ISF 440UL YR A2

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.