Disconnect › Fusible
Fusible Disconnect Switches
Switch-fuse units giving isolation, on-load switching and short-circuit protection in one device, up to 400 A — for industrial feeders, motor and equipment disconnects, taking NH / HRC fuse-links.
Current: Up to 400 AFuse: NH00–NH3 / HRCStandard: IEC 60947-3 · UL 98
Range
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4 of 4 products
| Product | Rating | Fuse size | Poles | Category | Datasheet |
|---|---|---|---|---|---|
| Fusible Switch 160A (NH00) TS-FD-160 | 160 A | NH00 | 3-pole | AC-23 | — |
| Fusible Switch 250A (NH1) TS-FD-250 | 250 A | NH1 | 3-pole | AC-23 | — |
| Fusible Switch 400A (NH2) TS-FD-400 | 400 A | NH2 | 3-pole | AC-23 | — |
| Fusible Switch 250A 4P (NH1) TS-FD-250-4P | 250 A | NH1 | 4-pole | AC-23 | — |
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Tenso manufactures fusible disconnect switches that pack three jobs into one compact device: a lockable isolation point, on-load switching, and NH / HRC short-circuit protection. They suit industrial feeders, motor and equipment disconnects where you want protection at that point in the circuit rather than relying on something upstream. Match the utilization category to the load (AC-23 for motors), choose the rating and poles, and select the NH / HRC fuse-link for your protection and coordination need — we make those too. If protection sits upstream, a non-fused isolator is enough. Ratings are indicative; confirm against the datasheet.
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FAQ
Fusible Disconnect Switches — questions buyers ask
Fused or non-fused disconnect — which do I need?
Fused if you want short-circuit protection at that point in the circuit; non-fused (isolator) if protection is provided upstream and you only need isolation and switching.
Switch-fuse or fuse-switch — what's the difference?
It's the position of the fuse relative to the switching mechanism. Both are fused switch-disconnectors giving isolation, switching and short-circuit protection in one device.
What size fusible disconnect do I need?
Size it to the load current and the upstream supply — common industrial ratings run to 200 A and 400 A. Confirm against your design.