- Monday - Friday 07:00 AM - 04:30 PM
The A4J200 – GOULD 200A 600V Fast Acting Fuse is designed for superior performance and reliability in high-demand electrical applications. This fast-acting fuse protects your circuits from overloads and short circuits, ensuring safe operation at critical moments. Ideal for industrial and commercial use, it combines durability with efficient fuse protection.
The A4J200 is a Class J fuse, so it fits any Class J-rated fuse holder or fusible disconnect designed for 200A at 600V. Popular compatible holders come from manufacturers such as Eaton, Mersen, and Littelfuse. Always confirm your holder's ampere and voltage rating matches the fuse before installation.
Physically, yes — both fast-acting and time-delay Class J fuses share the same rejection-style form factor. However, the fast-acting characteristic of the A4J200 is typically chosen to protect semiconductor equipment or circuits that cannot tolerate even brief overloads. Substituting a time-delay fuse may compromise that protection, so consult your equipment documentation or a qualified electrician before switching fuse types.
The Gould A4J brand has transitioned through several ownership changes (Gould → Ferraz Shawmut → Mersen), and some catalogue numbers may be superseded or available as new-old-stock. Northern Breaker Group specializes in obsolete and hard-to-find fuses and can source the A4J200 or confirm the current equivalent. Contact our Calgary, Edmonton, or Vancouver counter for availability and lead time.
Looking for pricing, stock or delivery?
Reviews are for product feedback and are not monitored by our sales team. For a price, availability or lead time on this part, send a quote request — we reply from our Calgary, Edmonton and Vancouver counters.
No reviews yet for this product. If you have used it, your feedback helps other trades people choose the right part.
Be the first to review this product