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circuit-breaker
Square D LA400AWK 400A 3P 600V Circuit Breaker, NEMA 3R | AmpState
★★★★★
| Part Number | LA400AWK |
| Amperes | 400 |
| Poles | 3 |
| Voltage | 600 |
| Product Type | circuit-breaker |
Regular price
$10.00
Sale price
$10.00
Regular price
Unit price
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Seamless online shopping experience guaranteed with easy shipping and returns policy.
Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
Square D LA400AWK 400A 3P 600V Circuit Breaker, NEMA 3R | AmpState
Regular price
$10.00
Sale price
$10.00
Regular price
Unit price
Product description
Shipping
Introducing the Square D LA400AWK 400A 3P 600V Circuit Breaker — a rugged, reliability-first solution designed for panelboards, load centers, and electrical distribution. With a 400 amp 3-pole configuration and a 600V rating, this breaker delivers robust protection for demanding, multi-phase systems. Its NEMA 3R enclosure rating means dependable performance in outdoor or weather-exposed installations, so you can protect critical circuits without sacrificing versatility.
engineered for retrofit work and maintenance planning, the LA400AWK helps keep procurement simple by maintaining the exact part number you rely on. That consistency reduces downtime and compatibility risk when upgrading or replacing protective devices in established electrical systems.
- 400 A, 3-pole, 600 V protection for large-drawing, three-phase circuits
- NEMA 3R weather-resistant enclosure for outdoor and sheltered indoor applications
- Panelboards, load centers, and electrical distribution compatibility for seamless integration into existing gear
- Part-number stability supports retrofit projects and ongoing maintenance without procurement surprises
- AmpState availability ensures quick access when you need a reliable replacement
Who this is for: facilities engineers overseeing retrofits or routine maintenance in commercial or industrial settings; electricians and contractors needing dependable, 3-phase protection for 600V systems; and procurement teams prioritizing consistent part numbers to minimize inventory complexity.
Practical use cases include outdoor feeders to protection-critical equipment, upgrades to expand or modernize electrical distribution, and maintenance planning where preserving the exact LA400AWK model simplifies stocking and service schedules.
Compared to other 400A, 3-pole solutions, the LA400AWK combines Square D’s trusted design with a weather-rated enclosure, reducing rework when upgrading infrastructure and maintaining the same protection geometry and compatibility across your distribution network.
Ready to secure reliable protection? AmpState has the LA400AWK in stock. Need help matching a part number or confirming compatibility? Message us and we'll help you confirm fit.
Contact sales@ampstate.com
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What Our Customers Say
General feedback we often hear from customers purchasing industrial electrical parts.
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Good communication and clear updates while the order was processed.
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Looks and feels like a proper industrial-grade part. Works as expected.
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