Choosing an Electrical Switch
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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 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 | Resolution | Dia. | Material | Wire Connection Type | Environmental Rating | Specifications Met | Choose a Max. Resistance | Each | |
Metal | |||||||||||||
2 W @ 300 V DC 2 W @ 300 V AC | 300V AC/300V DC | 1 3/16" (30 mm) | 1 15/16" | 1 | 5% | 1 1/8" | Plastic | Screw Terminals | NEMA 6, NEMA 13, IP65 | UL Listed, C-UL Listed, CSA Certified, CE Marked | 0000000 | 0000000 |
Panel-Mount Light Dimmers

Brighten or dim your facility or workstation's light from a control panel. These dimmers fit through a standard panel cutout. Lightly press and hold your finger to adjust the light level. Rated IP67, these dimmers are so watertight they could even handle brief submersion. They also seal out dust.
Dimmers are great if you want to control the brightness from one place but turn the light on or off from a switch somewhere else. For example, you might want to dim a light over your storage area from a main control panel for energy efficiency but still be able to turn it on or off when you enter the area.
Dimmers with an on/off switch control power and brightness in one. Quickly tap them to turn the light on or off. When you turn it on, it returns to the last brightness level you set.
For Bulb Type | No. of Circuits Controlled | No. of Terminals | Input Voltage | Max. Current, A | Dia. | Dp. Behind Panel | For Panel Cutout Dia. | For Max. Panel Thick. | Wire Connection Type | Material | Environmental Rating | Each | |
Dimmers | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
LED | 1 | 3 | 12V DC/24V DC | 1.5 | 7/8" | 3/4" | 3/4" | 1/2" | Wire Leads | 304 Stainless Steel | IP67 | 0000000 | 000000 |
Dimmers with On/Off Switch | |||||||||||||
LED | 1 | 3 | 12V DC/24V DC | 1.5 | 7/8" | 3/4" | 3/4" | 1/2" | Wire Leads | 304 Stainless Steel | IP67 | 0000000 | 00000 |
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.
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 Plate | Mounting Holes | ||||||||||||||
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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 |
Programmable Rotary Motion Position-Measuring Transmitters
With adjustable settings for resolution and output type, these transmitters can be programmed to suit your changing processes. Also known as encoders, they convert a shaft’s rotary motion into an electrical signal that indicates distance, direction, and speed. They’re rated IP67, so they can withstand temporary submersion in water.
You’ll need a programming kit (sold separately) to set up these transmitters. They include software stored on a flash drive, as well as a cable and USB adapter for connecting your transmitter to a computer. The software requires a Windows 7 or higher operating system.
Transmitters with a shaft connect to motor shafts with a flexible shaft coupling, so they can be adapted to different diameters.
Transmitters with a shaft opening can be mounted anywhere along a motor shaft—just slide them on. They have a flexible mounting plate that compensates for shaft misalignment and vibration.

Shaft Dia. | Encoder Output Signal | Input Voltage | Max. Input Current, mA | Output Current, mA | For Max. Shaft Speed, rpm | Body Material | Housing Material | Environmental Rating | Mount. Hole Thread Size | Fasteners Included | Resolution | Each | |
Incremental Optical Encoders | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1/4" | NPN Open Collector, Line Driver, Push Pull | 5V DC-30V DC | 65 | 20 | 8,000 | Aluminum | Aluminum | IP67 | 10-32 | No | 1-65,536 | 00000000 | 0000000 |
3/8" | NPN Open Collector, Line Driver, Push Pull | 5V DC-30V DC | 65 | 20 | 8,000 | Aluminum | Aluminum | IP67 | 10-32 | No | 1-65,536 | 00000000 | 000000 |

For Shaft Dia. | Encoder Output Signal | Input Voltage | Max. Input Current, mA | Output Current, mA | For Max. Shaft Speed, rpm | Body Material | Housing Material | Environmental Rating | Mount. Plate Wd. | For Screw Size | Fasteners Included | Resolution | Each | |
Incremental Optical Encoders | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1/4" | NPN Open Collector, Line Driver, Push Pull | 5V DC-30V DC | 65 | 20 | 6,000 | Aluminum | Aluminum | IP67 | 2.83" | No. 6 | No | 1-65,536 | 00000000 | 0000000 |
3/8" | NPN Open Collector, Line Driver, Push Pull | 5V DC-30V DC | 65 | 20 | 6,000 | Aluminum | Aluminum | IP67 | 2.83" | No. 6 | No | 1-65,536 | 00000000 | 000000 |

Data Connection Type | Each | |
USB-A | 00000000 | 0000000 |
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 | ||||||||||||||||
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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 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 | 0000000 |