Square D - 400A, Disconnect Switch

Square D 400A Disconnect Switch — a rugged isolation device engineered for demanding industrial and commercial environments. It provides reliable on/off control and robust overcurrent protection, helping you safeguard equipment and personnel with confidence.

Key Capabilities

• 400A amperage rating— ideal for motor disconnects, panelboards, and branch circuits requiring a compact, maintainable switch.
• Compact footprint designed to fit in tight electrical rooms and distribution panels without compromising performance.
• Maintainable fusible switch option for straightforward fuse replacement and proactive maintenance, minimizing downtime.
• Durable construction and dependable contacts built to withstand demanding industrial conditions.

Ideal Uses

• Motor disconnects in manufacturing lines, conveyors, and HVAC systems where rapid isolation is essential.
• Panelboard protection within electrical distribution centers, providing a centralized point of control and safety.
• Branch circuit protection for downstream loads, enabling safe troubleshooting and service without risking upstream equipment.

Why It Matters

With a 400A rating, this disconnect switch delivers a balance of power and practicality for mid-to-large load scenarios. The compact design makes retrofits and upgrades smoother, while the maintainable fusible switch option helps keep critical systems running with minimal interruption when fuses need replacement. This is a thoughtful choice for facilities aiming to simplify electrical protection without sacrificing safety or reliability.

Installation & Maintenance Tips

• Plan for straightforward integration into existing panelboards and motor control setups to streamline wiring and layout.
• Confirm fuse compatibility and rating if selecting the fusible configuration, following your electrical design specifications.
• Adhere to lockout/tagout procedures during maintenance to ensure safe, predictable re-energization.

Designed to integrate seamlessly within Square D’s ecosystem of safety switches and protection devices, this 400A disconnect switch delivers dependable isolation, protection, and ease of maintenance for everyday industrial and commercial applications.