QMQB4032B w/ Mounting Kit - 400Amp Panelboard Switch

QMQB4032B w/ Mounting Kit - 400Amp Panelboard Switch

The QMQB4032B panelboard switch is a dependable solution for managing high-capacity electrical loads in commercial and industrial environments. Rated for 400 amps at 250 volts, this 3-pole fusible panelboard switch is designed to deliver consistent performance where safety and reliability matter most. Supplied with a complete mounting kit, it allows for straightforward installation into compatible panelboard systems, helping electricians and facility managers save time while maintaining clean, professional results. Its quick-make, quick-break action provides confident control during switching operations, while the bolt-in design supports long-term stability under demanding electrical conditions.

Key Features and Benefits

• 400 Amp Power Handling – Built to manage substantial electrical loads in high-demand applications
• Quick-Make, Quick-Break Operation – Supports safer, more controlled switching during connection and disconnection
• Fusible Protection Design – Accepts Class RK1 and RK5 fuses for dependable fault protection
• Bolt-In Panelboard Mounting – Helps ensure a secure, steady fit inside panelboard assemblies
• Mounting Kit Included – Reduces installation effort and supports proper alignment within the panelboard

Technical Specifications

• Voltage Rating: 250 VAC
• Current Rating: 400 Amps
• Number of Poles: 3
• Fuse Compatibility: Class RK1 and RK5
• Dimensions: 22.25" W x 13.75" H x 6.25" D
• Mounting Style: Bolt-in panel mount with included mounting kit

Material Compliance and Certifications

• UL 98 Listed – Evaluated to meet recognized safety and performance standards for enclosed and dead-front switches

Where It Works Best

• This panelboard switch is well-suited for power distribution systems in manufacturing plants, commercial buildings, data facilities, and other locations with continuous or heavy electrical demand. Its compact footprint and bolt-in mounting style make it a practical choice for upgrades or replacements within existing panelboard configurations, while the fusible design adds an extra layer of protection against electrical faults.