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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Rating
Poles

4 of 4 products

Product RatingFuse sizePolesCategory Datasheet
Fusible Switch 160A (NH00) TS-FD-160 160 ANH003-poleAC-23
Fusible Switch 250A (NH1) TS-FD-250 250 ANH13-poleAC-23
Fusible Switch 400A (NH2) TS-FD-400 400 ANH23-poleAC-23
Fusible Switch 250A 4P (NH1) TS-FD-250-4P 250 ANH14-poleAC-23

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.