Schneider Electric QMB363TR 100A 3P 600V Safety Switch, NEMA 1, Fusible | AmpState

Schneider Electric QMB363TR is a robust safety switch engineered for reliable equipment disconnect and isolation at the point of use. This 100 A, 3-pole, 600 V fusible switch is built for indoor applications in a NEMA 1 enclosure, making it a practical, dependable choice for production lines, machinery control, and panel-fed circuits. Ideal for replacement projects and stocking spares, it helps you maintain BOM integrity by aligning with the original Schneider Electric part number.

Key specifications

• Amperage: 100 A
• Poles: 3 (3P)
• Voltage: 600 V
• Enclosure: NEMA 1 (indoor-rated)
• Fusible design: integrated fuses for overcurrent protection
• Manufacturer: Schneider Electric
• Part Number: QMB363TR

Why this safety switch stands out

• Point-of-use isolation: Quickly disconnect power to equipment for maintenance or emergency shutdowns without removing the protection from the main power feed.
• Fusible protection in a single unit: Combines disconnect functionality with built-in overcurrent protection, reducing the need for separate fuse assemblies and simplifying panel layouts.
• BOM-aligned consolidation: Using the original part number minimizes spare parts complexity and streamlines procurement during upgrades or repairs.
• Schneider Electric reliability: A trusted name in industrial controls, designed for durability and long service life in demanding environments.

Ideal use cases

• Replacement projects where the original BOM specifies QMB363TR for seamless compatibility.
• Indoor control panels and machine disconnects where safe, immediate isolation is required.
• Facilities maintenance and spare inventory planning to reduce downtime when outages occur.
• Three-phase equipment setups that demand a single, integrated safety switch with fused protection.

Installation and compatibility tips

When selecting this part, verify that your system is within a 600 V three-phase distribution and that the enclosure and mounting configurations match your panel design. Use appropriately rated fuses and ensure wiring and conductor sizes align with local electrical codes. If you’re unsure about fit or compatibility, AmpState can help confirm the match for your specific application.

Available from AmpState, the QMB363TR provides a dependable, field-ready solution for equipment disconnect and isolation. By choosing this fusible safety switch, you gain streamlined maintenance, safer shutoffs, and BOM-consistent spares that keep your operations moving smoothly.