BQ2B045 - 45Amp Circuit Breaker

BQ2B045 - 45Amp Circuit Breaker

The Siemens BQ2B045 is a 45 amp, 2-pole circuit breaker for your Siemens Type BQ panelboards and load centers. Rated for 120/240 VAC, the breaker trips both poles simultaneously when an overload or short circuit occurs.

A 45 amp, 2-pole breaker is commonly specified for dedicated circuits serving air conditioners, heat pumps, water heaters, pumps, compressors, and similar 240-volt equipment. The bolt-on construction mounts directly into compatible Siemens equipment, and load-side lugs are included.

Key Features and Benefits

• Siemens Type BQ Molded Case Circuit Breaker: Designed for use in compatible Siemens Type BQ panelboards and load centers.
• 45 Amp Current Rating: Suitable for circuits requiring 45 amp overcurrent protection.
• 2-Pole Common-Trip Design: Trips both poles simultaneously when an overload or short circuit occurs.
• Rated for 120/240 VAC Electrical Systems: Compatible with standard electrical distribution systems.
• 10 kAIC Interrupting Capacity: Provides branch circuit protection in residential, commercial, and light industrial applications.
• Bolt-On Mounting Configuration: Mounts directly into compatible Siemens equipment.
• Load-Side Lugs Included: Ready for wiring connection during installation.
• Branch Circuit Protection: Designed for overcurrent protection of electrical circuits.
• UL 489 Listed: Certified for branch circuit protection applications.
• Compatible with Approved Siemens Panelboards and Load Centers: Intended for installation in approved Siemens electrical distribution equipment.
  

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: BQ2B045
  
• Manufacturer Part Number (MFN): BQ2B045
  
• UPC: 783643161214
  
• Product Series: BQ
  
• Product Type: Molded Case Circuit Breaker
  
• Number of Poles: 2
  
• Current Rating: 45 Amps
  
• Voltage Rating: 120/240 VAC
  
• Interrupting Rating: 10 kAIC
  
• Trip Type: Common Trip
  
• Connection Type: Bolt-On
  
• Load-Side Lugs: Included
  
• Application: Electrical Distribution
  
• Standard: UL 489
  
• Dimensions:
  • Depth: 4 in.
  • Height: 2 in.
  • Width: 3 in.
• Net Weight: 0.3 kg
  
• Country of Origin: Mexico

Material Compliance and Certifications

• Industry Standards: The Siemens BQ2B045 is UL 489 Listed for branch circuit protection and is manufactured for low-voltage electrical distribution applications.
• UL 489 Listed: Certified for branch circuit protection applications.
• Export Classification: EAR99
• Dangerous Goods Classification: No
• WEEE Take-Back Obligation: No
• REACH Article 33 Information: Available from Manufacturer
  

Where It Works Best

• The BQ2B045 is used in residential panels, commercial buildings, workshops, service facilities, and light industrial applications. It is often installed on HVAC equipment, electric water heaters, pumps, compressors, and other dedicated 120/240-volt circuits that require a 45 amp, 2-pole breaker.