FC34100 - 100 Amp Circuit Breaker

FC34100 - 100 Amp Circuit Breaker

Designed for demanding industrial electrical systems, the FC34100 by Square D (a brand of Schneider Electric) is a high-performance thermal-magnetic molded-case circuit breaker engineered to safeguard three-phase power installations with precision and durability. With a 100-ampere rating across three poles, it gives you dependable protection against both sustained overloads and sudden short-circuit conditions — ensuring your panels and busway plug-in units stay safely operational. Its interrupting ratings of 65 kA at 480 VAC and 100 kA at 240 VAC provide substantial fault-clearing capability, making this breaker an excellent fit for environments where electrical faults can arise without warning. The molded case helps protect the internal mechanisms from environmental factors, while its compatibility with I-Line panelboards and HACR-type loads gives you installation flexibility. In short: for an industrial setup where equipment uptime is critical, the FC34100 delivers serious protection and performance.

Key Features and Benefits

• Exceptional interrupting capacity: Up to 65 kA at 480 VAC and 100 kA at 240 VAC — advanced protection against high-fault currents.
• Dual thermal and magnetic tripping mechanisms: Responds to long-term overcurrents (thermal) and instant short-circuit events (magnetic) for more complete system coverage.
• Molded-case construction: Built to handle industrial-grade conditions with fewer worries about degradation or failure.
• Versatile use case: Compatible with I-Line panelboards and rated for HACR (heating, air-conditioning and refrigeration) loads — useful across multiple installation types.
• Simplified service life: High reliability and rugged design reduce downtime and maintenance overhead in challenging installations.

Technical Specifications

• Poles: 3
  
• Amperage rating: 100 A
  
• Interrupting rating:
  • 65 kA at 480 VAC
  • 100 kA at 240 VAC
• Frame type: FC
  
• Frequency: 60 Hz
  
• Operating temperature: up to 40 °C
  
• Dimensions:
  • Width: 4.50″
  • Length: 8.75″
  • Depth: 4.38″
• Ship weight: approx. 7.50 lbs
  

Material Compliance and Certifications

• UL Listed: Ensures the breaker meets well-defined safety and performance standards under industrial electrical loads.
• RoHS Compliant: Constructed with materials that reduce environmental impact by minimizing hazardous substances — supporting sustainability goals.

Where It Works Best

• This circuit breaker is an ideal choice for heavy-duty industrial electrical systems where reliability, safety, and fault tolerance matter most. Whether you’re outfitting switchboards, panelboards, motor control centers or plug-in busway units, the FC34100 is designed to perform under stress. Its high interrupting ratings mean it can handle the most extreme fault-current scenarios you’re likely to face in modern industrial facilities, commercial HVAC systems or mission-critical power distribution environments. If you need a circuit breaker that protects major equipment, supports continuous operations and integrates smoothly into I-Line panelboard setups, this is a smart selection.