QMQB4032 w/ Mounting Kit - 400Amp Panelboard Switch

QMQB4032 w/ Mounting Kit - 400Amp Panelboard Switch

The Federal Pacific QMQB4032 is a 400 amp panelboard switch made for larger electrical systems that need dependable shutoff and protection. It’s a three-pole, fusible switch that bolts into the panelboard and comes with a mounting kit to help keep everything lined up and secure once it’s installed. This is the type of switch you’ll usually see in commercial buildings or industrial settings where equipment runs all day and power loads are not light.

Because it uses standard Class RK1 or RK5 fuses, the QMQB4032 gives electricians some flexibility when setting up overcurrent protection. The layout is straightforward, and the switch is built to handle regular operation without fuss. For maintenance crews and contractors, that simplicity matters.

Key Features and Benefits

• Rated for 400 amps, suitable for higher-load circuits
• Three-pole configuration for three-phase power systems
• Fusible design that works with Class RK1 and RK5 fuses
• Bolt-in style for use in compatible panelboards
• Mounting kit included to help with proper fit and stability
• Designed for commercial and industrial use, not light-duty applications

Technical Specifications

• Model: QMQB4032
• Amperage: 400 A
• Voltage: 250 V AC
• Poles: 3
• Fuse Class: RK1, RK5
• Installation: Bolt-in, mounting kit included
• Size: Approx. 22.25" W × 13.75" H × 6.25" D

Material Compliance and Certifications

This panelboard switch is UL 98 listed, meeting established safety standards for this type of electrical equipment. Materials and construction are intended to hold up in demanding environments where reliability is expected, not optional.

Where It Works Best

The QMQB4032 is commonly used in manufacturing facilities, commercial buildings, data centers, and similar locations that require controlled power distribution at higher amperage levels. It’s a practical choice when a fusible panelboard switch is preferred and space inside the panelboard needs to stay organized and accessible.