BQ3B100H - 100Amp Circuit Breaker

BQ3B100H - 100Amp Circuit Breaker

When a three-phase electrical system calls for a 100-amp breaker with a higher interrupting capacity, the Siemens BQ3B100H is a practical solution. This 3-pole molded case circuit breaker is rated for 240V applications and features a 22kA interrupting rating, making it suitable for your installations where available fault current exceeds the limits of standard breakers.

Designed as part of the Siemens Type BQH family, the BQ3B100H uses a common-trip mechanism that opens all three poles simultaneously if an overcurrent or short-circuit condition occurs. This coordinated operation helps protect your connected equipment while supporting safe electrical distribution throughout the system.

The bolt-on mounting design provides a secure connection in compatible panelboards, and load-side lugs are included to help simplify installation. Whether it's being used to protect HVAC equipment, motor loads, machinery, feeder circuits, or general power distribution, this breaker delivers the ratings and configuration many commercial and industrial facilities depend on every day. Like other Siemens molded case circuit breakers, it's built for long-term service and designed to handle the demands of daily operation.

Key Features and Benefits

• 100 amp continuous current rating
• Three-pole common-trip operation
• Rated for 240 VAC systems
• 22kA interrupting capacity (AIR)
• Bolt-on mounting design
• Load-side lugs included
• Molded case circuit breaker construction
• Suitable for feeder and branch circuit applications
• Designed for commercial and industrial power distribution
• UL 489 Listed

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: BQ3B100H
  
• Breaker Series: BQH
  
• Product Type: Molded Case Circuit Breaker (MCCB)
  
• Amp Rating: 100 Amps
  
• Number of Poles: 3
  
• Voltage Rating: 240 VAC
  
• Interrupting Rating: 22kA AIR
  
• Trip Configuration: Common Trip
  
• Connection Type: Bolt-On
  
• Dimensions:
  • Width: 3 in.
  • Height: 4 in.
  • Depth: 3 in.
• Net Weight: 1.036 lb.
  
• UPC: 783643161757
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

• UL 489 Listed
• Designed for low-voltage electrical distribution applications
• Manufactured to Siemens product standards
• Export Classification: EAR99

Where It Works Best

• The Siemens BQ3B100H is commonly used in commercial buildings, manufacturing facilities, schools, warehouses, and other locations operating three-phase electrical systems.