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.
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 | |
Linear Motion Potentiometers
Pair these potentiometers with a controller to monitor the position of moving parts or send instructions to an electrical system. They have a rod that slides back and forth against an internal resistor, which increases or decreases the voltage flowing out to your controller. To monitor the position of a moving part, such as a robotic component, connect it to the rod. As the part moves, it pushes the rod back and forth, which allows the controller to observe and report the part’s exact position. To use these potentiometers as part of a controls system, connect them to a volume slider or other manual control. When you move the slider, the controller converts its position into instructions for electrical equipment, such as adjusting volume levels. These potentiometers are also called variable output switches.
For technical drawings and 3-D models, click on a part number.
Lg. | Rod | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stroke | Retracted | Extended | Wattage | Wd. | Ht. | Dia. | Thread Size | Material | Housing Material | Wire Connection Type | Environmental Rating | Each | |
5 kilohms Max. Resistance | |||||||||||||
| 5/32" | 1.59" | 1.74" | 0.125 W @ 200 V DC | 1/4" | 9/32" | 1/16" | 0-80 | 303 Stainless Steel | Plastic | Wire Leads | IP45 | 0000000 | 000000 |
| 1/4" | 1.59" | 1.84" | 0.125 W @ 200 V DC | 1/4" | 9/32" | 1/16" | 0-80 | 303 Stainless Steel | Plastic | Wire Leads | IP45 | 0000000 | 00000 |
| 1/2" | 2.22" | 2.72" | 0.25 W @ 300 V DC | 9/32" | 11/32" | 3/32" | 2-56 | 303 Stainless Steel | Plastic | Wire Leads | IP45 | 0000000 | 00000 |
10 kilohms Max. Resistance | |||||||||||||
| 5/32" | 1.59" | 1.74" | 0.125 W @ 200 V DC | 1/4" | 9/32" | 1/16" | 0-80 | 303 Stainless Steel | Plastic | Wire Leads | IP45 | 0000000 | 00000 |
| 1/4" | 1.59" | 1.84" | 0.125 W @ 200 V DC | 1/4" | 9/32" | 1/16" | 0-80 | 303 Stainless Steel | Plastic | Wire Leads | IP45 | 0000000 | 00000 |
| 1/2" | 2.22" | 2.72" | 0.25 W @ 300 V DC | 9/32" | 11/32" | 3/32" | 2-56 | 303 Stainless Steel | Plastic | Wire Leads | IP45 | 0000000 | 00000 |
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 | |
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 | |