Bussmann Series KTK-2 2A 600V KTK Fuse Industrial Supplier

Eaton Bussmann KTK-2 2A 600V Fast-Acting Supplemental Fuse

Buy Eaton Bussmann KTK-2 fuse online.The Eaton Bussmann KTK-2 is a 2 amp, 600Vac fast-acting supplemental midget fuse designed for control circuits, lighting circuit protection, meter circuits and other compatible resistive-load applications.

Its compact 13/32 inch × 1-1/2 inch cylindrical construction allows installation in properly rated midget fuse blocks, fuse holders and fuse clips. With a 100 kA interrupting rating at 600Vac, the KTK-2 provides high fault-current interrupting capability for equipment and circuits where supplemental overcurrent protection is permitted.

Key Features

• Catalog Number: KTK-2
• Rated Current: 2 A
• Rated Voltage: 600 Vac
• Operating Characteristic: Fast-acting
• Protection Category: Supplemental fuse
• Interrupting Rating: 100 kA at 600 Vac
• Recommended Load Type: Resistive loads
• Fuse Indicator: Non-indicating
• Connection: Ferrule end to ferrule end
• Nominal Size: 13/32 × 1-1/2 in
• Metric Size: 10.3 × 38.1 mm
• Tube Material: Melamine
• Endcap Material: Nickel-plated bronze
• Series Color Code: Black for 600Vac maximum rating

Technical Specifications

Typical Applications

• Industrial control circuits
• Lighting circuit protection
• Meter and instrumentation circuits
• Resistive-load circuits
• Electrical equipment requiring supplemental protection
• Replacement applications that specifically specify KTK-2

Fast-Acting Protection for Resistive Loads

The Bussmann KTK-2 uses a fast-acting operating characteristic intended for circuits where rapid fuse response is required. Eaton identifies the KTK series for resistive-load applications, including control, lighting and meter circuits.

Unlike a time-delay fuse, the KTK-2 is not designed to intentionally tolerate large or extended startup currents. Applications with motors, transformers or other high-inrush loads may require a different fuse characteristic specified by the equipment manufacturer.

100 kA Interrupting Rating

The KTK-2 has a published interrupting rating of 100 kA at its rated voltage of 600Vac. The interrupting rating identifies the maximum prospective fault current the fuse is rated to interrupt under its applicable test conditions.

Before installation, verify that the circuit voltage and available fault current do not exceed the fuse and fuse-holder ratings. The complete overcurrent protection system must be selected according to the equipment requirements and applicable electrical standards.

Compact Midget Fuse Construction

The KTK-2 uses a compact 13/32 inch × 1-1/2 inch midget fuse format with ferrule connections at both ends. Its small footprint supports installation in compatible modular fuse blocks, DIN-rail holders, panel-mount holders, in-line holders and approved fuse clips.

The body uses melamine tube construction with nickel-plated bronze endcaps. The KTK series is color coded black to identify its 600Vac maximum voltage rating.

Supplemental Overcurrent Protection

The KTK-2 is classified as a supplemental fuse under UL 248-14. It is intended for use inside equipment or in circuits where supplemental overcurrent protection is permitted.

It should not be used as a substitute for a required branch-circuit fuse. Physical size and amperage alone do not establish interchangeability with Class CC or other branch-circuit fuse types.

Compatible Fuse Blocks and Holders

Eaton lists several holder families for KTK supplemental midget fuses, including BMM modular fuse blocks, CHM DIN-rail holders, HPM and HPS panel-mount holders, HEB and HEX in-line holders, and compatible PCB fuse clips.

The exact holder catalog number depends on pole count, mounting method, terminal configuration, voltage rating and application requirements. Always verify the complete fuse-holder specification before installation.

KTK-2 and KTK-R-2 Are Different Fuse Types

The KTK-2 should not be confused with the KTK-R-2. The KTK-2 is a fast-acting supplemental midget fuse rated 2A and 600Vac. The KTK-R-2 is a Class CC rejection-style current-limiting fuse with different classification and protection characteristics.

Even when two fuses have similar external dimensions, they may not provide the same electrical protection. Confirm the complete part number printed on the existing fuse or specified in the equipment documentation before ordering.

Standards and Compliance

• UL Listed to UL 248-14
• CSA Certified to CSA C22.2 No. 248.14
• CE marked
• RoHS compliant

Important Selection Information

Before purchasing, confirm the complete manufacturer catalog number KTK-2, the required 2 amp rating, the 600Vac maximum voltage rating, the 100 kA interrupting rating and compatibility with the installed fuse holder.

Do not select a replacement fuse solely by appearance, physical size or current rating. Voltage rating, operating characteristic, fuse classification, interrupting rating and equipment requirements must also be verified.

Ordering Information

Order using the complete manufacturer part number Eaton Bussmann KTK-2. Confirm the required quantity, product condition and all electrical specifications before purchase or installation.