HGB3B090B - 90Amp Circuit Breaker

HGB3B090B - 90Amp Circuit Breaker

If you’re trying to match an existing breaker, HGB3B090B gives you a very specific electrical and mechanical profile to work from. This 90-amp, 3-pole HGB G-frame circuit breaker is designed for compatible low-voltage panelboard applications and uses a thermal-magnetic trip unit to protect against overload and short-circuit conditions. For maintenance crews, electricians, and facility teams, the HGB3B090B is a practical choice when the job calls for this exact 90A, three-pole HGB configuration—not just a breaker with a similar amp rating.

Key Features and Benefits

• 90A, 3-pole configuration: Designed for compatible three-pole electrical applications requiring a 90-amp breaker.
• Thermal-magnetic protection: Responds to both sustained overloads and short-circuit conditions.
• HGB G-frame design: Built for low-voltage panelboard installations that use the corresponding frame configuration.
• TC1GG20 load-side lugs: Gives installers a clearly defined load-side connection setup.
• 8 AWG–1/0 AWG conductor range: Accepts copper or aluminum conductors within the specified wire sizes.
  

Technical Specifications

• Catalog Number / MFN: HGB3B090B
  
• Product Type: Low-voltage panelboard circuit breaker
  
• Frame: HGB G-Frame
  
• Rated Current: 90A
  
• Number of Poles: 3
  
• Trip Type: Thermal-magnetic
  
• Interrupting Rating at 600Y/347V: 14 kAIC
  
• Interrupting Rating at 480Y/277V: 35 kAIC
  
• Lug Configuration: Load-side lugs only
  
• Lug Type: TC1GG20
  
• Wire Range: 8 AWG–1/0 AWG
  
• Conductor Compatibility: Copper / Aluminum (Cu/Al)
  
• Dimensions (W x H x D): 3 x 5.4 x 2.8 in.
  
• Net Weight: 2.756 lb.
  
• UPC: 887621219871
  
• Country of Origin: Mexico
  
• Export Classification: ECCN EAR99 / AL N
  

Material Compliance and Certifications

The HGB3B090B is UL Listed, which gives electrical professionals a recognized certification point when checking compatibility with a particular panelboard or installation.

Where It Works Best

The HGB3B090B is best suited to compatible low-voltage panelboards and commercial or industrial electrical distribution systems that specifically call for a 90A, 3-pole HGB G-frame breaker with thermal-magnetic protection.

It is particularly useful in maintenance and replacement work where the existing equipment requires the same frame, voltage rating, interrupting capacity, lug arrangement, and conductor range.