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The NRN5 – Gould 5A 250V Class H One-Time Fuse is designed for reliable circuit protection in various applications. With its compact design, this fuse ensures safety and prevents damage to electrical systems by interrupting the flow of current when overloaded. Perfect for those seeking dependable performance and compliance with industry standards.
A Class H one-time fuse like the NRN5 is a single-use device — once it blows, the entire fuse must be replaced. A renewable fuse, by contrast, uses a replaceable link inside a reusable body. The NRN5 can directly replace other 5A 250V Class H one-time fuses (such as the Bussmann NON5 or Ferraz Shawmut OT5) in any compatible Class H/K fuse holder rated for 250V.
The Gould NRN brand has transitioned through several ownership changes over the years. If the NRN5 is no longer in active production, Northern Breaker Group specializes in sourcing obsolete and hard-to-find electrical components. We can also help identify a current, code-compliant cross-reference if an exact replacement is unavailable. Contact our Calgary, Edmonton, or Vancouver counter for availability.
Yes — upgrading to a Class RK1 or RK5 fuse of the same 5A/250V rating is a common improvement, as these offer current-limiting capability and higher interrupting ratings. However, you must ensure your existing fuse holder accepts the Class RK rejection feature, or replace the holder accordingly. Our team can advise on compatible upgrade options for your specific application.
