Square D MA1000S - 1000A, Disconnect Switch

Meet the Square D MA1000S 1000A Disconnect Switch — a purpose-built isolation point for demanding industrial and commercial power systems. Designed to deliver safe, reliable electrical disconnection, it stands up to daily use in busy facilities while supporting proper lockout/tagout procedures. The rugged enclosure and high-current capability make it a trusted component for long-term uptime and safe maintenance.

Key advantages that matter in the field:

• 1000 A rating handles large feeders, service entrances, and heavy equipment with a decisive, full-current disconnect.
• NEMA 1 enclosure provides indoor protection from dust and incidental contact, helping to keep the switching mechanism clean and dependable.
• Lockout/Tagout compatibility supports safe maintenance workflows and helps ensure compliance with safety protocols on site.
• Disconnection under load delivers predictable, reliable performance when it matters most, reducing risk during servicing and startup.
• Durable construction built for long-term reliability in active facilities, requiring minimal upkeep over time.
• Easy integration with existing electrical layouts and panel assemblies, making retrofits and installations straightforward for technicians.

Ideal for a range of applications — from isolating large motor feeders and serving as a main disconnect in expansive facilities, to providing a clear, safe stop point for routine maintenance in manufacturing plants and commercial spaces. The MA1000S is a robust, high-capacity solution crafted by Square D to keep your power distribution secure and your operations running smoothly. If you need a trustworthy, high-current disconnect switch that prioritizes safety and longevity, the MA1000S is engineered to deliver.