- Monday - Friday 07:00 AM - 04:30 PM
The OTS400 – GOULD 400A 600V CLASS K5 ONE-TIME FUSE is designed for superior protection in electrical systems. Rated at 400 amps, this robust fuse ensures reliable performance in high-voltage applications. Its one-time use feature provides essential safety, preventing overloads and ensuring optimal functionality for your equipment. Ideal for various industrial applications.
Not as a direct drop-in replacement without engineering review. The OTS400 is a Class K5 one-time (non-time-delay) fuse. Substituting a time-delay fuse changes the overcurrent response characteristics, which may affect equipment protection and code compliance. Always consult your system documentation or a qualified electrician before changing fuse types.
The Gould OTS series is a legacy product line, and availability can vary. Northern Breaker Group specializes in hard-to-find and obsolete electrical components — contact our Calgary, Edmonton, or Vancouver locations for current stock or to request a quote.
The OTS400 requires a fuse holder or fusible disconnect rated for Class K fuses at 400A and 600V. Class K fuses are non-rejection style, meaning they can also fit Class H holders — however, always verify your holder's interrupting rating meets or exceeds the fuse's 50kA rating. Contact us with your holder details and we'll help confirm compatibility.
