About Motor Switches and Starters
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Choosing an Electrical Switch
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Washdown Enclosed Motor Switches
Steel Housing
and Lockout
Housing, Lockout,
and Power Indicator
Install these switches in areas with oil, coolant, corrosive chemicals, and regular washdowns. They're rated IP69K and NEMA 4X and 12 or 12K. Since they’re already protected inside a housing, you can mount them to a wall if there’s no space left in your electrical panel. You need to grip and twist the lever to actuate, so they won’t accidentally turn on or off if something bumps into them. To lock them in the off position, attach a padlock (not included) to the lever. Use these switches to turn motors on and off, or with other circuits such as lighting and electric heat circuits. They do not provide overload protection.
Switches with a plastic housing can be turned into a handheld control for moving around your workstation by attaching a cord and cord grip. The housing is PBT polyester, so it won’t swell in moist environments.
Switches with a power indicator use LED lights to show the status of power flowing into the switch and power flowing from the switch to your motor. This can help you check for issues, such as a welded contact or phase loss, without having to open the housing.
For technical drawings and 3-D models, click on a part number.
Switching | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. of Circuits Controlled | Electrical Phase (hp) | Switch Starting Position | Industry Designation | Current, A | Voltage | Ht. | Wd. | Wire Connection Type | Environmental Rating | Specifications Met | Each | |
Stays Switched (Maintained) | ||||||||||||
304 Stainless Steel Housing with Lockout | ||||||||||||
| 3 | Three (7 1/2 hp @ 240 V AC) | 3 Off (Normally Open) | 3PST-NO | 30 | 600V AC | 7.1" | 4.9" | Screw Terminals | NEMA 4X, IP69K, NEMA 12K | UL Listed, C-UL Listed, UL 746C, UL 94 5VA | 00000000 | 0000000 |
| 3 | Three (30 hp @ 240 V AC) | 3 Off (Normally Open) | 3PST-NO | 60 | 600V AC | 10.3" | 7.3" | Screw Terminals | NEMA 4X, IP69K, NEMA 12K | UL Listed, C-UL Listed, UL 746C, UL 94 5VA | 00000000 | 00000000 |
| 3 | Three (30 hp @ 240 V AC) | 3 Off (Normally Open) | 3PST-NO | 100 | 600V AC | 10.3" | 7.3" | Screw Terminals | NEMA 4X, IP69K, NEMA 12K | UL Listed, C-UL Listed, UL 746C, UL 94 5VA | 00000000 | 00000000 |
PBT Plastic Housing with Lockout | ||||||||||||
| 3 | Three (7 1/2 hp @ 240 V AC) | 3 Off (Normally Open) | 3PST-NO | 30 | 600V AC | 7.6" | 5.1" | Screw Terminals | NEMA 4X, IP69K, NEMA 12K | UL Listed, C-UL Listed, UL 746C, UL 94 5VA | 0000000 | 000000 |
| 3 | Three (30 hp @ 240 V AC) | 3 Off (Normally Open) | 3PST-NO | 60 | 600V AC | 10" | 6.9" | Screw Terminals | NEMA 4X, IP69K, NEMA 12K | UL Listed, C-UL Listed, UL 746C, UL 94 5VA | 00000000 | 000000 |
| 3 | Three (30 hp @ 240 V AC) | 3 Off (Normally Open) | 3PST-NO | 100 | 600V AC | 10" | 6.9" | Screw Terminals | NEMA 4X, IP69K, NEMA 12K | UL Listed, C-UL Listed, UL 746C, UL 94 5VA | 00000000 | 000000 |
PBT Plastic Housing with Lockout, Power Indicator | ||||||||||||
| 3 | Three (7 1/2 hp @ 240 V AC) | 3 Off (Normally Open) | 3PST-NO | 30 | 600V AC | 8.2" | 5.3" | Screw Terminals | NEMA 4X, IP69K, NEMA 12 | UL Listed, C-UL Listed, UL 746C, UL 94 5VA | 00000000 | 000000 |
| 3 | Three (30 hp @ 240 V AC) | 3 Off (Normally Open) | 3PST-NO | 60 | 600V AC | 10.9" | 7.3" | Screw Terminals | NEMA 4X, IP69K, NEMA 12 | UL Listed, C-UL Listed, UL 746C, UL 94 5VA | 00000000 | 000000 |
| 3 | Three (30 hp @ 240 V AC) | 3 Off (Normally Open) | 3PST-NO | 100 | 600V AC | 10.9" | 7.3" | Screw Terminals | NEMA 4X, IP69K, NEMA 12 | UL Listed, C-UL Listed, UL 746C, UL 94 5VA | 00000000 | 000000 |
Build-Your-Own Manual Motor Starters
Assemble your own motor starter by combining a switch and a thermal overload element.
NEMA 4 and 12 rated switches are protected from washdowns and oil/coolant dripping.
For technical drawings and 3-D models, click on a part number.
| No. of Circuits Controlled | Electrical Phase (hp) | Ht. | Wd. | Wire Connection Type | Environment | Environmental Rating | Each | |
Without Power-Indicating Light | ||||||||
|---|---|---|---|---|---|---|---|---|
Zinc Housing | ||||||||
| 1 | Single (1 hp @ 115 V AC) Single (1 hp @ 230 V AC) | 5.5" | 3.6" | Screw Terminals | Oily, Washdown | NEMA 4, NEMA 12 | 0000000 | 0000000 |
| 2 | Single (3/4 hp @ 115 V DC) Single (3/4 hp @ 230 V DC) Single (1 hp @ 115 V AC) Single (1 hp @ 230 V AC) | 5.5" | 3.6" | Screw Terminals | Oily, Washdown | NEMA 4, NEMA 12 | 0000000 | 000000 |
Enclosed Heavy Duty Build-Your-Own Manual Motor Starters
Combine a switch with a thermal overload element to build a starter that can handle high-current-rated motors. All are housed in a durable steel enclosure. They’re also known as NEMA starters.
NEMA 12 rated switches are protected from oil/coolant dripping.
Thermal overload elements shut motors off if current exceeds the full-load current rating. Three elements are required. To Order: Please specify the full-load current rating of your motor. If the full-load current rating is not shown on the motor’s faceplate, estimate the current rating (given the motor’s horsepower and voltage).
For technical drawings and 3-D models, click on a part number.
| NEMA Contact Size | Electrical Phase (hp) | Housing Material | Ht. | Wd. | Dp. | Wire Connection Type | Environment | Environmental Rating | Specifications Met | Each | |
NEMA 12 Motor Starters | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| M0 | Three (2 hp @ 115 V AC) Three (3 hp @ 230 V AC) Three (5 hp @ 460 V AC) | Painted Steel | 9.4" | 5.5" | 5" | Screw Terminals | Oily | NEMA 12 | UL Listed, CSA Certified | 0000000 | 000000000 |
| M1 | Three (3 hp @ 115 V AC) Three (7 1/2 hp @ 230 V AC) Three (10 hp @ 460 V AC) | Painted Steel | 9.4" | 5.5" | 5" | Screw Terminals | Oily | NEMA 12 | UL Listed, CSA Certified | 0000000 | 00000000 |
| Each | ||
| 000000 | 000000 |
Washdown Programmable Three-Phase AC Motor Speed Controls
Rated NEMA 4, these controls are protected from washdowns. Set them to automatically adjust motor speed. Wire a potentiometer (not included) for remote manual control.
Controls rated NEMA 12 also protect against splashes of oil and coolant when used indoors.
For technical drawings and 3-D models, click on a part number.
Output | Input Signal | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Horsepower, hp | Input Voltage | Current, A | Voltage | Frequency, Hz | Voltage | Current, mA | Ht. | Wd. | Reversing Capability | Environmental Rating | Specifications Met | Each | |
Single-Phase Input | |||||||||||||
| 1 | 200-240V AC | 4.2 | 200V AC-240V AC | 0-120 | 0-10V DC | 4-20 | 8" | 6.5" | Reversing | NEMA 4, NEMA 12, IP65 | UL Listed C-UL Listed CE Marked | 0000000 | 0000000 |
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 | ||||||
|---|---|---|---|---|---|---|---|
| Current, A | Voltage | Industry Designation | Ht. | Wd. | Environmental Rating | Each | |
Stays Switched (Maintained) | |||||||
2 Circuits with Lockout/Photovoltaic | |||||||
| 32 | 800V DC | DPST | 11" | 7 1/2" | IP66, IP67, NEMA 3S, NEMA 6P, NEMA 12 | 0000000 | 0000000 |
| "Main Switch" Label with Adhesive Back—13/16" Ht. × 3 3/16" Wd. | 0000000 | Each | 000000 |