FRS-R-7 Eaton Bussmann FRS-R-7 is a class RK5 slow-blow cartridge fuse rated 7A at 600VAC/300VDC. It requires a holder and offers high interrupting capacity for industrial power systems.
Mfr Part #:

FRS-R-7

Available from 1 distributors
Mfr Name: Eaton - Electronics Division
Eaton - Electronics Division
Eaton Bussmann FRS-R-7 is a class RK5 slow-blow cartridge fuse rated 7A at 600VAC/300VDC. It requires a holder and offers high interrupting capacity for industrial power systems.
Total Stock: 11 pcs
$ Price Range: $58.42 - $80.09

FRS-R-7 Available from 1 distributor

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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11 pcs
11 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request

FRS-R-7 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Approval Agency
Breaking Capacity @ Rated Voltage
Class
Current Rating (Amps)
Fuse Type
Mounting Type
Response Time
Tape & Reel
Voltage Rating

FRS-R-7 Description

Short technical summary and product information.

The Eaton Bussmann FRS-R-7 is a 7 ampere, 600 volt AC / 300 volt DC class RK5 cartridge fuse designed for industrial and electrical applications. It features a slow-blow (time-delay) response characteristic, accommodating inrush currents without nuisance opening. The fuse is housed in a 0.810" diameter by 3.00" long (20.57mm x 76.20mm) cartridge, non-standard package, and requires a separate fuse holder for installation.

 

With an interrupting rating of 200,000 amps AC and 20,000 amps DC, the FRS-R-7 provides robust fault current protection in high-energy circuits. The RK5 class designation indicates a general-purpose, current-limiting fuse suitable for motor circuits, transformers, and other inductive loads.

 

The fuse carries approvals from CE, CSA, and UL, demonstrating compliance with international safety standards. Environmental compliance includes RoHS3, REACH unaffected, and MSL 1 (unlimited) as reported, though these are unverified. The part is cross-referenced under DigiKey part number FRS-R-7-ND.

FRS-R-7 Quick Information

Product Type: Cartridge Fuse
Series: FRS-R
Canonical Name: Eaton Bussmann FRS-R-7 RK5 Slow-Blow Cartridge Fuse, 7A, 600VAC/300VDC
Subcategory: Electrical, Specialty Fuses

FRS-R-7 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

FRS-R-7 Estimated Pricing

Qty Low High
1+ $80.09 $80.09
5+ $67.18 $67.18
10+ $61.90 $61.90
50+ $58.42 $58.42

Estimated market price range - modelled values for guidance only, not live distributor offers.

FRS-R-7 Features

  • Rated 7A at 600VAC/300VDC.
  • Slow-blow time-delay response.
  • RK5 class current-limiting fuse.
  • 200kA AC/20kA DC interrupting rating.
  • Requires separate fuse holder.

FRS-R-7 Applications

  • Protection for industrial motor circuits.
  • Branch circuit protection in panels.
  • Transformer and lighting circuit protection.
  • Used in electrical distribution systems.

FRS-R-7 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the FRS-R-7 fuse?

The fuse is rated for 7 amps continuous current.

What is the voltage rating of this fuse?

600 volts AC and 300 volts DC.

What is the interrupting capacity of the FRS-R-7?

200,000 amps AC and 20,000 amps DC.

Is the FRS-R-7 a fast-blow or slow-blow fuse?

It is a slow-blow (time-delay) fuse.

What fuse class is the FRS-R-7?

It is a class RK5 fuse.

What approvals does the FRS-R-7 have?

It is approved by CE, CSA, and UL.

What is the physical size of this fuse?

0.810 inches diameter by 3.00 inches length (20.57mm x 76.20mm).

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