Katko UL/cUL listed aluminium enclosed disconnect switches are designed for demanding industrial and commercial applications where safety, compliance and reliable disconnection are essential. Featuring a Type 4 aluminium enclosure, they provide strong mechanical protection, good corrosion resistance and efficient heat dissipation, ensuring dependable operation in both indoor and outdoor environments.
The switches support across-the-line motor starting up to 75 HP at 600 V and are suitable for a wide range of motor and load disconnect applications. Certified according to UL and CSA requirements and compliant with UL 60947-4-1A, they meet the expectations of North American installations where performance and regulatory compliance are critical. Developed using Katko’s application-driven engineering approach, these disconnect switches deliver long-term reliability and safe electrical distribution wherever durability and proven standards matter.

Product details and documents
Technical data
Dimensional drawing
Logistical data
Downloadables
- Dimensional drawings media (546482753714541f21cf08cf920f10215708a73f_IsoSafe_A2_Dim.png)
- Brochures (6379e76fa5ee33ff60767c9781ca3ebaada6c217_KATKO_IsoSafe_catalogue_102024_en.pdf)
- Brochures (88bc9d1eaaa50e840fe66815236a2d4c16fce617_KATKO_IsoSafe_catalogue_082022_fi.pdf)
- Brochures (86a395c9341799e90f45174a6e4861db77624a97_KATKO_IsoSafe_catalogue_012025_pl.pdf)
- Brochures (c8ba4f5b3cfe2b43b7c1dccc032ff74c092d2534_KATKO_IsoSafe_ISF_UL_listed_brochure_092024_en.pdf)
- Installation manuals (af1ce9a9f312ae0c875502038615f9b248cba3a2_KATKO_IsoSafe_A2_installation_manual_43.pdf)
Related accessories
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Auxiliary contact 1NO
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Auxiliary contact 1NC
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Front plate for 4P switches
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Frontplate with auxiliary contacts 1NO+1NC
Product typeFP40KU4P1OC
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