About Motor Switches and Starters
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Choosing an Electrical Switch
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Raintight Enclosed Motor Switches
Start and stop motors outdoors and in other wet environments. Rated NEMA 3R, these switches seal out rain and light splashes. They’re housed in a protective aluminum enclosure, so you don’t need to mount them inside an electrical panel. The enclosure is lighter in weight than stainless steel enclosures yet still stands up to water and oil.
In addition to turning motors on and off, these switches work with other circuits, such as lighting and electric heat circuits. They do not provide overload protection.
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) | ||||||||||||
| 2 | Single (3 hp @ 240 V AC) | 2 Off (Normally Open) | DPST-NO | 30 | 600V AC | 5.8" | 4.5" | Screw Terminals | NEMA 3R | CSA Certified, UL Listed, UL 94 V-2 | 0000000 | 000000 |
| 3 | Three (7 1/2 hp @ 240 V AC) | 3 Off (Normally Open) | 3PST-NO | 30 | 600V AC | 5.8" | 4.5" | Screw Terminals | NEMA 3R | CSA Certified, UL Listed, UL 94 V-2 | 0000000 | 000000 |
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 | |||||||
| 50 | 800V DC | DPST | 12 5/8" | 8 11/16" | IP65, NEMA 3R | 0000000 | 0000000 |
| 63 | 650V DC | DPST | 12 5/8" | 8 11/16" | IP65, NEMA 3R | 0000000 | 000000 |
| "Main Switch" Label with Adhesive Back—13/16" Ht. × 3 3/16" Wd. | 0000000 | Each | 000000 |
Outdoor Durable Disconnect Switches
A raintight NEMA 3R rated enclosure protects these switches from falling liquids and light splashing. The enclosure is steel, so it withstands tougher conditions than plastic enclosures. All have quick-make/quick-break action to eliminate arcing and prolong switch life. They have a lockout to secure in the off position using a padlock (not included).
Switches with safety interlock keep the door closed when the switch is on, and prevent the switch from turning on when the door is open.
Use switches with a fuse holder where overload protection is needed. When the current exceeds the rating of the fuse, it blows. This interrupts the circuit and prevents overheating, damage, and fire. When used with UL Class RK1, RK5, or T fuses, they require rejection-style fuse clips. Note: Horsepower ratings are based on time-delay fuses installed.
Switches with a viewing window let you see if the fuses have blown without having to open the enclosure.
For technical drawings and 3-D models, click on a part number.
Switches | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Switching | Rejection-Style Fuse Clips for RK1 and RK5 Fuse Class | |||||||||||
| Current, A | Voltage | Switch Action | Industry Designation | Electrical Phase (hp) | For No. of Wires | For Fuse Class | Ht. | Wd. | Each | Each | ||
Gray Enamel-Coated Steel with Black/Red Actuator | ||||||||||||
3 Circuits with Lockout, Safety Interlock, Viewing Window | ||||||||||||
| 30 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PST | Single (10 hp @ 240 V AC) Three (30 hp @ 600 V AC) | 3 | __ | 15" | 7 3/4" | 0000000 | 0000000 | 000000 | 00 |
3 Circuits with Lockout, Safety Interlock, Fuse Holder, Viewing Window | ||||||||||||
| 30 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PST | Three (20 hp @ 600 V AC) | 3 | RK1, RK5, J, H | 15" | 7 3/4" | 0000000 | 000000 | 00000000 | 000000 |
| 30 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PST | Three (20 hp @ 600 V AC) | 4 | RK1, RK5, J, H | 15" | 7 3/4" | 0000000 | 000000 | 00000000 | 00000 |
| 60 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PST | Single (30 hp @ 240 V AC) Three (60 hp @ 600 V AC) | 3 | __ | 18 1/2" | 9 1/16" | 0000000 | 000000 | 000000 | 00 |
| 60 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PST | Three (50 hp @ 600 V AC) | 3 | RK1, RK5, J, H | 17 1/2" | 10 1/2" | 0000000 | 000000 | 00000000 | 00000 |
| 60 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PST | Three (50 hp @ 600 V AC) | 4 | RK1, RK5, J, H | 18 1/2" | 9 1/16" | 0000000 | 000000 | 00000000 | 00000 |
| 100 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PST | Three (75 hp @ 600 V AC) | 4 | RK1, RK5, J, H | 22 1/8" | 9 1/16" | 0000000 | 00000000 | 00000000 | 00000 |
| 200 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PST | Three (150 hp @ 600 V AC) | 4 | RK1, RK5, J, H | 29" | 17" | 0000000 | 00000000 | 00000000 | 00000 |
Gray Powder-Coated Steel with Red Actuator | ||||||||||||
2 Circuits with Lockout, Fuse Holder | ||||||||||||
| 30 | 240V AC/ 250V DC | Stays Switched (Maintained) | DPST | Single (3 hp @ 240 V AC) | 3 | RK1, RK5, K5, H | 8 9/16" | 5 7/16" | 0000000 | 000000 | 00000000 | 000000 |
| 60 | 240V AC/ 250V DC | Stays Switched (Maintained) | DPST | Single (10 hp @ 240 V AC) | 3 | RK1, RK5, K5, H | 10 1/16" | 6 7/16" | 0000000 | 000000 | 00000000 | 00000 |
2 Circuits with Lockout, Safety Interlock, Fuse Holder | ||||||||||||
| 100 | 240V AC/ 250V DC | Stays Switched (Maintained) | DPST | Single (15 hp @ 240 V AC) | 3 | RK1, RK5, K5, T, H | 23 1/8" | 12" | 0000000 | 000000 | 00000000 | 00000 |
3 Circuits with Lockout | ||||||||||||
| 30 | 240V AC/ 250V DC | Stays Switched (Maintained) | 3PST | Three (7 1/2 hp @ 240 V AC) | 3 | __ | 6 3/8" | 4 9/16" | 0000000 | 000000 | 000000 | 00 |
| 60 | 240V AC/ 250V DC | Stays Switched (Maintained) | 3PST | Three (15 hp @ 240 V AC) | 3 | __ | 8 9/16" | 5 7/16" | 0000000 | 000000 | 000000 | 00 |
3 Circuits with Lockout, Fuse Holder | ||||||||||||
| 30 | 240V AC/ 250V DC | Stays Switched (Maintained) | 3PST | Single (3 hp @ 240 V AC) Three (7 1/2 hp @ 240 V AC) | 4 | RK1, RK5, K5, H | 8 9/16" | 5 7/16" | 0000000 | 000000 | 00000000 | 000000 |
| 60 | 240V AC/ 250V DC | Stays Switched (Maintained) | 3PST | Single (10 hp @ 240 V AC) Three (15 hp @ 240 V AC) | 4 | RK1, RK5, K5, H | 10 1/16" | 6 7/16" | 0000000 | 000000 | 00000000 | 00000 |
3 Circuits with Lockout, Safety Interlock | ||||||||||||
| 100 | 240V AC/ 250V DC | Stays Switched (Maintained) | 3PST | Three (30 hp @ 240 V AC) | 3 | __ | 23 1/8" | 12" | 0000000 | 000000 | 000000 | 00 |
3 Circuits with Lockout, Safety Interlock, Fuse Holder | ||||||||||||
| 100 | 240V AC/ 250V DC | Stays Switched (Maintained) | 3PST | Single (15 hp @ 240 V AC) Three (30 hp @ 240 V AC) | 4 | RK1, RK5, K5, T, H | 23 1/8" | 12" | 0000000 | 000000 | 00000000 | 00000 |
| Rejection-Style Fuse Clip for T Fuse Class | 00000000 | Each | 000000 |
Manual Transfer Switches
If there’s a power outage, flip the toggle for each circuit on these switches to backup power. Each circuit can also be turned off completely. To prevent injury and damage to your generators, they are open transition, meaning the contacts disconnect from one power source before connecting to another. This is also known as break-before-make switching.
Use them with a portable generator.
NEMA 3R switches can be used outdoors since they seal out rain, snow, and sleet.
Switches with a key lock prevent unauthorized changes to the switch.
Housing | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. Power | Switching Current (No. of Switches) | Circuit Breaker Breakthrough Current | Electrical Phase | Housing Material | Ht. | Wd. | Dp. | Generator Connection Style | Features | Specifications Met | Each | |
NEMA 3R | ||||||||||||
6 Circuits Total | ||||||||||||
| 7,500W | 20 A @ 240 V AC (1 DPDT) 15 A @ 120 V AC (4 SPDT) | 10,000A | Single | Powder-Coated Steel | 12 3/4" | 8" | 5" | NEMA L14-30 | Key Lock | UL Listed, UL 1008, NEC Article 702 | 0000000 | 0000000 |
| 12,500W | 20 A @ 240 V AC (1 DPDT) 15 A @ 120 V AC (4 SPDT) | 10,000A | Single | Powder-Coated Steel | 12 3/4" | 8" | 5" | CS6375 | Key Lock | UL Listed, UL 1008, NEC Article 702 | 0000000 | 000000 |
10 Circuits Total | ||||||||||||
| 7,500W | 20 A @ 240 V AC (1 DPDT) 20 A @ 120 VAC (2 SPDT) 15 A @ 120 V AC (6 SPDT) | 10,000A | Single | Powder-Coated Steel | 12 3/4" | 12" | 5" | NEMA L14-30 | Key Lock | UL Listed, UL 1008, NEC Article 702 | 0000000 | 000000 |
| 12,500W | 20 A @ 240 V AC (1 DPDT) 20 A @ 120 VAC (2 SPDT) 15 A @ 120 V AC (6 SPDT) | 10,000A | Single | Powder-Coated Steel | 12 3/4" | 12" | 5" | CS6375 | Key Lock | UL Listed, UL 1008, NEC Article 702 | 0000000 | 000000 |