EGS3090FFB 90Amp Circuit Breaker

EGS3090FFB - 90 Amp Circuit Breaker

When you're responsible for keeping electrical systems running safely, you don’t want to second-guess your components. The Eaton EGS3090FFB molded case circuit breaker is built for exactly that kind of reliability. Rated at 90 amps and designed with a three-pole configuration, it delivers dependable protection against overloads and short circuits in demanding commercial and industrial environments. Part of Eaton’s well-established Series G lineup, this breaker is made to handle real-world conditions without unnecessary complexity. It supports up to 600Y/347 VAC, and when a fault occurs, its high interrupting capacity steps in fast to help prevent damage to your equipment. The bolt-on terminal design gives you a secure, no-nonsense connection, while its compact size makes installation straightforward even in tighter panel spaces. In plain terms, this is the kind of breaker professionals choose when they want something that installs cleanly, performs consistently, and doesn’t become a problem later.

Key Features and Benefits

• 90 Amp Rating – Reliable protection for medium-to-heavy electrical loads
• Three-Pole Design – Covers all phases for balanced system protection
• Strong Interrupting Capacity – Handles fault conditions safely (up to 85 kAIC at 240 VAC)
• Series G Construction – A proven platform used across commercial and industrial setups
• Bolt-On Terminals – Helps ensure tight, secure, and stable connections
• Compact Form Factor – Easier to fit into existing panels and switchgear
• T186 Trip Unit – Delivers accurate and consistent tripping performance

Technical Specifications

• Catalog Number: EGS3090FFB
  
• Product Type: Molded Case Circuit Breaker (Complete Breaker)
  
• Amperage Rating: 90 A
  
• Voltage Rating: 600Y/347 VAC
  
• Frequency: 50/60 Hz
  
• Poles: 3
  
• Interrupting Ratings:
  • 85 kAIC @ 240 VAC
  • 35 kAIC @ 480 VAC
  • 22 kAIC @ 600Y/347 VAC
• Trip Type: T186
  
• Frame: EG Frame
  
• Series: Series G
  
• Terminals: Bolt-On
  
• Dimensions: 5.5" H x 3" W x 2.99" D
  
• Weight: 2.91 lbs
  

Material Compliance and Certifications

• UL Listed – Meets U.S. safety standards
• CSA Certified – Approved for Canadian use
• IEC Rated – Complies with international standards
• CE Marked – Suitable for global applications

Where It Works Best

You’ll typically find the Eaton EGS3090FFB in commercial buildings, industrial facilities, and large electrical distribution systems where consistent performance matters. It’s a solid fit for panelboards, switchgear, and three-phase systems, especially when protecting feeders, motors, or lighting circuits. If your setup demands steady protection without constant maintenance concerns, this breaker fits the role.