Choosing an Electrical Switch
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Durable Disconnect Switches
Protected by a steel enclosure, these switches withstand tougher conditions than switches in a plastic housing. Also known as safety switches, they 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.
Switches with a fuse holder are used where overload protection is needed. When the current exceeds the fuse’s rating, the fuse will blow, interrupting the circuit to prevent the switch from overheating, breaking, or causing a fire. These switches require rejection-style fuse clips when used with UL Class RK1, RK5, or T fuses. Note: Horsepower ratings are based on time-delay fuses installed.
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. | Environmental Rating | Specifications Met | Each | Each | ||
Powder-Coated Steel with Red Actuator | ||||||||||||||
2 Circuits with Lockout, Safety Interlock, Fuse Holder | ||||||||||||||
| 30 | 240V AC/ 250V DC | Stays Switched (Maintained) | DPST | Single (3 hp @ 240 V AC) Three (7 1/2 hp @ 240 V AC) | 3 | RK1, RK5, K5, H | 14 1/4" | 6 5/8" | NEMA 1 | UL Listed | 0000000 | 0000000 | 00000000 | 000000 |
| 100 | 240V AC/ 250V DC | Stays Switched (Maintained) | DPST | Single (15 hp @ 240 V AC) | 3 | RK1, RK5, K5, T, H | 23 1/8" | 11 3/4" | NEMA 1 | UL Listed | 0000000 | 000000 | 00000000 | 00000 |
2 Circuits with Lockout, Fuse Holder | ||||||||||||||
| 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" | NEMA 1 | UL Listed | 0000000 | 000000 | 00000000 | 00000 |
| Rejection-Style Fuse Clip for T Fuse Class | 00000000 | 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 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 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 | 0000000 | 00000000 | 0000000 |
| 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 |
| Rejection-Style Fuse Clip for T Fuse Class | 00000000 | Each | 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.
Switching | Plastic Housing with Red Actuator | ||||||
|---|---|---|---|---|---|---|---|
| Current, A | Voltage | Industry Designation | Ht. | Wd. | Environmental Rating | Each | |
Stays Switched (Maintained) | |||||||
2 Circuits with Lockout/Photovoltaic | |||||||
| 20 | 800V DC | DPST | 9 13/16" | 6 5/16" | IP66 | 0000000 | 0000000 |
| 32 | 800V DC | DPST | 11" | 7 1/2" | IP66, IP67, NEMA 3S, NEMA 6P, NEMA 12 | 0000000 | 000000 |
| 50 | 800V DC | DPST | 12 5/8" | 8 11/16" | IP65, NEMA 3R | 0000000 | 000000 |
| 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 |