QMB3660 - 600Amp Panelboard Switch

QMB3660 - 600Amp Panelboard Switch

The Square D QMB3660 Panelboard Switch is a high-capacity, fusible disconnect switch engineered by Schneider Electric for demanding industrial and commercial electrical systems. This versatile, bolt-in type switch provides reliable overcurrent and short-circuit protection with a design that ensures safety, durability, and ease of maintenance. Rated for 600 amperes and 600 volts AC, the QMB3660 is built to handle substantial electrical loads while maintaining industry-leading performance.

Key Features and Benefits

• Visible Blade Design: Ensures a clear view of switch status for enhanced operator safety.
• Compact Bolt-In Type: Facilitates easy installation and removal in panelboards, reducing downtime during maintenance.
• Wide Fuse Compatibility: Accepts Class RK1 and RK5 fuses, as well as Class H, R, J, L, and 600V Class T fuses for diverse application needs.
• Rugged Construction: Designed with glass-reinforced polyester bus supports and extruded bus bars for mechanical strength and longevity.
  

Technical Specifications

• Voltage Rating: 600V AC maximum
  
• Current Rating: 600 amperes
  
• Number of Poles: 3
  
• Fuse Type: Class RK1 & RK5 compatibility
  
• Series: 1 through 4 compatibility
  
• Dimensions: 19.00"L x 15.00"H x 10.50"D

Material Compliance and Certifications

• UL Listed: Conforms to UL 50 and UL 67 safety standards
• CSA Certified: Meets CSA C22.2 No. 29-1989 requirements for panelboards
  

Suitability

• This single-unit, fusible panelboard switch is ideal for applications requiring a robust and reliable solution for power distribution and protection. Its compact, bolt-in design makes it a perfect fit for service entrance equipment in industrial plants, commercial buildings, and other facilities demanding high interrupting capacity and operational reliability.
  

Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. All trademarks and registered trademarks are the property of their respective owners.