Westinghouse | FA3100 | Circuit Breaker | 100A | 3-Pole | 600V

Meet the Westinghouse FA3100 Circuit Breaker — a purpose-built protection solution for three-phase power systems. With a 100A rating and a 3-Pole configuration, this device is designed to safeguard equipment and maintain service continuity in environments up to 600V. Built for maintenance, retrofit, and replacement projects, the FA3100 delivers reliable overcurrent protection where exact compatibility matters.

Key Specifications

• Amperage: 100A
• Poles: 3-Pole
• Voltage: 600V
• Part number: FA3100

Why this FA3100 stands out

What sets the Westinghouse FA3100 apart is its precise alignment with three-phase, 600V electrical systems. This isn’t a generic add-on breaker; it’s a tailored component designed to slot into compatible panels and frames without modification. The 3-pole design provides balanced protection across all three phases, helping prevent uneven loads and voltage spikes from impacting connected equipment.

Who is it for

• Electricians performing panel retrofits or upgrades in commercial and light-industrial settings
• Maintenance teams replacing aging or failed breakers that require the FA3100’s exact specifications
• Facilities managers planning system expansions that operate on three-phase power up to 600V

Usage scenarios and practical benefits

• Upgrading legacy panels to support modern three‑phase equipment while preserving electrical protection standards
• Replacing a worn or failed breaker in systems designed around a 100A, 3‑pole, 600V configuration
• Conducting maintenance with a clearly defined part reference (the FA3100) to match existing installations and avoid compatibility issues

Installation and compatibility notes

Before ordering, confirm fit and ratings for your service panel. The part number is the most reliable reference for compatibility, so cross-check FA3100 against your current breaker model, amperage, pole arrangement, and system voltage. This careful verification helps ensure smooth replacements and uninterrupted protection for your three-phase electrical circuits.

What you gain with Westinghouse protection

• Reliable, field-proven protection aligned with three-phase 600V systems
• Clear identification and traceability through the FA3100 part number for efficient sourcing
• Focused, practical applicability for maintenance, retrofit, and replacement workflows