GE QMR365 - 400 A, 600 V, 3-Pole Non-Fusible Panelboard Switch | AmpState

The GE QMR365 from AmpState is a purpose-built, non-fusible panelboard switch designed to live inside GE panelboards, delivering decisive three-phase isolation for demanding commercial and industrial environments. With a robust 400 A rating and 600 V capability, it provides a clean, reliable main disconnect path for servicing, reconfiguration, or re-arming power distribution in busy facilities.

Key specifications

• Current rating: 400 A
• Voltage rating: 600 V
• Pole configuration: 3-pole (three-phase)
• Type: Non-fusible panelboard switch (no internal fuse links)
• Compatibility: Specifically designed for GE panelboards for straightforward replacement or upgrade

Why the non-fusible design matters

Choosing a non-fusible panelboard switch like the GE QMR365 means you’re opting for a simple, robust isolation device that relies on your external overcurrent protection. Fewer internal moving parts translate to reduced maintenance and a smoother replacement workflow when upgrading or reconfiguring a GE panelboard. This makes the QMR365 an ideal main disconnect for facilities that prioritize clear power control and easy isolation without embedded fusing.

Ideal use cases

• Main disconnect and service-entry isolation in GE panelboards for commercial buildings, light manufacturing, and data centers
• Panelboard upgrades or reconfigurations requiring a high-current, non-fusible switch
• Situations needing a reliable three-phase disconnect that aligns with existing GE equipment and wiring practices

What makes this GE QMR365 unique

• GE ecosystem integration: Engineered to slot into GE panelboard assemblies with minimal modification, ensuring a seamless power control solution.
• Maintenance simplicity: Fewer internal components mean fewer potential failure points and easier servicing or replacement.
• Clear isolation point: Acts as a dedicated main-disconnect within GE panelboard configurations, simplifying electrical design and safety procedures.
• Protection strategy flexibility: Since it contains no internal fusing, your external overcurrent protection (fuses or breakers) drives system protection, allowing you to tailor protection coordination to your exact needs.

Installation and operating considerations

• Plan external protection: Ensure your overcurrent protection scheme is properly sized and coordinated with the QMR365 per your electrical codes.
• Mounting and enclosure: Verify mounting clearances and enclosure compatibility within your GE panelboard assembly.
• Safe operating procedures: Follow standard safety practices for disconnecting and re-energizing three-phase circuits.
• Maintenance checks: Regularly verify operator handle movement and mounting hardware to maintain reliable isolation.
• Diagnostics and records: Maintain a simple diagnostic log for panelboard events to aid future servicing and troubleshooting.

How it stacks up against alternatives

Compared to fusible switches, the GE QMR365 offers a straightforward, non-fusible path to shutdown with fewer internal components to maintain. It’s particularly advantageous when your protection plan relies on external fusing or breakers and you want a dedicated main-disconnect point that integrates cleanly with GE panelboards. If quick isolation, easy replacement, and seamless GE compatibility are priorities, the QMR365 stands out as a focused, dependable option.

Who should consider the GE QMR365

• Facilities deploying GE panelboards across commercial buildings, data centers, and light manufacturing lines
• Projects involving panelboard upgrades or reconfigurations where a robust, high-current, non-fusible main disconnect is required
• Operations seeking a reliable three-phase isolation point that aligns with existing GE wiring practices and components

With the GE QMR365, you gain a dependable, GE-aligned main-disconnect solution that simplifies power control and serviceability in high-current, three-phase systems—delivered through AmpState’s trusted sourcing and support.