Bussmann LIMITRON KTN-R Series Class RK1 Fast-Acting Fuse

Bussmann LIMITRON KTN-R Series Class RK1 Fast-Acting Fuse

The Bussmann LIMITRON KTN-R Series is a family of Class RK1 fast-acting fuses engineered for reliable overcurrent protection in panelboards and other electrical distribution equipment. This series is available in amperage ratings from 40A to 50A, with every fuse in the family rated 250V and built to the same construction standard for consistent, dependable performance. Each LIMITRON KTN-R fuse features a melamine glass tube body fitted with 70/30 brass end caps for durable, conductive construction, and is supplied with ferrule end x ferrule end terminals for straightforward mounting into standard fuse clips and holders. All fuses in this family are built as non-indicating fuse bodies, meaning they do not include a blown-fuse indicator. As part of the Bussmann LIMITRON KTN-R family, these fuses are designed to deliver fast-acting response for Class RK1 rated applications, providing dependable circuit protection wherever LIMITRON KTN-R type fuses are specified. Select the amperage rating that matches your panelboard or equipment requirements from the 40A-50A range offered in this series.

Key Features

• Amperage Rating Range: Available from 40A to 50A to suit a range of panelboard branch circuit protection needs.
• Voltage Rating: 250V rated across the series for use on compatible electrical distribution systems.
• Class RK1 Fast-Acting Design: Part of the Bussmann LIMITRON series, providing fast-acting overcurrent response.
• LIMITRON KTN-R Series: Manufactured as part of the Bussmann LIMITRON KTN-R fuse family.
• Ferrule End x Ferrule End Terminals: Ferrule-style terminals on both ends for compatibility with standard fuse clips and holders.
• Melamine Glass Tube Construction: Durable melamine glass tube body supports consistent fuse performance across the series.
• 70/30 Brass End Caps: Brass end caps provide a secure, conductive connection at each terminal.
• Non-Indicating: Standard non-indicating fuse body without a blown-fuse indicator, common to every rating in this series.
• Panelboard-Rated: Sized and rated for use in panelboards requiring Class RK1 protection.

Technical Specifications

• Amperage Rating: 40A - 50A (select at checkout)
• Product Weight: .9 pounds
• Product Height: 3 inches

Typical Applications

• Panelboard Circuit Protection
• Branch Circuit Overcurrent Protection
• Commercial and Industrial Electrical Distribution Equipment
• Replacement Fuse for LIMITRON KTN-R Series Applications
• General Purpose Overcurrent Protection for Electrical Equipment
• Equipment and Electrical Panel Protection

Why Bussmann?

Bussmann fuses in the LIMITRON KTN-R series are built with durable materials, including melamine glass tube bodies and 70/30 brass end caps, to deliver consistent, dependable overcurrent protection across the full 40A-50A range. This Class RK1 fast-acting series reflects the LIMITRON line's reputation for reliable performance in panelboard and electrical distribution applications. Ferrule end x ferrule end terminals make every fuse in this family straightforward to install into compatible fuse clips and holders for professional electrical work.