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The J426 Gould Fuse Reducer is an essential component for reducing a 400A fuse to a 200A capacity. Perfect for retrofitting existing systems or for specific applications requiring lower amperage. Designed for durability and reliability, it ensures optimal performance while maintaining electrical safety standards. Ideal for both commercial and residential use.
The Gould J426 reducer is installed inside a 400A Class J fuse holder or fusible disconnect to allow a smaller 200A Class J fuse to seat correctly and make proper contact. It's commonly used when load requirements have decreased and you need to derate a circuit without replacing the entire fuse block or disconnect assembly.
Gould's fuse product line has transitioned through several brand changes over the years (Gould → Shawmut → Mersen). The J426 may be discontinued or difficult to source through standard distribution channels. Northern Breaker Group specializes in obsolete and hard-to-find electrical components — contact one of our Calgary, Edmonton, or Vancouver counters for current stock availability or a direct replacement recommendation.
The reducer itself is rated at 600V, consistent with Class J fuse ratings. However, the overcurrent protection and interrupting rating are governed by the 200A Class J fuse you install, not the reducer. Always ensure the fuse installed in the reducer is appropriately rated for your circuit's available fault current and voltage. Consult your system engineer or contact us if you have questions about your specific application.
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