Eaton FRS-R-250 fuse - Class RK5, 250 A, CE, 200 kAIC
Part Number: FRS-R-250
Quick Summary
The Eaton FRS-R-250 fuse is a time-delay, dual-element current-limiting device for branch-circuit protection in electrical panels. It helps minimize nuisance trips during transient faults while protecting wiring and components in industrial controls. CE marking confirms European compliance, and the RK5 class guides reliable replacement and consistent performance in high-load environments. With a 250 A rating and a 200 kAIC interrupt at 600 Vac, this fuse supports scalable protection for modern automation while enabling safe, efficient maintenance and consistent protection across diverse applications.
Product Information
Extended Description
FRS-R-250 Eaton: Eaton Bussmann Series Class RK5 fuse, FRS-R, time-delay, dual-element, current limiting fuse, 250 A, non-indicating fuse, interrupting rating of 200 kA at 600 Vac and 20 kA at 300 Vdc
Product Name
Eaton Bussmann series FRS-R fuse
Catalog Number
FRS-R-250
UPC
051712508506
Product Length/Depth
5 in
Product Height
0.81 in
Product Width
0.81 in
Product Weight
0.4 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
250 A
Interrupt rating
200 kAIC at 600 Vac 20 kAIC at 300 Vdc
Response time
10 sec at 500%
Voltage rating
600 Vac, 300 Vdc
Number of elements
Dual
Packaging type
Standard
Class
Class RK5
Connection
Blade end x blade end
Fuse indicator
Non-indicating
Bussmann Full Line Catalog
Bussmann Full Line Catalog
RoHS Search Tool
Bussmann series Fuseology
Bussmann series FRS-R 600 V Class R 65-600 A fuse data sheet no. 1018
Time-delay, dual-element design offers tolerant inrush handling without sacrificing protection, enabling smoother motor starts and reduced electrical stress for downstream devices. Business impact: lower downtime and fewer nuisance trips, improving productivity in motor loads, conveyors, and HVAC systems. Application: industrial automation panels, machine controls, and panelboards needing reliable branch-circuit protection with controlled fault-clearing. The 250 A rating paired with a 200 kAIC interrupt at 600 Vac delivers robust fault protection for high-energy circuits; business impact: enhanced safety margins and reduced equipment damage in fault events. Application: large feeders and critical control circuits requiring fast yet selective clearing. RK5 class and blade-end connections simplify installation, enabling straightforward retrofit into existing Bussmann RK5 footprints; business impact: faster commissioning, lower installation costs, and scalable protection for growing plants. Non-indicating design reduces panel clutter while maintaining mechanical compatibility across standard RK5 holders; Application: clean, maintenance-friendly enclosures in highly regulated environments. The blade-end x blade-end connection and standard 5 in length ensure compatibility with common protective fuse blocks; impact: predictable replacement intervals and simplified stocking for procurement teams.
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FAQs
The FRS-R-250 uses standard blade-end x blade-end connections designed for RK5 fuse blocks. Verify the panel is rated for 600 Vac and 250 A, then power down and replace with the same catalog number FRS-R-250. Ensure the enclosure supports the 5 in length and 0.81 in width, and confirm the bus bar orientation aligns with blade contacts for a secure, code-compliant fit.
The FRS-R-250 provides a 200 kAIC interrupt rating at 600 Vac, and a supplementary 20 kAIC at 300 Vdc. It is rated for 600 Vac and 300 Vdc, with a 250 A amperage rating and a time-delay, dual-element design suitable for inrush currents common in motor starts.
Yes. The time-delay, dual-element RK5 fuse with a 250 A rating is well-suited for motor protection and other inrush-heavy loads in automation and process equipment. Its high interrupt rating and current-limiting characteristics help isolate faults quickly while tolerating startup surges, protecting both conductors and motors.
This fuse carries CE marking, indicating European conformity. It belongs to the Class RK5 family, offering standardized performance and interchangeability within Bussmann/RK5 fuse blocks, simplifying cross-device compliance and replacement in compliant electrical systems.
Because the FRS-R-250 is a non-indicating fuse, rely on periodic panel checks and monitored electrical tests rather than visual status indicators. With a robust 200 kAIC at 600 Vac interrupt rating and solid inrush tolerance, replacement cycles are predictable under load, reducing unplanned downtime and supporting predictable maintenance budgets.