QMQB7036B - 600Amp Panelboard Switch

QMQB7036B - 600Amp Panelboard Switch

The QMQB7036B panelboard switch is used in electrical systems where higher amperage switching is required and reliability matters. It’s a 3-pole switch rated for 600 amps and 600 volts AC, making it suitable for many commercial and industrial applications. The bolt-in style allows it to be installed into compatible panelboard setups without major changes, which can make replacement work more straightforward.

This model uses a fusible twin-unit design and works with Class RK1 or RK5 fuses. That gives flexibility when selecting overcurrent protection based on the needs of the system. The quick-make, quick-break mechanism helps the switch open and close circuits efficiently, and the rotary handle provides simple manual operation. Lockout and tagout capability is included to support safer maintenance practices.

Key Features and Benefits

• Quick-make, quick-break switching action
• Bolt-in mounting for panelboard installations
• Accepts Class RK1 and RK5 fuses
• Manual rotary handle for regular operation
• Lockout/tagout support for maintenance safety

Technical Specifications

• Type: QMQB
• Poles: 3
• Current Rating: 600 Amps
• Voltage Rating: 600 Volts AC
• Compatible Fuse Classes: RK1, RK5
• Interrupting Capacity: 200 kAIC at 600V
• Approximate Dimensions: 22.25" W × 13.75" H × 6.25" D

Material Compliance and Certifications

• UL 98 listed
• Built for use in commercial and industrial electrical environments

Where It Works Best

• This switch is commonly used in commercial buildings, industrial facilities, and other locations where large electrical loads need to be controlled safely. It’s a practical choice for panelboard systems that require a high-capacity switch with fuse protection and a straightforward installation process. Well suited for both replacement projects and new electrical builds where dependable operation is expected.