UL 98 Fused Disconnect Switches


UL 98 Fused Rotary Disconnect Switches—30 to 800A

Bussmann series UL 98 and UL 489 fused disconnect switches “break” and “make” power circuits ON and OFF load.

The switches employ double break contacts per pole that help ensure complete isolation of the fuse when the switch is in the "OFF" position.


  • Make and break power under load
  • Double break by pole
  • DIN-rail or panel mount (30-100A)
  • Up to 200kA Short-Circuit Current Rating (SCCR)
  • Finger-safe covers
  • Compact footprints available
  • Defeatable handles automatically re-latch when the panel door is closed
  • Most disconnect switches are front, right side, flange or direct handle operable
  • NFPA 79 compliant handle kits

Product profile no. 10048

Product line overview video

Full line catalog no. 1007, Section 11, Disconnect Switches

CAD drawings (see DOWNLOADS AND RESOURCES tab below)

Installation instructions (see DOWNLOADS AND RESOURCES tab below)

Frequently Asked Questions (FAQs) no. 10075

Volts • 600Vac
• 250Vdc (select models)
Amps 30-800A
Agency Information • UL 98, Guide WHTY, File E155130
• UL 489, Guide WJAZ, File E359801
• CSA 22.2 No. 4, File 257020
• Conforms with IEC 60947-3
• NFPA 79 (2002 Edition)
Switch Dependent
• Direct Mount
• Selector
• Front Pistol
• NFPA Through Door
• Flange Handle/Shaft Operated
• Flange Handle/Cable Operated
Accessories • Auxiliary Contacts
• Terminal Shrouds
• Terminal Lugs