FA24040AC **Old Style** - 40 Amp Circuit Breaker

- 40 Amp
- 14k @ 480VAC; 18k @ 240VAC
- 2 Pole
Purchase Options: Refurbished
FA24040AC **Old Style** - 40 Amp Circuit Breaker Description
FA24040AC **Old Style** - 40 Amp Circuit Breaker
Keeping an existing electrical system running often comes down to finding the right replacement parts. The FA24040AC Old Style is a 40 Amp, 2-pole molded case circuit breaker made for compatible FA-frame I-Line plug-in panelboards and switchboards using an A-C phase configuration. It serves as a form, fit, and functional replacement, allowing repairs and maintenance without changing the original equipment layout.
Inside the breaker is a thermal-magnetic trip unit that responds to both prolonged overloads and sudden short circuits.
Key Features and Benefits
- 40 Amp current rating
- Two-pole molded case circuit breaker
- FA frame, Old Style construction
- Thermal-magnetic trip unit helps protect against overloads and short circuits
- I-Line plug-in mounting
- A-C phase configuration
- Interrupting rating of 18kA at 240VAC and 14kA at 480VAC
- HACR Type rated
- Suitable for 60Hz electrical systems
- Rated for operation in ambient temperatures up to 40°C
- Form, fit, and functional replacement for compatible FA-frame equipment
- Built to last for continued use in existing electrical systems
Technical Specifications
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Part Number: FA24040AC Old Style
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Frame Type: FA
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Product Type: Molded Case Circuit Breaker
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Amperage: 40 Amps
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Poles: 2
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Trip Unit: Thermal-Magnetic
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A.I.C. Rating: 18kA @ 240VAC; 14kA @ 480VAC
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Frequency: 60Hz
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Mounting Style: I-Line Plug-In
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Phase Configuration: A-C
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HACR Rated: Yes
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Ambient Temperature Rating: 40°C
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Dimensions:
- Width: 3.00"
- Height: 8.75"
- Depth: 4.38"
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Approximate Shipping Weight: 6.25 lbs.
Material Compliance and Certifications
The FA24040AC Old Style is an HACR Type molded case circuit breaker intended for use in compatible FA-frame I-Line electrical distribution equipment. Before installation, verify that the breaker's ratings, mounting style, and phase configuration match the existing equipment. Installation should always follow the manufacturer's guidelines, the National Electrical Code (NEC), and any applicable local electrical codes.
Where It Works Best
The FA24040AC Old Style is commonly used in compatible legacy electrical systems found in:
- Commercial buildings
- Industrial facilities
- Manufacturing plants
- Office buildings
- Schools and universities
- Healthcare facilities
- Warehouses and distribution centers
- I-Line panelboards
- I-Line switchboards
- HVAC and refrigeration equipment requiring an HACR-rated circuit breaker
Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. CIRCUIT BREAKER SUPERSTORE® is an independent reseller and is not an authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do not apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.
Square D® is a registered trademark of Schneider Electric. Products sold are surplus, used, or refurbished and are NOT supplied by Schneider Electric or its affiliates.
Specifications
- Width:3.0
- Height:8.75
- Depth:4.38
- Poles:2
- Amperes:40
- A.I.C. Rating & Volts:14k @ 480VAC; 18k @ 240VAC
- Type:FA
- Approx Dimensions:3.00"W x 8.75"L x 4.38"D
- Additional Notes:60Hz, 40°C, HACR Type, I-Line Style, Plug-In, "A-C" Phase, Thermal Magnetic, Molded Case Circuit Breaker
Returns are easy
You may return unused items within 30 days of delivery for a full refund.
FREE ground shipping on breaker orders over $100 and all other items with orders over $500.
Shipping charges are Prepaid and Allowed on UPS Ground orders for all other products on orders over $500.00, again only when shipping within the lower 48 continental United States, provided the product(s) can safely ship UPS Ground.
If the product cannot safely ship via UPS Ground, or is too heavy to ship UPS Ground, then the product will be shipped via freightliner at buyer's expense.
CIRCUIT BREAKER SUPERSTORE® offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).
Same Day Shipping
We strive to ship out your items within one business day.
In rare circumstances, CIRCUIT BREAKER SUPERSTORE® may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.
CIRCUIT BREAKER SUPERSTORE® provides a limited 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer).
