Disconnect › Isolators
Isolator Switches
Lockable isolation and load-break points without integrated fuses, where protection sits upstream — 1- to 4-pole, AC and DC, for maintenance isolation and motor disconnects, built to IEC 60947-3.
Poles: 1–4 poleDuty: AC / DC load-breakStandard: IEC 60947-3
Range
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4 of 4 products
| Product | Poles | Current | Category | Mounting | Datasheet |
|---|---|---|---|---|---|
| Isolator 3P 63A (AC-23) TS-ISO-63 | 3-pole | 63 A | AC-23 | DIN / panel | — |
| Isolator 4P 100A (AC-23) TS-ISO-100 | 4-pole | 100 A | AC-23 | DIN / panel | — |
| Isolator 2P 32A (AC-22) TS-ISO-32 | 2-pole | 32 A | AC-22 | DIN / panel | — |
| Isolator 3P 125A (AC-21) TS-ISO-125 | 3-pole | 125 A | AC-21 | Panel | — |
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Tenso manufactures lockable isolator switches — load-break points without integrated fuses — for maintenance isolation, motor and AC/DC disconnects where short-circuit protection sits upstream. A load-break isolator can make and break under load; a plain disconnector is for off-load isolation only, so open it after de-energising. Match the utilization category to the load (AC-23 for motors) and choose the poles for your system. If you need isolation and protection in one device, see fusible disconnect switches. Ratings are indicative; confirm against the datasheet.
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FAQ
Isolator Switches — questions buyers ask
What's the difference between an isolator and a disconnector?
Both create a safe, lockable break for isolation. A disconnector on its own may be off-load only; a load-break isolator (switch-disconnector) can also make and break current under load.
Do isolators have fuses?
No — an isolator provides isolation and switching only. Use a fusible disconnect switch if you need short-circuit protection at that point.
What is the AC-23 utilization category?
The IEC 60947-3 rating for switching motor loads. AC-21 is for resistive loads and AC-22 for mixed loads — match it to your load.