BQD270 - 70Amp Circuit Breaker

BQD270 - 70Amp Circuit Breaker

The Siemens BQD270 is a 70-amp, 2-pole circuit breaker used in 480VAC panelboard applications. It provides overcurrent protection for branch circuits, helping protect your conductors and connected equipment from damage caused by overloads and short circuits. The breaker uses a thermal magnetic trip unit, combining overload protection with fast response during fault conditions.

Part of the Siemens BQD series, the BQD270 is designed for your panelboard mounting and features a molded case construction with low-tab connections. Its compact footprint allows it to fit easily into many commercial and industrial electrical systems. With a 14 kAIC interrupting rating, this breaker is commonly installed in lighting panels, distribution equipment, HVAC systems, control panels, and other applications where 70-amp, two-pole protection is required.

Key Features and Benefits

• 70 Amp current rating
  
• 2-pole configuration
  
• Rated for 480/277VAC systems
  
• Thermal magnetic trip unit
  
• 14 kAIC interrupting capacity
  
• Panelboard mounting design
  
• Low-tab connection style
  
• Molded case construction
  

Technical Specifications

• Catalog Number: BQD270
  
• Manufacturer: Siemens
  
• Series: BQD
  
• Product Type: Molded Case Circuit Breaker
  
• Number of Poles: 2
  
• Current Rating: 70 Amps
  
• Voltage Rating: 480/277 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: 2 in.
  
• Height: 3 in.
  
• Depth: 4 in.
  
• Maximum Ambient Operating Temperature: 40°C
  
• Enclosure Material: Molded Case Circuit Breaker
  
• Net Weight: 1.131 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 BQD270 is commonly used in commercial buildings, educational facilities, healthcare environments, warehouses, manufacturing plants, and retail properties.