FA24100AB **Old Style** - 100 Amp Circuit Breaker

FA24100AB **Old Style** - 100 Amp Circuit Breaker

Looking for a dependable circuit breaker that delivers safe and effective protection for your electrical setup? The FA24100AB is built to perform in residential, commercial and light industrial settings—giving you dependable overload and short-circuit protection at 100 amps. With a rated voltage of 480 V and a two-pole, single-phase configuration, this breaker is designed to meet the demands of modern electrical systems and help maintain uninterrupted performance.

Key Features and Benefits

• Thermal-Magnetic Trip Unit: Combines long-time (thermal) and instantaneous (magnetic) protection to guard against both overloads and sudden short circuits, helping reduce the risk of fire or critical downtime.
• High Interrupting Capacity: With a breaking capacity of up to 18 kA at 480 V (and higher at 240 V), the FA24100AB withstands significant fault currents so your system stays secure under stress.
• I-Line Mounting Style: Designed for quick and straightforward plug-in installation, the I-Line format simplifies wiring and helps save time on maintenance or replacement.
• HACR Rated: Approved for use with heating, air-conditioning and refrigeration equipment, making this unit versatile for HVAC, industrial or large commercial systems.

Technical Specifications

• Rated Current: 100 A
  
• Rated Voltage: 480 V
  
• Poles: 2 Phase: 1
  
• Interrupt Rating: approx. 18 kA at 480 V and around 25 kA at 240 V according to select listings
  
• Mounting Mode: I-Line plug-in style
  
• Dimensions:
  • Height: ≈ 6.4 in
  • Width: ≈ 3 in
  • Depth: ≈ 4.13 in
• Electrical Connection: Line side I-Line connection; Load side lug terminations
  

Material Compliance and Certifications

• This breaker carries UL Listing and CSA certification for trusted performance in North America.
• It is also aligned with environmental standards thanks to Schneider Electric’s “Green Premium” designation, indicating it meets RoHS and REACh compliance for restricted substances and product sustainability.

Where It Works Best

• The FA24100AB is a solid choice for any electrical environment where you need reliable protection without over-complication. It works extremely well in large homes, commercial offices, light industrial plants or HVAC systems—especially where you’ve got two-pole circuits at 480 V and a requirement for up to 100 amps. Whether you're retrofitting an existing panel or installing into a new build, its plug-in I-Line style and high interrupt capacity make it a smart, efficient selection.