Verified
Professional-grade feel. No issues reported during commissioning.
Controls · Commissioning
Seamless online shopping experience guaranteed with easy shipping and returns policy.
Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
circuit-breaker
Westinghouse 8MC400 400A 3P 600V Circuit Breaker, Bolt-On | AmpState
| Part Number | 8MC400 |
| Amperes | 400 |
| Poles | 3 |
| Voltage | 600 |
| Product Type | circuit-breaker |
Regular price
$996.00
Sale price
$996.00
Regular price
Unit price
Save
Seamless online shopping experience guaranteed with easy shipping and returns policy.
Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
Westinghouse 8MC400 400A 3P 600V Circuit Breaker, Bolt-On | AmpState
Regular price
$996.00
Sale price
$996.00
Regular price
Unit price
Product description
Shipping
Meet the Westinghouse 8MC400 400A 3P 600V Circuit Breaker, Bolt-On — a purpose-built protection device designed to slot into panelboards, load centers, and electrical distribution networks with direct part-number compatibility.
Key specifications
- Manufacturer: Westinghouse
- Part Number: 8MC400
- Product Type: Circuit Breaker
- Amperage: 400 A
- Poles: 3
- Voltage: 600 V
- Mounting: Bolt-On
Who benefits
- Maintenance teams needing rapid, field-ready replacements that fit exact part numbers
- Panel builders seeking reliable, Westinghouse-compatible protection for new installations
- Spare inventory managers prioritizing ready-to-install components for service calls
Why this matters
The bolt-on design streamlines installation in compatible panelboards, reducing downtime during replacements and upgrades. With a 400 A rating and 3 poles, this breaker delivers robust protection for high-demand circuits within 600V distributions. Choose a direct-part-number match like the 8MC400 to ensure seamless fit and reliable performance in your Westinghouse-powered electrical infrastructure.
Use cases
- Replacing a failed 3-pole, 400 A breaker in existing Westinghouse panelboards
- Upgrading distribution sections of industrial or commercial electrical rooms with precise compatibility
- Maintaining an emergency stock of verified spare breakers for service contracts and preventative maintenance
Compatibility and support
Available from AmpState. Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit, ensuring your panel remains protected with an exact Westinghouse replacement.
Contact sales@ampstate.com
Shipping cost is based on weight. Just add products to your cart and use the Shipping Calculator to see the shipping price.
We want you to be 100% satisfied with your purchase.
What Our Customers Say
General feedback we often hear from customers purchasing industrial electrical parts.
Verified
Arrived in good condition and helped keep our project on schedule.
Project team · Contractor
Verified
Exactly what most contractors expect from an industrial supplier.
Electrical · Commercial
