330SMI4W - 30A, Disconnect Switch

The 330SMI4W is a rugged 30A disconnect switch engineered for industrial and commercial environments where safe electrical isolation is non‑negotiable. This device delivers dependable disconnection under load, making maintenance and servicing safer and more predictable. Designed to endure demanding switching cycles and harsh conditions, the 330SMI4W provides lasting reliability in control panels, motor circuits, and other critical power applications.

Why this disconnect switch stands out

• 30A amperage rating tailored for mid‑to‑large equipment, providing a clear, decisive break in the circuit without surprises during servicing.
• Safe isolation for maintenance built to support proper lockout/tagout procedures, helping teams comply with safety standards and reduce exposure during repairs.
• Disconnection under load engineered to reliably interrupt circuits while powered, which minimizes downtime and enhances operator confidence when restarting equipment.
• Long‑term durability designed to withstand industrial environments, delivering consistent performance across years of operation.

Ideal use cases

• Control panels in manufacturing lines, where quick, safe isolation is needed during routine maintenance or fault investigation.
• Motor and driven equipment circuits requiring reliable shutoff without equipment damage or arcing concerns.
• Electrical service points in commercial facilities, enabling safe servicing of HVAC, pumps, conveyors, and other essential systems.

How it benefits your operation

• Improved safety for technicians through a clear, verifiable means to isolate power before work begins.
• Operational continuity with predictable disconnection performance, reducing unplanned downtime during maintenance windows.
• Simple integration into existing electrical infrastructure due to its straightforward disconnect switch design and compatibility with standard control circuits.

Specifications at a glance

• Amperage Rating: 30A
• Product Type: Disconnect Switch
• Model: 330SMI4W

With the 330SMI4W, you get a purpose-built solution that prioritizes safety, reliability, and durability in demanding electrical environments. It’s the practical choice for ensuring safe isolation, improving maintenance workflows, and keeping critical equipment ready when you need it.