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FRN-R-350 - 350Amp Fuse

  • 350 Amp
  • 200 kA @ 250 V.AC Volts AC
FusesSKU: FRN-R-350

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FRN-R-350 - 350Amp Fuse Description

FRN-R-350 - 350Amp Fuse

Working with a 350-amp fuse leaves little room for guesswork, and the FRN-R-350 provides specific ratings to verify before it goes into service. Eaton also lists finger safe as a special feature. Put those details together, and you have the information electricians and maintenance teams actually need when checking an FRN-R-350 against the fuse holder, circuit requirements, and equipment documentation.

Key Features and Benefits

  • 350A, Class RK5 – The core electrical and class specifications for the FRN-R-350.
  • Dual-element construction – Part of the specified design of this fuse.
  • Rated for 250V AC and 125V DC, giving you published ratings for both AC and DC use.
  • 10-second response at 500% – Eaton provides a specific response-time figure rather than leaving that characteristic undefined.
  • Blade ends on both sides – Check the existing fuse holder for the correct connection style and physical fit.
  • Non-indicating configuration – No fuse indicator is specified on this model.
  • Finger safe – Listed by Eaton as a special feature of the FRN-R-350.

Technical Specifications

  • Catalog Number: FRN-R-350
  • Product Name: Eaton Bussmann Series FRN-R Fuse
  • Product Type: Fuse
  • Series: FRN-R
  • Amperage Rating: 350A
  • Fuse Class: Class RK5
  • Voltage Rating: 250V AC / 125V DC
  • Interrupting Rating at 250V AC: 200 kAIC
  • Interrupting Rating at 125V DC: 20 kAIC
  • Response Time: 10 seconds at 500% of rated current
  • Elements: Dual
  • Connection: Blade end × blade end
  • Fuse Indicator: Non-indicating
  • Special Feature: Finger safe
  • Length / Depth: 8.63 in
  • Height: 2.38 in
  • Width: 2.38 in
  • Weight: 1.95 lb
  • Packaging Type: Standard
  • UPC: 051712507523

Material Compliance and Certifications

The manufacturer specifications supplied for the FRN-R-350 list the fuse as CE-marked. No additional catalog-specific certifications or material-compliance declarations were included in the information provided.

Where It Works Best

  • Equipment documentation that specifically specifies an FRN-R-350 fuse
  • 350A Class RK5 fuse positions with the correct holder
  • Fuse holders that accept its blade-to-blade connection
  • Installations that accommodate the 8.63 × 2.38 × 2.38-inch physical dimensions
  • Specifications calling for dual-element, non-indicating construction
  • Situations where the specified 10-second response at 500% agrees with the required fuse characteristics

Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. CIRCUIT BREAKER SUPERSTORE® is an independent reseller and is not an authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do not apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.

Eaton®, Cutler-Hammer®, Westinghouse®, Challenger®, Bussmann®, Edison®, Edison Fuse®, GTE Sylvania®, Crouse-Hinds®, and Cooper® are registered trademarks of Eaton Corporation plc. Products sold are surplus, used, or refurbished and are NOT supplied by Eaton Corporation plc or its affiliates.

Specifications

  • Width:2.0
  • Depth:2.0
  • Height:8.63
  • Amperes:350
  • A.I.C. Rating & Volts:200 kA @ 250 V.AC
  • Type:FRN-R
  • Additional Notes:Knife-Blade Style, Non-Indicating, Time-Delay, current-limiting Class R Fuse

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