BQ2B040H - 40Amp Circuit Breaker

BQ2B040H - 40Amp Circuit Breaker

The Siemens BQ2B040H is a 40 amp, 2-pole circuit breaker designed for your compatible Siemens Type BQH load centers and panelboards. Rated for 120/240 VAC, it uses a common-trip design that disconnects both poles during an overload or short-circuit condition.

With a 22 kAIC interrupting rating, the BQ2B040H is often used in applications where available fault current is higher than the capacity of standard branch breakers. The bolt-on connection provides a secure fit within the panel, and load-side lugs are included.

Key Features and Benefits

• Siemens Type BQH Circuit Breaker: Designed for use in compatible Siemens Type BQH load centers and panelboards.
• 40 Amp Current Rating: Suitable for branch circuits requiring 40 amp overcurrent protection.
• 2-Pole Common-Trip Design: Disconnects both poles during an overload or short-circuit condition.
• Rated for 120/240 VAC Systems: Compatible with standard electrical distribution systems.
• 22 kAIC Interrupting Capacity: Suitable for applications where available fault current is higher than the capacity of standard branch breakers.
• Bolt-On Mounting Configuration: Provides a secure fit within the panel.
• Load-Side Lugs Included: Ready for wiring connection during installation.
• Thermal Magnetic Protection: Provides protection against overloads and short circuits.
• Designed for Branch Circuit Applications: Suitable for residential, commercial, and light industrial electrical systems.
• UL 489 Listed: Certified for branch circuit protection applications.
  

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: BQ2B040H
  
• UPC: 783643161610
  
• Product Series: BQH
  
• Product Type: Molded Case Circuit Breaker
  
• Number of Poles: 2
  
• Current Rating: 40 Amps
  
• Voltage Rating: 120/240 VAC
  
• Interrupting Rating: 22 kAIC
  
• Trip Configuration: Common Trip
  
• Connection Type: Bolt-On
  
• Load-Side Lugs: Included
  
• Application: Electrical Distribution
  
• Standard: UL 489
  
• Dimensions:
  • Depth: 3 in.
  • Height: 4 in.
  • Width: 2 in.
• Net Weight: 0.27 kg
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

• Industry Standards: The Siemens BQ2B040H is manufactured for low-voltage electrical distribution applications and meets UL 489 requirements for molded case circuit breakers.
• UL 489 Listed: Certified for branch circuit protection applications.
• Export Classification: EAR99
• Dangerous Goods Classification: No
• WEEE Take-Back Obligations: No
• REACH Information: Available from Manufacturer
  

Where It Works Best

• The Siemens BQ2B040H is used in residential, commercial, and light industrial electrical systems. It is commonly found on HVAC equipment, water heaters, compressors, pumps, and other dedicated 240-volt circuits where a 40 amp, 2-pole breaker with a 22 kAIC interrupting rating is specified.