire Connection Type | Specifications Met | Each | |
| 7,690 | Dimmer Switch | Full Circle | 1 | 120V AC 277V AC | 800 W @ 120 V AC 1,200 W @ 277 V AC | 45 | White | Plastic | Male | 1/2 | NPT | 2 1/8" | 4" | 4 3/4" | Wire Leads | UL Listed, C-UL Listed | 00000000 | 0000000 |
Variable-Speed Foot Switches
When the pedal is pressed, the built-in potentiometer adjusts the resistance to vary the speed for motor drives. These switches can be wired to either increase or decrease the current when actuated. All are rated NEMA 4 and 13 for protection from washdowns and oil/coolant spraying.
For technical drawings and 3-D models, click on a part number.
Mounting | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. of Circuits Controlled | Switch Starting Position | Switch Action | Industry Designation | Switching Current @ Voltage | No. of Terminals | Quick-Disconnect Tab Wd. | Conduit Trade Size | Environmental Rating | Fasteners Included | No. of Holes | Hole Dia. | Choose a Max. Resistance | Each | |
With Quick-Disconnect Terminals | ||||||||||||||
Iron Housing | ||||||||||||||
| 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 15 A @ 125 V AC/250 V AC | 3 | 0.187" | 3/4 | IP56 NEMA 4 NEMA 13 | No | 3 | 0.31" | 0000000 | 0000000 | |
Iron Housing with Aluminum Guard | ||||||||||||||
| 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 15 A @ 125 V AC/250 V AC | 3 | 0.187" | 3/4 | IP56 NEMA 4 NEMA 13 | No | 3 | 0.31" | 0000000 | 000000 | |
Linear Motion Position-Measuring Transmitters
Measure the position of an object moving in a straight line. Also known as string pots, these transmitters have an extendable wire cable that measures the relative distance between two points. They convert measurements to an electrical signal for use in controlling system automation.
All are IP rated for some protection from dust. IP67-rated transmitters also seal out water when briefly submersed.
Overall | Mount. Holes | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stroke Lg. | Accuracy Range | Repeatability Range | Max. Input Voltage | Input Resistance, kOhm | Output Voltage | Voltage Resolution | Environmental Rating | Wire Lead Lg. | Eyelet ID | Lg. | Wd. | Ht. | Ctr.-to-Ctr. | Dia. | No. of | Each | |
Style 1 | |||||||||||||||||
| 4 3/4" | -1% to +1% | -0.05% to +0.05% | 30V AC 30V DC | 10 | 28.2V AC 28.2V DC | 0.0001 mV AC 0.0001 mV DC | IP50 | 40" | 0.191" | 3.1" | 1.9" | 2.6" | (A) 1.4" | 1/8" | 2 | 000000 | 0000000 |
| 12 1/2" | -0.25% to +0.25% | -0.05% to +0.05% | 30V AC 30V DC | 10 | 28.2V AC 28.2V DC | 0.0001 mV AC 0.0001 mV DC | IP50 | 40" | 0.191" | 3.1" | 1.9" | 2.6" | (A) 1.4" | 1/8" | 2 | 000000 | 000000 |
| 25" | -0.25% to +0.25% | -0.05% to +0.05% | 30V AC 30V DC | 10 | 28.2V AC 28.2V DC | 0.0001 mV AC 0.0001 mV DC | IP50 | 40" | 0.191" | 3.1" | 1.9" | 2.6" | (A) 1.4" | 1/8" | 2 | 000000 | 000000 |
| 50" | -0.25% to +0.25% | -0.05% to +0.05% | 30V AC 30V DC | 10 | 28.2V AC 28.2V DC | 0.0001 mV AC 0.0001 mV DC | IP50 | 40" | 0.191" | 3.1" | 1.9" | 2.6" | (A) 1.4" | 1/8" | 2 | 000000 | 000000 |
Style 2 | |||||||||||||||||
| 120" | -0.35% to +0.35% | -0.05% to +0.05% | 30V AC 30V DC | 10 | 28.2V AC 28.2V DC | 0.0001 mV AC 0.0001 mV DC | IP67 | 40" | 0.191" | 2.48" | 5.2" | 5.09" | (A) 4 3/4" (B) 4.62" (C) 2.2" | 7/32" 3/16" 3/16" | 6 | 000000 | 000000 |
Miniature Rotary Motion Position-Measuring Transmitters
Often used with servomotors, these transmitters have a mounting hole pattern that fits a three-hole 28 mm BC servomotor face. Also known as encoders, these miniature transmitters convert rotary motion to an electrical signal that indicates distance, direction, and speed of travel. They're commonly used in control systems to automate servomotors, robotics, and assembly machines.
Transmitters have NPN Open Collector output that requires a pull-up resistor (not included) for operation. Output channel Z is also known as an index channel. You must use transmitters with a controller that has quadrature detection to get a 4X resolution increase. All meet IP64 for protection from dust and water spray.
Use a flexible shaft coupling (not included) to connect the transmitter shaft to a drive shaft.
Mount. Holes | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Output Channels | Resolution Increase | For Max. Shaft Speed, rpm | Input Voltage | Max. Input Current, mA | Output Current, mA | Shaft Coupling Required | Body Material | Housing Material | Shaft Material | Thread Size | Thread Pitch, mm | Fasteners Included | Choose a Resolution | Each | |
Quadrature with Index Output Channel | |||||||||||||||
| A, B, Z | 2X, 4X | 8,000 | 5V DC-28V DC | 65 | 20 | Yes | Aluminum | Plastic | Stainless Steel | M3 | 0.5 | No | 000000 | 0000000 | |
Miniature Rotary Motion Position-Measuring Transmitters with Mounting Plate
Slide one of these transmitters onto a motor shaft in your application—they have a flexible mounting plate that compensates for shaft misalignment and vibration. Also known as encoders, these miniature transmitters convert rotary motion to an electrical signal that indicates distance, direction, and speed of travel. They're often used to automate servomotors, robotics, and assembly machines.
Transmitters have NPN Open Collector output that requires a pull-up resistor (not included) for operation. Output channel Z is also known as an index channel. You must use transmitters with a controller that has quadrature detection to get a 4X resolution increase. All meet IP64 for protection from dust and water spray.
Mount. Holes | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Diameter | Output Channels | Resolution Increase | For Max. Shaft Speed, rpm | Input Voltage | Max. Input Current, mA | Output Current, mA | Body Material | Housing Material | Mount. Plate Wd. | Ctr.-to-Ctr. | Thread Size | Fasteners Included | Choose a Resolution | Each | |
Quadrature with Index Output Channel | |||||||||||||||
| 1/4" | A, B, Z | 2X, 4X | 8,000 | 5V DC-28V DC | 65 | 20 | Aluminum | Plastic | 2.16" | 1.81" | 6-32 | No | 000000 | 0000000 | |
| 3/8" | A, B, Z | 2X, 4X | 8,000 | 5V DC-28V DC | 65 | 20 | Aluminum | Plastic | 2.16" | 1.81" | 6-32 | No | 000000 | 000000 | |
Sanitary Rotary Motion Position-Measuring Transmitters
Also known as encoders, these sanitary transmitters convey motion to an electrical signal that conveys distance, direction, and speed. They’re often used in control systems to automate servomotors, robotics, and assembly machines in sanitary environments such as food and pharmaceutical plants. Made of corrosion-resistant stainless steel, they won’t rust from frequent washdowns with harsh cleaners. These transmitters are sealed and have a highly polished surface, leaving no room for bacteria to grow and making them easier to clean. They’re rated IP67 for protection from dust, high-pressure jets of water, and submersion in up to a meter of water for 30 minutes.
To achieve a 4X resolution increase, use these transmitters with a controller that has quadrature detection.
Transmitters with three mounting holes are designed to fit on a three-hole servomotor face.
Connect transmitters to counters and controllers with cables (sold separately).
Use a flexible shaft coupling to connect the transmitter shaft to a drive shaft.
Overall | Shaft | Mounting Holes | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Counter Function | Output Channels | Resolution | Resolution Increase | For Max. Shaft Speed, rpm | Input Voltage | Lg. | Ht. | Dia. | Lg. | Mounting Plate Dia. | No. of | Ctr.-to-Ctr. | Thread Size | Specifications Met | Each | |
316 Stainless Steel Body and 303 Stainless Steel Shaft | ||||||||||||||||
Quadrature with Index Output Channel—20mA Output Current | ||||||||||||||||
| Up and Down | A, B, Z | 600 | 2X, 4X | 8,000 | 4.75-28V DC | 2.44" | 3.13" | 0.4" | 0.4" | 2.29" | 3 | 1.43" | M4 × 5 mm | CE Marked | 00000000 | 0000000 |
| Up and Down | A, B, Z | 3,600 | 2X, 4X | 8,000 | 4.75-28V DC | 2.44" | 3.13" | 0.4" | 0.4" | 2.29" | 3 | 1.43" | M4 × 5 mm | CE Marked | 00000000 | 00000000 |
Overall | Shaft | Mounting Plate | Mounting Holes | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Counter Function | Output Channels | Resolution | Resolution Increase | For Max. Shaft Speed, rpm | Input Voltage | Lg. | Ht. | Dia. | Lg. | Lg. | Wd. | No. of | Ctr.-to-Ctr. | Dia. | Specifications Met | Each | |
316 Stainless Steel Body and 303 Stainless Steel Shaft | |||||||||||||||||
Quadrature with Index Output Channel—20mA Output Current | |||||||||||||||||
| Up and Down | A, B, Z | 600 | 2X, 4X | 8,000 | 4.75-28V DC | 3.175" | 3 1/4" | 3/8" | 1 1/16" | 2 1/2" | 2 1/2" | 4 | 2.06" | 7/32" | CE Marked | 00000000 | 000000000 |
| Up and Down | A, B, Z | 3,600 | 2X, 4X | 8,000 | 4.75-28V DC | 3.175" | 3 1/4" | 3/8" | 1 1/16" | 2 1/2" | 2 1/2" | 4 | 2.06" | 7/32" | CE Marked | 00000000 | 00000000 |
| Lg. | Each | |
| 32 3/4 " | 00000000 | 0000000 |