Square D | FAF34100 | Circuit Breaker | 100A | 3-Pole | 480V

Meet the Square D FAF34100 circuit breaker — a precise, OEM-referenced solution for demanding 480V three‑phase electrical systems. Engineered for reliability in maintenance, retrofit, and replacement scenarios, this device ensures the protection you need without guesswork on compatibility.

Key specifications

• Amperage: 100A
• Pole configuration: 3-Pole
• Voltage rating: 480V
• Part reference: FAF34100
• Best for: maintenance, retrofit, and replacement projects requiring exact specifications
• Compatibility note: Confirm fit and ratings before ordering; the part number FAF34100 is the most reliable reference for compatibility

Why this Square D breaker is the right choice

• Exact spec matching: With 100A capacity, 3-pole configuration, and a 480V rating, this breaker is designed to drop into compatible Square D panels and switchgear without overhauling existing protection schemes.
• OEM-referenced reliability: As an official Square D part, it maintains the industrial-grade durability and trip characteristics you expect for critical power protection in commercial and light industrial environments.
• Streamlined maintenance and replacements: When upgrading or restoring a 3-phase system, using the FAF34100 minimizes compatibility questions and helps keep downtime to a minimum.
• Clear compatibility guidance: The part number is the best reference for ensuring you’re selecting the exact device your panel requires, reducing the risk of mismatched ratings or pole configurations.

Ideal use cases

This breaker is well-suited for scenarios such as:

• Upgrading or replacing aging protection in 480V, 3-phase equipment
• Retrofit projects where existing panels call for a 3-pole, 100A protective device
• Maintenance cycles that require a direct OEM replacement to preserve warranty and performance characteristics
• Industrial or commercial circuits where reliable, consistent interruption protection is essential for personnel safety and equipment integrity

Practical guidance for installation and verification

Before placing an order, verify the panel’s data sheet or catalog codes to ensure a seamless fit. The FAF34100 is positioned as the most reliable reference for compatibility, helping you avoid mismatches that could lead to unnecessary downtime or replacement delays.

What to expect in use

Once installed, this 100A, 3-Pole, 480V circuit breaker provides robust protection for three-phase circuits, enabling controlled shutdowns and fault isolation in the event of overloads or short circuits. Its OEM design supports consistent performance over time, making it a dependable component in service, retrofit, and ongoing maintenance schedules.

Who benefits most

• Electrical contractors performing panel upgrades or retrofits in industrial facilities
• Maintenance teams responsible for keeping 480V, three‑phase systems compliant and operational
• Facility engineers seeking precise, OEM-referenced protection devices to minimize compatibility risk

Bottom line: The Square D FAF34100 circuit breaker is a purpose-built, OEM-grade solution for 100A, 3-pole protection in 480V systems. Its value lies in exact compatibility, reliable protection performance, and a clear reference point for sourcing the right replacement part—perfect for maintenance, retrofit, and replacement projects where precision matters.