Square D FA34100 — 100A 3-Pole 480V I-Line Plug-In Molded Case Circuit Breaker (MCCB)

The Square D FA34100 is a 100-amp, 3-pole, 480V thermal magnetic molded case circuit breaker (MCCB) with I-Line Plug-In mounting. Part of Schneider Electric's FA frame series, this breaker is engineered for dependable three-phase overcurrent protection in I-Line panelboard systems operating at up to 480VAC.

Key Specifications

• Part Number: FA34100
• Brand: Square D / Schneider Electric
• Amperage: 100A
• Poles: 3-Pole
• Voltage Rating: 480VAC
• Frame: FA / F-Frame
• Mounting: I-Line Plug-In
• Trip Type: Thermal Magnetic
• Standards: UL Listed, CSA Certified

Features & Benefits

• I-Line Plug-In mounting for quick, tool-free installation in Square D I-Line panelboards
• Thermal magnetic trip mechanism provides reliable overload and short-circuit protection
• 3-pole design protects all three phases simultaneously at 480VAC
• Compact F-frame for use in high-density I-Line panel configurations
• Compatible with Square D NF and I-Line switchboard systems

Common Applications

The FA34100 is used as a branch or feeder breaker in commercial buildings, industrial plants, and manufacturing facilities with Square D I-Line panelboards requiring 100A three-phase protection at 480V.