Eaton KTN-R-175 Fuse - Class RK1, 200 kAIC, 250 Vac
Part Number: KTN-R-175
Quick Summary
KTN-R-175 fuse by Eaton provides fast-acting protection for industrial power circuits in control panels and automated equipment. Engineers frequently face nuisance trips and slow fault isolation during startups, driving unplanned downtime. This Class RK1, fast-acting fuse delivers robust fault clearance with an interrupt rating of 200 kAIC at 250 Vac and 100 kAIC at 250 Vdc, while supporting both 250 Vac and 250 Vdc systems. In control panels, motor starters, and power-distribution blocks, it reduces arc energy, simplifies stocking, and eases procurement discussions. For OEMs and maintenance teams, this translates to improved uptime, predictable protection margins, and streamlined parts management in demanding industrial environments.
Product Information
Extended Description
KTN-R-175 Eaton: Eaton Bussmann Series Class RK1 fuse, KTN-R, fast-acting, current limiting fuse, 175 A, rejection style fuse, interrupting rating of 200 kA at 250 Vac and 100 kA at 250 Vdc
Product Name
Eaton Bussmann series KTN-R fuse
Catalog Number
KTN-R-175
UPC
051712407199
Product Length/Depth
7.1 in
Product Height
1.56 in
Product Width
1.56 in
Product Weight
0.92 lb
Warranty
Not Applicable
Compliances
Not Applicable
Amperage Rating
175 A
Interrupt rating
200 kAIC at 250 Vac 100 kAIC at 250 Vdc
Voltage rating
250 Vac, 250 Vdc
Number of elements
1
Packaging type
Standard
Class
Class RK1
Fuse indicator
Non-indicating
Bussmann Full Line Catalog
Bussmann Full Line Catalog
RoHS Search Tool
Bussmann series Fuseology
Bussmann series KTN-R 250 V Class R fuse data sheet no. 1043
Feature: Fast-acting, current-limiting RK1 fuse; Business Impact: Rapid fault clearance and reduced arc energy lower downtime and equipment damage; Application: Control panels, automation cabinets, and power distribution blocks. Feature: High interrupt ratings (200 kAIC at 250 Vac, 100 kAIC at 250 Vdc); Business Impact: Superior protection for high-energy fault scenarios, improving system resilience and safety; Application: Motors, drives, and feeders in heavy-duty installations. Feature: Voltage rating of 250 Vac and 250 Vdc; Business Impact: Versatile applicability across AC and DC circuits without needing multiple fuses; Application: DC bus protection and mixed-voltage panels. Feature: Class RK1, non-indicating fuse; Business Impact: Clear, industry-standard compatibility with Bussmann series devices; Application: Standardized panel design and simplified stocking. Feature: Standard packaging and single-element design; Business Impact: Easy installation and reliable replacement in field-service or OEM assembly lines; Application: Retrofit projects and new equipment builds. Industry context note: The KTN-R-175 supports compliance and reliability expectations in modern industrial environments, delivering measurable gains in uptime, maintainability, and total cost of ownership. It also aligns with common protection strategies for control systems, power distribution, and automation equipment.
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FAQs
Install the KTN-R-175 in a compatible Bussmann series fuse holder or panelboard designed for Class RK1 fuses. Verify rated current is 175 A and that wiring gauge matches the device terminals. Use proper torque specs and secure mounting to minimize vibration impact. The single-element, standard packaging simplifies field replacement during preventive maintenance.
The KTN-R-175 is a fast-acting, current-limiting fuse rated at 175 A with an interrupt rating of 200 kAIC at 250 Vac and 100 kAIC at 250 Vdc. It supports both 250 Vac and 250 Vdc systems, enabling protection across AC and DC circuits. This combination delivers swift fault clearance and minimizes arc energy in high-energy fault scenarios.
The KTN-R-175 excels in control panels, motor drive interfaces, and power distribution blocks where fast fault clearing is essential. Its 175 A rating and high interrupt capability make it suitable for industrial automation equipment, machine tools, and robotics power rails, helping reduce downtime and extend equipment life.
The device is categorized as a Class RK1 fuse. It is designed for standard Bussmann series compatibility and protective roles in industrial systems. While the data sheet confirms Class RK1 and electrical ratings, always verify any project-specific regulatory requirements (UL/CE/RoHS) from the latest Eaton documentation or your procurement team.
Using the KTN-R-175 can yield ROI through reduced downtime from faster fault clearance and simpler replacement processes thanks to standard packaging and single-element design. Routine checks should confirm connector integrity and torque at mounting points, with stock kept of compatible Bussmann holders to ensure rapid spares deployment during scheduled maintenance.