BQ3B090H - 90Amp Circuit Breaker

BQ3B090H - 90Amp Circuit Breaker

The Siemens BQ3B090H 90 Amp 3-Pole Circuit Breaker is designed for use in 240-volt electrical distribution systems. It features a common-trip design, opening all three poles simultaneously during overload or short-circuit conditions, helping protect connected equipment and wiring. Part of the Siemens Type BQH family, this breaker is rated for a 22kA interrupting capacity and is suitable for commercial and industrial electrical systems.

Key Features and Benefits

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

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: BQ3B090H
  
• Series: BQH
  
• Product Type: Molded Case Circuit Breaker
  
• Amp Rating: 90 Amps
  
• Number of Poles: 3
  
• Voltage Rating: 240 VAC
  
• Interrupting Rating: 22kA AIR
  
• Trip Type: Common Trip
  
• Connection Type: Bolt-On
  
• Width: 3 in.
  
• Height: 4 in.
  
• Depth: 3 in.
  
• Net Weight: 1.146 lb
  
• UPC: 783643161740
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

• UL 489 Listed
• Manufactured for low-voltage electrical distribution applications
• Classified as a molded case circuit breaker (MCCB)
• Export Classification: EAR99

Where It Works Best

• The Siemens BQ3B090H is commonly found in commercial buildings, warehouses, manufacturing facilities, schools, office buildings, retail spaces, and other three-phase electrical systems. Typical applications include panelboards, feeder circuits, branch circuits, HVAC equipment, motor loads, and general electrical distribution where a 90-amp, 3-pole breaker with a 22kA interrupting rating is required.