Square D GS1-MU3 - 200A, 3-Pole, Disconnect Switch

The Square D GS1-MU3 200A 3-Pole Disconnect Switch is engineered to deliver dependable electrical isolation in demanding industrial and commercial environments. Designed to support proper lockout/tagout procedures, it provides a safe, controlled disconnect under load, helping maintenance teams work confidently and stay compliant.

• 200A rating handles mid-to-large electrical circuits with steady performance and clear, decisive isolation when needed.
• 3-Pole configuration cleanly interrupts all three phases in three-phase power systems, simplifying protection and servicing without partial disconnections.
• Reliable load disruption engineered to disconnect under operating conditions, reducing the risk of arcing and uncontrolled power during maintenance.
• Lockout/Tagout readiness compatibility supports standard safety protocols, enabling durable, compliant shutdowns for routine servicing and fault isolation.
• Industrial-grade durability built for long-term use in challenging environments, delivering consistent performance across many cycles.

The GS1-MU3 is ideal for facilities that rely on three-phase power and require a robust, code-conscious method of isolation. It’s a practical choice for service disconnects on motors, switchgear, or other heavy equipment where safe maintenance and quick, reliable shutdowns matter most.

Key questions this product answers for professionals: - How can I safely isolate a live circuit during maintenance without risking partial power or arcing? The 3-pole design ensures complete phase interruption, while the disconnect switch format provides a clear, mechanical separation.

Compared to simpler or smaller disconnects, the Square D GS1-MU3 offers a higher-amperage solution with full three-phase isolation, helping facilities minimize downtime and improve maintenance efficiency. Its compatibility with standard safety practices makes it a straightforward upgrade for teams prioritizing safety, reliability, and long-term operational readiness.

Specifications at a glance

• Amperage Rating: 200A
• Number of Poles: 3-Pole
• Product Type: Disconnect Switch
• Brand: Square D
• Model: GS1-MU3

Invest in the Square D GS1-MU3 today to empower safe, efficient maintenance and dependable electrical isolation across your three-phase systems.