Choosing an Electrical Switch
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Rotary Switches
Control multiple devices with one switch. Turn the shaft to change switch positions. Each position closes a set of contacts per circuit, so you can select between multiple devices on one or more circuits.
Switches for 13/32" panel cutout diameter require a knob.
For technical drawings and 3-D models, click on a part number.
Shaft | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| No. of Circuits Controlled | Switch Action | No. of Positions | No. of Terminals | Dp. Behind Panel | O'all Dia. | Lg. | Dia. | Each | ||
Nickel-Plated Brass with Black Plastic Knob | ||||||||||
With Solder Pin Terminals for 1/4" Panel Cutout Dia. | ||||||||||
| 1 | Stays Switched (Maintained) | 8 | 9 | 1 1/16" | 9/16" | 13/16" | 1/8" | 2 A @ 125 V AC, 1 A @ 30 V DC | 0000000 | 000000 |
| 2 | Stays Switched (Maintained) | 4 | 10 | 1 1/16" | 9/16" | 13/16" | 1/8" | 2 A @ 125 V AC, 1 A @ 30 V DC | 0000000 | 00000 |
With Solder Turret Terminals for 1/4" Panel Cutout Dia. | ||||||||||
| 1 | Stays Switched (Maintained) | 6 | 7 | 1" | 9/16" | 13/16" | 1/8" | 3 A @ 125 V AC, 2 A @ 30 V DC | 0000000 | 00000 |
Plastic | ||||||||||
With Tab Terminals for 13/32" Panel Cutout Dia. | ||||||||||
| 1 | Stays Switched (Maintained) | 12 | 13 | 13/16" | 1" | 1 1/2" | 1/4" | 2.5 A @ 125 V AC, 0.35 A @ 125 V DC | 00000000 | 0000 |
| 2 | Stays Switched (Maintained) | 6 | 14 | 13/16" | 1" | 1 1/2" | 1/4" | 2.5 A @ 125 V AC, 0.35 A @ 125 V DC | 00000000 | 00000 |
| 3 | Stays Switched (Maintained) | 4 | 15 | 13/16" | 1" | 1 1/2" | 1/4" | 2.5 A @ 125 V AC, 0.35 A @ 125 V DC | 00000000 | 00000 |
| 4 | Stays Switched (Maintained) | 3 | 16 | 13/16" | 1" | 1 1/2" | 1/4" | 2.5 A @ 125 V AC, 0.35 A @ 125 V DC | 00000000 | 00000 |
22 mm Panel-Mount Knob Switches
Set these switches to either spring back (momentary) or stay switched (maintained). They're rated NEMA 4X, 13, and IP66.
Replace contact blocks (sold separately) or add additional contact blocks to control more circuits.
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 | Switching Current @ Voltage | Max. Voltage | Dia. | Dp. Behind Panel | For Max. No. of Contact Blocks | Environmental Rating | Specifications Met | Each | |
With Screw Terminals | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2 Position | |||||||||||||
| 2 | 2 Off (Normally Open) | Springs Back (Momentary), Stays Switched (Maintained) | 4 | DPST-NO | 6 A @ 120 V AC, 3 A @ 24 V DC | 250V DC 500V AC | 13/16" | 1 3/4" | 4 | NEMA 4X, NEMA 13, IP66 | UL Listed, CSA Certified, CE Marked, CCC Marked | 0000000 | 000000 |
| 2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Springs Back (Momentary), Stays Switched (Maintained) | 4 | DPST-1NO/1NC | 6 A @ 120 V AC, 3 A @ 24 V DC | 250V DC 500V AC | 13/16" | 1 3/4" | 4 | NEMA 4X, NEMA 13, IP66 | UL Listed, CSA Certified, CE Marked, CCC Marked | 0000000 | 00000 |
3 Position | |||||||||||||
| 3 | 3 Off (Normally Open) | Springs Back (Momentary), Stays Switched (Maintained) | 6 | 3PST-NO | 6 A @ 120 V AC, 3 A @ 24 V DC | 250V DC 500V AC | 13/16" | 1 3/4" | 6 | NEMA 4X, NEMA 13, IP66 | UL Listed, CSA Certified, CE Marked, CCC Marked | 0000000 | 00000 |
| 3 | 2 Off (Normally Open) and 1 On (Normally Closed) | Springs Back (Momentary), Stays Switched (Maintained) | 6 | 3PST-2NO/1NC | 6 A @ 120 V AC, 3 A @ 24 V DC | 250V DC 500V AC | 13/16" | 1 3/4" | 6 | NEMA 4X, NEMA 13, IP66 | UL Listed, CSA Certified, CE Marked, CCC Marked | 0000000 | 00000 |
| No. of Circuits Controlled | Switch Starting Position | No. of Terminals | Industry Designation | Environmental Rating | Specifications Met | Each | |
| 1 | 1 Off (Normally Open) | 2 | SPST-NO | IP20 | UL Listed, UL 508, CSA Certified, CE Marked | 0000000 | 000000 |
| 1 | 1 On (Normally Closed) | 2 | SPST-NC | IP20 | UL Listed, UL 508, CSA Certified, CE Marked | 0000000 | 00000 |
Battery Knob Switches
Alternate between two batteries without interrupting power. These switches are often used in marine applications.
For technical drawings and 3-D models, click on a part number.
Mounting Holes | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Actuator Material | No. of Terminals | Max. Voltage | Max. Continuous Current | Terminal Size | For Max. Wire Ga. | No. of | Dia. | Ht. | Wd. | Dp. | Environment | Environmental Rating | Specifications Met | Each | |
With Stud Terminals | |||||||||||||||
For 3 5/8" Cutout Dia. | |||||||||||||||
| Plastic | 3 | 32V DC | 350 A @ 32 V DC | 3/8" | 4/0 | 4 | 1/4" | 3 7/8" | 3 7/8" | 3 1/8" | Washdown | IP66 | UL Listed, UL Marine Listed, CE Marked, ISO 8846, SAE J1171 | 00000000 | 000000 |
Rotary Limit Switches
Start or stop equipment after a set number of rotations to avoid over-rotation. For example, if attached to a crane spool, these switches will stop winding or unwinding cable after a certain number of rotations, preventing damage to equipment. Use their shaft to attach them to rotational equipment. They open and close circuits as fast as snap-acting switches.
Gear speed ratio determines when these switches actuate. A gear speed ratio of 5:1 means they actuate after 5 rotations.
For technical drawings and 3-D models, click on a part number.
Housing | Shaft | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gear Speed Ratio | No. of Circuits Controlled | Switch Starting Position | Switch Action | Industry Designation | Switching Current @ Voltage | Max. Voltage | No. of Terminals | Lg. | Ht. | Dp. | Type | Lg. | Dia. | Conduit Trade Size | Environmental Rating | Each | |
With Screw Terminals | |||||||||||||||||
| 5:1 | 2 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 15 A @ 250 V AC, 0.25 A @ 250 V DC | 480V AC 250V DC | 3 | 6" | 2.8" | 4.5" | Keyed | 1 1/2" | 1/2" | 1/2 | NEMA 4 | 0000000 | 000000000 |
| 20:1 | 2 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 15 A @ 250 V AC, 0.25 A @ 250 V DC | 480V AC 250V DC | 3 | 6" | 2.8" | 4.5" | Keyed | 1 1/2" | 1/2" | 1/2 | NEMA 4 | 0000000 | 00000000 |
| 40:1 | 2 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 15 A @ 250 V AC, 0.25 A @ 250 V DC | 480V AC 250V DC | 3 | 6" | 2.8" | 4.5" | Keyed | 1 1/2" | 1/2" | 1/2 | NEMA 4 | 0000000 | 00000000 |
| 100:1 | 2 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 15 A @ 250 V AC, 0.25 A @ 250 V DC | 480V AC 250V DC | 3 | 6" | 2.8" | 4.5" | Keyed | 1 1/2" | 1/2" | 1/2 | NEMA 4 | 0000000 | 00000000 |
Light Dimmers
Adjust the brightness of lights.
Digital Potentiometers
More precise than analog potentiometers, these have a three-digit display that is easy to read. Also known as variable output switches, they vary electrical flow to control speed, volume, and light intensity.
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.
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 | |