BQD240 - 40Amp Circuit Breaker

BQD240 - 40Amp Circuit Breaker

The Siemens BQD240 is a 40-amp, 2-pole circuit breaker used in 480VAC electrical systems. It's commonly installed in panelboards, branch circuits, lighting panels, and distribution equipment where overcurrent protection is required.

Part of the Siemens BQD family, the BQD240 features a molded case design and panelboard-mount configuration. Its compact size makes it suitable for a wide range of commercial and industrial installations, while low-tab connections help you simplify wiring. With a 14 kAIC interrupting rating, the breaker is frequently used in facilities where reliable circuit protection is needed as part of normal day-to-day operation.

Key Features and Benefits

• 40 Amp current rating
  
• 2-pole configuration
  
• Rated for 480VAC systems
  
• Thermal magnetic trip unit
  
• 14 kAIC interrupting capacity
  
• Panelboard mounting design
  
• Low-tab connection style
  
• Molded case construction
  
• Helps protect circuits from overloads and short circuits
  
• Suitable for commercial and industrial applications
  

Technical Specifications

• Catalog Number: BQD240
  
• Manufacturer: Siemens
  
• Series: BQD
  
• Product Type: Molded Case Circuit Breaker
  
• Number of Poles: 2
  
• Current Rating: 40 Amps
  
• Voltage Rating: 480 VAC
  
• Frequency: 50/60 Hz
  
• Interrupting Rating: 14 kAIC
  
• Trip Unit Type: Thermal Magnetic
  
• Mounting Style: Panelboard Mount
  
• Connection Type: Low Tab
  
• Frame Size: 100A
  
• Width: 3 in.
  
• Height: 2 in.
  
• Depth: 4 in.
  
• Maximum Ambient Operating Temperature: 40°C
  
• Enclosure Material: Molded Case Circuit Breaker
  
• Net Weight: 1.1 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 BQD240 is commonly installed in commercial buildings, schools, healthcare facilities, warehouses, manufacturing plants, and retail properties. Typical applications include panelboards, branch circuits, lighting systems, HVAC equipment, control panels, and general power distribution systems requiring 40-amp, 2-pole protection on a 480VAC electrical system.