35-402 - 400A, Disconnect Switch

The 35-402 400A Disconnect Switch is engineered for rugged, reliable electrical isolation in demanding industrial and commercial environments. Built to perform under load, it provides a dependable, verifiable disconnection that helps keep maintenance workflows safe and efficient.

Why the 35-402 stands out

• 400A amperage rating delivers robust capacity for heavy-duty service and equipment isolation, reducing the need for frequent component swaps.
• Safe isolation under load ensures a reliable disconnect when maintenance or servicing is required, minimizing downtime and enhancing operational safety.
• Lockout/Tagout readiness engineered to integrate with standard lockout/tagout procedures, helping teams follow proper safety protocols with confidence.
• Long-term durability designed to withstand daily industrial use and challenging environments, delivering consistent performance over time.

Ideal use cases

Perfect for facilities and applications where a dedicated service disconnect is essential, the 35-402 is well-suited for:

• Power distribution panels in manufacturing floors and process lines
• Motor control centers and critical equipment where controlled isolation is required
• Commercial buildings’ service entrances and large electrical rooms
• Maintenance shutdowns and electrical system upgrades that demand reliable load interruption

What problems it solves

• Eliminates ambiguity during maintenance by providing a clear, verifiable disconnect point
• Reduces exposure to energized circuits through compliant lockout/tagout compatibility
• Minimizes unplanned downtime by ensuring dependable disconnection even when circuits are under load

How it compares to typical disconnect hardware

Unlike lighter-duty options, the 35-402 is purpose-built for industrial and commercial environments where a robust, load-capable, and lockout-ready disconnect is non-negotiable. Its combination of high amperage capacity, reliable disconnection under load, and ongoing durability sets it apart from generic switches that may compromise safety or longevity in demanding settings.

Specifications

• Amperage Rating: 400A
• Product Type: Disconnect Switch
• Model: 35-402

Practical tips for optimal use

• Pair the 35-402 with a documented lockout/tagout procedure to maximize maintenance safety and compliance.
• Schedule routine inspections of the disconnect switch mounting, contacts, and enclosure to preserve reliability over time.
• Train electrical staff on confirming a complete disconnect before servicing, and verify the absence of voltage using proper testing methods.