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| Part Number | NB12K |
| Amperes | 1200 |
| Product Type | Circuit Breaker |
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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.
Meet the Westinghouse NB12K 1200A circuit breaker—the trusted choice for high-current protection in maintenance, retrofit, and replacement projects. Designed to align with systems that require the NB12K reference, this breaker delivers precise compatibility when the part number is the driving factor for your install.
When your project demands a precise, high-capacity protective device, the NB12K model offers a straightforward path to reliable overcurrent protection. By using the NB12K part number as the compatibility touchstone, you minimize guesswork and reduce the risk of mismatched breakers that can prolong downtime or require costly rework.
This 1200A circuit breaker is well-suited for electrical environments where high-current protection is essential, such as industrial or commercial panels undergoing maintenance, upgrades, or part replacements. Its NB12K designation signals compatibility with systems designed for that specific form, fit, and rating, helping technicians select the correct device the first time.
Choosing the Westinghouse NB12K 1200A circuit breaker helps you achieve targeted protection for high-load circuits, enabling quicker replacements and reducing the risk of inappropriate substitutions. It’s a dependable option for professionals who prioritize accuracy, compatibility, and efficient maintenance cycles in demanding electrical environments.
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General feedback we often hear from customers purchasing industrial electrical parts.
Professional-grade feel. No issues reported during commissioning.
Controls · Commissioning
Arrived in good condition and helped keep our project on schedule.
Project team · Contractor
Exactly what most contractors expect from an industrial supplier.
Electrical · Commercial
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Email us at sales@ampstate.com for pricing, availability, alternates, and project support.
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