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The A4J110 – GOULD 110A 600V Fast Acting Fuse is designed for reliable protection in electrical circuits. This high-quality fuse offers rapid response to overloads, helping to prevent equipment damage. Ideal for various applications, it ensures safety and efficiency in your electrical systems. Perfect for both commercial and residential use.
A fast-acting fuse like the Gould A4J110 responds almost instantly to both overloads and short-circuit currents, making it ideal for protecting equipment that has no inrush current at start-up — such as resistive heating elements, capacitors, and solid-state electronics. If your load is a motor or transformer (which draws a large inrush on start), a time-delay Class J fuse is typically the better choice to avoid nuisance blowing. Not sure which type suits your circuit? Contact our specialists and we'll help you select the right fuse.
The Gould brand was acquired by Eaton/Bussmann, and some Gould A4J series fuses have been superseded or discontinued. Northern Breaker Group specializes in obsolete and hard-to-find electrical components — we maintain stock of legacy fuses and can source the A4J110 or identify a currently manufactured drop-in replacement. Reach out to our Calgary, Edmonton, or Vancouver counters for availability.
The A4J110 is rated at 200kA interrupting capacity at 600V — one of the highest available in fuse technology. This means it can safely clear a fault even on services with very high available short-circuit current (ASCC), which is common in commercial and industrial installations close to utility transformers. Canadian Electrical Code (CEC) requires that overcurrent protective devices be rated at or above the available fault current at the point of installation. Always verify the ASCC at your panel before selecting a fuse.
