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Matched our existing hardware and fit as expected. Clean install.
Maintenance · Retrofit work
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circuit-breaker
Eaton Cutler-Hammer 3TA631LK 400A Circuit Breaker | AmpState
★★★★★
| Part Number | 3TA631LK |
| Amperes | 400 |
| 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.
Eaton Cutler-Hammer 3TA631LK 400A Circuit Breaker | AmpState
Regular price
$10.00
Sale price
$10.00
Regular price
Unit price
Product description
Shipping
Meet the Eaton Cutler-Hammer 3TA631LK 400A Circuit Breaker—engineered for reliable protection in panelboards, load centers, and broad electrical distribution networks. This genuine Eaton part is especially valuable for retrofit work and maintenance planning, where keeping the exact part number in service minimizes downtime and rework while preserving system integrity.
Why this 400A circuit breaker stands out
- Exact part number compatibility for Eaton panelboards and load centers, making replacements straightforward and confidently aligned with existing installations.
- 400 A interrupting capability delivers robust protection for high-current circuits without compromising system reliability in commercial and industrial settings.
- Genuine Eaton Cutler-Hammer design, crafted to perform consistently under demanding electrical distribution conditions.
- Ideal for retrofit projects and preventive maintenance where maintaining a consistent part number simplifies inventory management and service planning.
- Available through AmpState with support to verify fit—our team can help confirm compatibility based on your panel model and configuration.
Practical use cases
- Retrofit and replacement in existing Eaton-based panelboards and load centers, keeping the same part number to ensure seamless integration.
- Maintenance programs that rely on standardized components across multiple sites, reducing stocking complexity and mis-matches.
- High-current protection in commercial and light-industrial distribution systems where dependable 400 A performance is required.
- New installations within Eaton-compatible electrical distribution networks that demand certified, genuine parts for safety and compliance.
Specification snapshot
- Manufacturer: Eaton Cutler-Hammer
- Part Number: 3TA631LK
- Product Type: Circuit Breaker
- Amperage: 400 A
- Applications: Panelboards, Load Centers, Electrical Distribution
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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