FA24040AB **Old Style** - 40 Amp Circuit Breaker

FA24040AB **Old Style** - 40 Amp Circuit Breaker

Engineered for dependable circuit protection, the Schneider Electric FA24040AB circuit breaker brings high performance and ease of installation to residential, commercial and light industrial panel-board systems. Rated 40 amps and 480 volts, this 2-pole, single-phase I-Line breaker delivers thermal-magnetic protection with a generous interrupting capacity—making it an outstanding choice whenever you need a compact yet capable solution to protect critical wiring feeds. Whether you’re upgrading an HVAC line, expanding a panelboard, or retrofitting a system for safety and compliance, this breaker gives you the confidence of Schneider Electric quality.

Key Features and Benefits

• Thermal-magnetic trip unit: Gives you both long-time (overload) and instantaneous (short-circuit) protection—helping reduce the risk of nuisance trips while safeguarding the circuit.
• I-Line mounting style: Enables fast, plug-in installation directly into compatible I-Line panelbus systems, reducing labor and outage time.
• High interrupting rating (code “A”): Handles substantially higher fault currents than standard devices—providing better protection for your panel and wiring.
• Compact F-frame design: 6.4″ H × 3″ W × 4.13″ D fits easily in tight panel spaces without sacrificing performance.
• Single-phase, 2-pole configuration: Supports AB-phase connection, ideal for general-purpose mains and branch feeders.

Technical Specifications

• Rated current: 40 A (line side)
• Rated voltage: 480 V AC, also supports 250 V DC applications
• Number of poles: 2 (single-phase)
• Trip unit technology: Thermal-magnetic
• Interrupting rating:
  • 18 kA at 480 V AC
  • 25 kA at 240 V AC
  • 10 kA at 250 V DC
• Magnetic hold current: 400 A; magnetic trip current: 850 A
• Mounting mode: I-Line plug-in style
• Connection type: Line-side I-Line connection / load-side lugs (Cu 14-1/0 AWG, Al 12-1/0 AWG)
• Dimensions: 6.4″ height × 3″ width × 4.13″ depth
• Certifications/standards: UL listed, CSA certified

Material Compliance and Certifications

• Green Premium designation: Indicates compliance with RoHS and REACh environmental standards and transparency on lifecycle impact.
• UL and CSA compliant: Meets key safety and performance benchmarks.

Where It Works Best

• HVAC feeders or sub-panel circuits in commercial buildings.
• Panelboard upgrades or expansions in manufacturing or light-industrial facilities.
• Single-phase services or branch circuits where AB-phase 2-pole protection is needed.
• Applications demanding a dependable thermal-magnetic breaker with heightened interrupting capacity and easier installation.