EGB3040FFB - 40Amp Circuit Breaker

EGB3040FFB - 40 Amp Circuit Breaker

When you’re dealing with electrical systems, the last thing you want is uncertainty. The Eaton EGB3040FFB molded case circuit breaker is built to give you confidence—day in, day out. Designed for commercial and industrial applications, this 40-amp, 3-pole circuit breaker delivers dependable protection against overloads and short circuits, helping you avoid costly downtime and equipment damage. Part of Eaton’s proven Series G line, this breaker combines a compact footprint with serious performance. The T186 trip unit reacts quickly and accurately when conditions go wrong, while its strong interrupting capacity ensures it can handle fault conditions without hesitation. Whether you’re maintaining an existing system or installing new equipment, the EGB3040FFB fits in easily and performs exactly the way you expect—no surprises.

Key Features and Benefits

• Consistent 40 Amp Circuit Protection – Helps prevent overloads and short circuits before they cause damage
• Three-Pole Design for Three-Phase Systems – Ideal for commercial and industrial power distribution
• High Interrupting Capacity – Rated at 25 kAIC at 240 VAC and 18 kAIC at 480 VAC for reliable fault clearing
• Compact Size, Easy Fit – Saves space in panelboards and switchgear without sacrificing performance
• Bolt-On Terminals – Secure, stable connections that simplify installation
• T186 Trip Unit – Fast, accurate response to abnormal electrical conditions
• Proven Series G Platform – Trusted design known for long-term dependability

Technical Specifications

• Catalog Number: EGB3040FFB
  
• Product Type: Molded Case Circuit Breaker (Complete Breaker)
  
• Amperage Rating: 40 Amps
  
• Voltage Rating: 600Y/347 VAC
  
• Poles: 3
  
• Frequency: 50/60 Hz
  
• Interrupt Rating:
  • 25 kAIC @ 240 VAC
  • 18 kAIC @ 480 VAC
• Trip Type: T186
  
• Frame Type: EG Frame
  
• Series: Series G
  
• Terminals: Bolt-On
  
• Dimensions:
  • 5.5 in (H)
  • 3 in (W)
  • 2.99 in (D)
• Weight: 2.91 lbs
  

Material Compliance and Certifications

• UL Listed – Meets U.S. safety standards
• CSA Certified – Approved for use in Canada
• IEC Rated – Complies with international standards
• CE Marked – Meets European conformity requirements

These certifications give you added confidence that the breaker meets strict safety and performance expectations across multiple regions.

Where It Works Best

• The EGB3040FFB circuit breaker is a strong fit for commercial buildings, industrial facilities, and mission-critical systems where reliable protection is essential. It’s commonly used in panelboards, switchboards, and motor control centers, especially in three-phase electrical systems that require consistent, high-quality performance.