BQD6240 - 40Amp Circuit Breaker

BQD6240 - 40Amp Circuit Breaker

When you need dependable protection for your electrical systems, the Siemens BQD6240 is built to deliver. Rated at 40 amps and designed for 347/600VAC applications, this 2-pole circuit breaker keeps commercial and industrial circuits safe from overloads and short circuits. Its thermal magnetic trip unit provides dual protection: the thermal element handles prolonged overloads, while the magnetic trip responds instantly to sudden high-current events.

Whether you're upgrading existing systems or outfitting a new installation, the BQD6240 provides trusted performance that electricians and facility managers rely on.

Key Features and Benefits

• 40 Amp continuous current rating
• 2-pole configuration for two-phase or dual-phase circuits
• Rated for 347/600VAC applications
• Thermal magnetic trip unit for overload and short-circuit protection
• 10 kAIC interrupting capacity
• Panelboard-mount design with low-tab connections
• Compact design to conserve panel space

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: BQD6240
  
• Series: BQD6
  
• Current Rating: 40 Amps
  
• Number of Poles: 2
  
• Voltage Rating: 347/600VAC
  
• Interrupting Capacity: 10 kAIC
  
• Frequency: 50/60 Hz
  
• Trip Type: Thermal Magnetic
  
• Mounting Style: Panelboard Mount
  
• Connection Type: Low Tab
  
• Frame Size: 100A
  
• Breaker Type: Molded Case Circuit Breaker
  
• Dimensions:
  • Width: 3 in.
  • Height: 2 in.
  • Depth: 4 in.
• Maximum Ambient Operating Temperature: 40°C
  
• Net Weight: 1.1 lb
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

• UL 489 Listed
• CSA C22.2 Certified
• RoHS Compliant
• WEEE Take-Back Obligations

Where It Works Best

• The Siemens BQD6240 is ideal for commercial and industrial panelboards protecting lighting systems, HVAC equipment, pumps, and other branch circuits.