Katko UL/cUL listed sheet steel enclosed disconnect switches are designed for demanding industrial and infrastructure applications where mechanical strength and operational reliability are critical. Available in Type 1, Type 3R, Type 12 and Type 4 configurations, the robust sheet steel enclosure provides excellent protection against impact, dust, moisture and external stress, ensuring dependable operation in a wide range of 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 North American regulatory expectations where durability and compliance are essential.

Product details and documents
Technical data
Dimensional drawing
Logistical data
Downloadables
- Dimensional drawings media (d0ef0800a2b179d09ac61851b9369a45b40fafea_IsoSafe_T3_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 (3a547d77c67d61f5617637b9dd0f2f7f8136a7d8_KATKO_IsoSafe_UL_listed_selection_brochure_092024_en.pdf)
- Installation manuals (caad557cafbff2c2c447d329d02c4afb3ca31f64_KATKO_IsoSafe_T3_installation_manual_71_en.pdf)
Related accessories
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Auxiliary contact 1NO/1NC
Product typeKU1V -
Auxiliary contact 2NO/2NC
Product typeKU2V
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