BQD290 - 90Amp Circuit Breaker

BQD290 - 90Amp Circuit Breaker

The Siemens BQD290 is a 90-amp, 2-pole molded case circuit breaker intended for use in 480/277VAC electrical distribution systems. It provides overcurrent protection for branch circuits, helping prevent damage caused by overloads and short circuits. The breaker utilizes a thermal magnetic trip mechanism that responds to both prolonged overcurrent conditions and instantaneous fault events.

Designed for your panelboard installation, the BQD290 is part of the Siemens BQD series and features a low-tab connection style along with a molded case construction. Its 14 kAIC interrupting rating makes it suitable for a wide range of commercial and industrial applications. This breaker is frequently used in lighting distribution panels, HVAC systems, control panels, and general power distribution equipment where a 90-amp, two-pole breaker is specified.

Key Features and Benefits

• 90 Amp current rating
  
• 2-pole breaker configuration
  
• Rated for 480/277VAC systems
  
• Thermal magnetic trip unit
  
• 14 kAIC interrupting capacity
  
• Panelboard mounting design
  
• Low-tab connection type
  
• Molded case construction
  
• Provides overload and short-circuit protection
  
• Suitable for commercial and industrial installations
  

Technical Specifications

• Catalog Number: BQD290
  
• Manufacturer: Siemens
  
• Series: BQD
  
• Product Type: Molded Case Circuit Breaker
  
• Poles: 2
  
• Current Rating: 90 Amps
  
• Voltage Rating: 480/277VAC
  
• Frequency: 50/60 Hz
  
• Interrupting Capacity: 14 kAIC
  
• Trip Unit: Thermal Magnetic
  
• Mounting Style: Panelboard Mount
  
• Connection Type: Low Tab
  
• Frame Size: 100A
  
• Width: 8 in.
  
• Height: 6 in.
  
• Depth: 19 in.
  
• Maximum Ambient Operating Temperature: 40°C
  
• Net Weight: 1.179 lb.
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

• UL 489 Listed
  
• CSA C22.2 Certified
  
• RoHS Compliant
  
• WEEE Compliant
  
• REACH Information Available
  

Where It Works Best

• The Siemens BQD290 is commonly found in commercial buildings, schools, healthcare facilities, warehouses, manufacturing plants, and other facilities that utilize 480/277VAC electrical systems.