FA34090 - 90 Amp Circuit Breaker

FA34090 - 90 Amp Circuit Breaker

The FA34090 90 Amp Circuit Breaker delivers reliable three-phase electrical protection for demanding commercial and industrial systems. Engineered to support a line-rated current of 90 A, it features a thermal-magnetic trip unit designed for rapid response to overloads or short-circuits. With its three-pole configuration and I-Line mounting, this breaker can be seamlessly integrated into existing electrical panels and switchboards, helping protect your equipment and facility with minimal disruption. It’s ideal for engineers and facilities managers who want a high-capacity breaker with precise specifications, trusted certifications, and efficient installation.

Key Features and Benefits

• High interrupting capacity: Withstanding up to 18 kA at 480 V AC and 25 kA at 240 V AC, the FA34090 offers excellent protection in high‐fault conditions, giving you peace of mind when operational demands surge.
• Thermal-magnetic trip unit: Combines time-delayed thermal protection for overloads with instantaneous magnetic tripping for short circuits, offering enhanced safety for your equipment and personnel.
• Three-pole design: Ensures complete coverage of three-phase power systems, providing balanced protection across all phases and supporting high-current loads with stability.
• I-Line mounting: Facilitates quick, clean installation into compatible panels; the line side uses an I-Line connection, and the load side uses a lug connection, supporting efficient integration and maintenance.
• Compact footprint: Measuring 6.4 in (162.6 mm) high × 4.5 in (114.3 mm) wide × 4.13 in (104.9 mm) deep, this breaker makes clever use of panel space while delivering full performance.

Technical Specifications

• Trip unit technology: Thermal-magnetic
  
• Line rated current: 90 A
  
• Number of poles: 3P
  
• Mounting mode: I-Line
  
• Magnetic hold current: 900 A
  
• Magnetic tripping current: 1,700 A
  
• Electrical connection: Lug connections on load side; I-Line connection on line side
  
• Dimensions:
  • Height: 6.4 in (162.6 mm)
  • Width: 4.5 in (114.3 mm)
  • Depth: 4.13 in (104.9 mm)

Material Compliance and Certifications

• Certified: UL Listed and CSA approved
• RoHS / REACh: Fully compliant
• Sustainability status: Identified as a Green Premium® product, aligning with modern environmental and regulatory standards

Where It Works Best

• The FA34090 90 Amp Circuit Breaker excels in settings where dependable three-phase protection is essential. It is well-suited for industrial facilities, manufacturing plants, commercial buildings, data centres, or any system requiring rigorous electrical safety standards. Its I-Line mounting and compact size make it ideal for retrofits or upgrades in existing panels. At the same time, its high interrupting capacity ensures that fault conditions are handled safely and without interruption. If your application demands a circuit breaker that blends high performance, trusted certification, and installation flexibility, the FA34090 is a strong choice.