BQ3B020H - 20Amp Circuit Breaker

BQ3B020H - 20Amp Circuit Breaker

Looking for a reliable solution to protect your three-phase circuits? The Siemens BQ3B020H is a 20 amp, 3-pole molded case circuit breaker designed for straightforward branch circuit protection in commercial, industrial, and electrical distribution systems. This common-trip breaker ensures all three poles disconnect at the same time during an overload or short circuit, keeping your equipment and electrical network safe. Rated for 240VAC and a 22kA interrupting capacity (22kAIC), it’s built to handle higher fault currents when needed. Its bolt-on design offers a secure fit in compatible Siemens panelboards, and the included load-side lugs make wiring simple. Ideal for motor circuits, HVAC systems, control panels, and other critical 240V equipment, the BQ3B020H fits legacy systems while maintaining dependable operation.

Key Features and Benefits

• 20 Amp, 3-pole Type BQH breaker for three-phase circuits
• Common-trip design disconnects all poles simultaneously
• Rated for 240VAC electrical systems
• 22 kA interrupting capacity (22kAIC)
• Bolt-on mounting for secure installation
• Load-side lugs included for easier wiring
• Designed for branch circuit protection in commercial and industrial settings
• Genuine Siemens circuit protection
  

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: BQ3B020H
  
• Number of Poles: 3
  
• Voltage Rating: 240 VAC
  
• Interrupting Rating: 22 kAIC
  
• Trip Type: Common Trip
  
• Mounting Type: Bolt-On
  
• Load-Side Lugs: Included
  
• Dimensions: 3 in. W x 4 in. D x 3 in. H
  
• Net Weight: 1.102 lb.
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

• UL 489 Listed
• Built to Siemens standards for low-voltage electrical distribution
  

Where It Works Best

• The BQ3B020H is commonly installed in commercial buildings, manufacturing facilities, warehouses, schools, healthcare facilities, and other environments that require reliable three-phase circuit protection.