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Durable Disconnect Switches
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Fuse Holder—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.
Safety Interlock—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.
Viewing Window—Switches with a viewing window let you see the switch position without opening the enclosure.
Switches | Rejection-Style Fuse Clips for RK1 and RK5 Fuse Class | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Switching | ||||||||||||||||||
Current, amp | Voltage | Switch Designation | Electrical Phase (hp) | For No. of Wires | For Fuse UL Class | Ht. | Wd. | For Max. Padlock Shackle Dia. | Wire Connection | Enclosure Rating | Certification | Mil. Spec. | Each | Each | ||||
Gray Enamel-Coated Steel with Black/Red Actuator | ||||||||||||||||||
3 Circuits Controlled with Lockout, Safety Interlock, and Viewing Window | ||||||||||||||||||
| 30 | 600V AC/600V DC | 3PST | Single (10 hp @ 600V AC) Three (30 hp @ 600V AC) | 3 | — | 14 5/8" | 7 9/16" | 3/8" | Tab | NEMA 1 | UL Listed, CSA Certified | Fed. Spec. W-S-865 | 7499K78 | 0000000 | ——— | 0 | ||
3 Circuits Controlled with Lockout, Safety Interlock, Fuse Holder, and Viewing Window | ||||||||||||||||||
| 30 | 600V AC/600V DC | 3PST | Three (20 hp @ 600V AC) | 3 | RK1, RK5, J, K5, H | 14 5/8" | 7 9/16" | 3/8" | Tab | NEMA 1 | UL Listed, CSA Certified | Fed. Spec. W-S-865 | 7499K58 | 000000 | 7499K111 | 000000 | ||
| 30 | 600V AC/600V DC | 3PST | Three (20 hp @ 600V AC) | 4 | RK1, RK5, J, K5, H | 14 5/8" | 7 9/16" | 3/8" | Tab | NEMA 1 | UL Listed, CSA Certified | Fed. Spec. W-S-865 | 7499K73 | 000000 | 7499K111 | 00000 | ||
Outdoor Durable Disconnect Switches
Maintained Switch
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Enamel-Coated Steel Housing—The enclosure is steel, so it withstands tougher conditions than plastic enclosures.
Fuse Holder—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.
Safety Interlock—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.
Viewing Window—Switches with a viewing window let you see the switch position without opening the enclosure.
Lockout—They have a lockout to secure in the off position using a padlock (not included).
NEMA 3R Enclosure Rating—A raintight NEMA 3R rated enclosure protects these switches from falling liquids and light splashing.
Switches | Rejection-Style Fuse Clips for RK1 and RK5 Fuse Class | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Switching | ||||||||||||||||||
Current, amp | Voltage | Switch Designation | Electrical Phase (hp) | For No. of Wires | For Fuse UL Class | Ht. | Wd. | For Max. Padlock Shackle Dia. | Wire Connection | Enclosure Rating | Certification | Mil. Spec. | Each | Each | ||||
Gray Enamel-Coated Steel with Black/Red Actuator | ||||||||||||||||||
3 Circuits Controlled with Lockout, Safety Interlock, and Viewing Window | ||||||||||||||||||
| 30 | 600V AC/600V DC | 3PST | Single (10 hp @ 240V AC) Three (30 hp @ 600V AC) | 3 | — | 15" | 7 3/4" | 3/8" | Tab | NEMA 3R | UL Listed, CSA Certified | Fed. Spec. W-S-865 | 7499K91 | 0000000 | ——— | 0 | ||
3 Circuits Controlled with Lockout, Safety Interlock, Fuse Holder, and Viewing Window | ||||||||||||||||||
| 30 | 600V AC/600V DC | 3PST | Three (20 hp @ 600V AC) | 3 | RK1, RK5, J, H | 15" | 7 3/4" | 3/8" | Tab | NEMA 3R | UL Listed, CSA Certified | Fed. Spec. W-S-865 | 7499K76 | 000000 | 7499K111 | 000000 | ||
| 30 | 600V AC/600V DC | 3PST | Three (20 hp @ 600V AC) | 4 | RK1, RK5, J, H | 15" | 7 3/4" | 3/8" | Tab | NEMA 3R | UL Listed, CSA Certified | Fed. Spec. W-S-865 | 7499K93 | 000000 | 7499K111 | 00000 | ||
| 60 | 600V AC/600V DC | 3PST | Three (50 hp @ 600V AC) | 3 | RK1, RK5, J, H | 17 1/2" | 10 1/2" | 3/8" | Tab | NEMA 3R | UL Listed, CSA Certified | Fed. Spec. W-S-865 | 7499K68 | 000000 | 7499K112 | 00000 | ||
