Square D | LA400F | Disconnect Switch | 400A | 600V

Meet the Square D LA400F Disconnect Switch — a purpose-built isolation solution rated for demanding electrical work. With a 400A current rating and 600V maximum voltage, this switch is designed to provide dependable equipment isolation in distribution panels, switchgear, and control installations.

Ideal for maintenance, retrofit, and replacement projects where exact specifications matter, the LA400F ensures you’re using the correct component within your Square D ecosystem. By matching the part number, you minimize the risk of mismatches that can lead to downtime or safety concerns, helping you keep projects on schedule.

Why the LA400F stands out

• Exact compatibility: The part number LA400F is your best reference for ensuring a proper fit with existing Square D gear.
• Clear electrical capacity: 400A at up to 600V provides reliable isolation for heavy-duty service and distribution applications.
• Trusted brand: Square D components are known for consistent performance in industrial environments, making this disconnect a dependable choice for long-term service.

Key specifications

• Amperage: 400A
• Voltage: 600V
• Part number: LA400F

Implementation notes and best practices

• Confirm fit and ratings before ordering to ensure seamless replacement or retrofit within your electrical system.
• Use the part number LA400F as the primary reference when checking compatibility with existing Square D equipment.
• Keep an exact part on hand for future maintenance to reduce downtime and ensure quick, accurate replacements.

Who should consider this disconnect switch?

• Electrical contractors and service technicians performing installations or replacements in commercial, industrial, or manufacturing settings.
• Facility maintenance teams responsible for reliable power isolation and equipment uptime.
• Systems integrators designing or upgrading electrical distribution where Square D components are specified.