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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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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. A safety interlock keeps the door closed when the switch is on, and prevents the switch from turning on when the door is open. They have a lockout to secure in the off position using a padlock (not included).
Use switches with a fuse holder where overload protection is needed. 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.
For technical drawings and 3-D models, click on a part number.
Switching | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Current, A | Voltage | Switch Action | Industry Designation | Electrical Phase (hp) | For No. of Wires | For Fuse Class | Ht. | Wd. | Environmental Rating | Specifications Met | Each | |
Enamel-Coated Steel with Black Actuator | ||||||||||||
3 Circuits with Lockout, Safety Interlock | ||||||||||||
| 30 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PDT | Single (10 hp @ 600 V AC) Single (5 hp @ 240 V AC) Single (7 1/2 hp @ 480 V AC) | 3 | __ | 29 15/16" | 12" | NEMA 1 | UL Listed | 000000 | 0000000 |
| 60 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PDT | Single (10 hp @ 240 V AC) Single (25 hp @ 480 V AC) Single (30 hp @ 600 V AC) | 3 | __ | 29 15/16" | 12" | NEMA 1 | UL Listed | 000000 | 000000 |
| 100 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PDT | Single (20 hp @ 240 V AC) Single (40 hp @ 480 V AC) Single (40 hp @ 600 V AC) | 3 | __ | 29 15/16" | 12" | NEMA 1 | UL Listed | 000000 | 00000000 |
3 Circuits with Lockout, Safety Interlock, Fuse Holder | ||||||||||||
| 30 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PDT | Single (3 hp @ 240 V AC) Three (5 hp @ 480 V AC) Three (7 1/2 hp @ 600 V) | 3 | RK1, RK5, J, K5, H | 38 7/16" | 12" | NEMA 1 | UL Listed | 000000 | 00000000 |
| 60 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PDT | Single (5 hp @ 480 V AC) Three (15 hp @ 480 V AC) Three (15 hp @ 600 V AC) | 3 | RK1, RK5, J, K5, H | 38 7/16" | 12" | NEMA 1 | UL Listed | 000000 | 00000000 |
| 100 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PDT | Single (10 hp @ 480 V AC) Three (25 hp @ 480 V AC) Three (30 hp @ 600 V AC) | 3 | RK1, RK5, J, K5, H | 38 7/16" | 12" | NEMA 1 | UL Listed | 000000 | 00000000 |