WESTINGHOUSE
LA3400F - 400Amp Max. *Frame Only*
LA3400F - 400Amp Max. *Frame Only*
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LA3400F - 400Amp Max. *Frame Only*
When you're replacing a molded case circuit breaker frame, matching the existing electrical equipment is an important part of keeping the system configuration consistent. The LA3400F thermal magnetic molded case circuit breaker frame is a 400 Amp, 3-pole frame-only breaker assembly designed for applications where the correct frame style, amperage rating, and interrupting capacity are required. For electricians, contractors, and maintenance teams, selecting the proper replacement frame helps maintain the original equipment arrangement without unnecessary system changes.
Key Features and Benefits
- 400 Amp thermal magnetic molded case circuit breaker frame
- Three-pole configuration for three-phase electrical systems
- TFK frame design
- Frame-only configuration for compatible component selection
- Rated for 40°C operation
- Supports multiple interrupt ratings:
- 22kA at 600VAC
- 30kA at 480VAC
- 42kA at 240VAC
- Designed for replacement and maintenance applications
- Helps maintain existing electrical distribution equipment
- Built to last in commercial and industrial environments
Technical Specifications
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Catalog Number: LA3400F
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Product Type: Molded Case Circuit Breaker Frame
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Frame Type: TFK
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Trip Type: Thermal Magnetic
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Amperage Rating: 400 Amps
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Number of Poles: 3
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Voltage Rating: 600VAC
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Operating Temperature Rating: 40°C
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Interrupt Rating:
- 22kAIC at 600VAC
- 30kAIC at 480VAC
- 42kAIC at 240VAC
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Dimensions: 10.75 in. H × 8.25 in. W × 4.00 in. D
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Configuration: Frame Only
Material Compliance and Certifications
The LA3400F thermal magnetic molded case circuit breaker frame is intended for use in compatible electrical distribution equipment. Installation should follow the National Electrical Code (NEC), applicable local electrical requirements, and accepted electrical safety practices.
Where It Works Best
- Commercial electrical distribution systems
- Industrial facilities
- Manufacturing plants
- Electrical switchboards and distribution equipment
- Three-phase power applications
- Maintenance and replacement projects
- Existing TFK frame installations
- Applications requiring a 400 Amp, 3-pole molded case circuit breaker frame
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.
Eaton®, Cutler-Hammer®, Westinghouse®, Challenger®, Bussmann®, Edison®, Edison Fuse®, Crouse-Hinds®, and Cooper® are registered trademarks of Eaton Corporation plc. Products sold are surplus, used, or refurbished and are NOT supplied by Eaton Corporation plc or its affiliates.