Fuse Class RK5 400A FLSR Series MPN:FLSR400

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Brand: Littelfuse
Part #: FLSR400
SKU
226-CXO-486L61
$225.49
Fuse Class RK5 400A FLSR Series
These 600VAC UL Class RK5 fuses are time delay and nonindicating. They tolerate temporary inrush currents without opening, which prevents nuisance-blowing from motor and equipment startups. Also called slow-blow Class RK5 fuses, these 200kA IR fuses open to disconnect an electrical circuit when exposed to sustained loads and short circuits. They have no indicator for identifying a blown fuse, so they're sometimes used with an indicating fuse block or cover.

UL Class RK5 fuses provide moderate current limitation for general use applications where more current-limiting RK1 fuses aren't needed. These fuses have an interrupting rating (IR) of 200kA and are the same size as Class H and K fuses, but have a rejection feature that prevents an accidental downgrade from a current-limiting system. Their modified terminals ensure a match with the rejection clips in Class R fuse holders that prevent the installation of fuses with a lower interrupting capacity. They're typically used in newer equipment, but can also be used with a Class H fuse holder to upgrade older installations from Class H or K fuses for improved overcurrent protection. They are current-limiting to prevent electrical damage by disconnecting circuits before they're exposed to the full magnitude and duration of an overcurrent.

Technical Specifications

  • Item Fuse
  • Amps 400 A
  • AC Voltage Rating 600V AC
  • DC Voltage Rating 300V DC
  • Class RK5
  • Series FLSR
  • Visual Indication Nonindicating
  • Speed Time Delay
  • Body Style Blade
  • Fits Fuse Block Style Rejection
  • Interrupt Rating 200kA at 600V AC, 20kA at 300V DC
  • Fuse Size 11-5/8 in L x 2-19/32 in dia
  • Length 11 5/8 in
  • Diameter 2 19/32 in
  • Equivalent Brand and Series Bussmann FRS-R, Edison ECSR, Littelfuse FLSR, Mersen TRS-R
  • Equivalent Series ECSR, FLSR, FRS-R, TRS-R
  • Compatible Fuse Block Series LFR
  • Body Material Fiberglass
  • Element Dual
  • Standards CE, CSA Certification, QPL-W-F-1814, UL 248-12 Class RK5

Manufacturer Details

  • Manufacturer: Littelfuse
  • Condensed Mfg Number: FLSR400
  • MPN: FLSR400

Label Details

  • Hazardous Material: N
  • Green Material Flag: N
  • Country of Origin: MX
  • CA Prop 65 Wht Label: Y
  • CA Prop 65 Cancer Warning: Lead
  • CA Prop 65 Repro Warning: Lead
  • CA Prop 65 Warning Msg Scenario: 4

Classification Details

  • Harmonization Code: 8536100040
  • GDS Category Name: Class RK5 Fuses
  • GDS Family Name: Fuses
  • GDS Segment Name: Electrical
  • UNSPSC: 39121604
  • UNSPSC Class ID: 16
  • UNSPSC Commodity Name: Circuit protection devices and accessories
  • UNSPSC Commodity ID: 04
  • UNSPSC Commodity Name: Time delay fuses
  • UNSPSC Family ID: 12
  • UNSPSC Family Name: Electrical equipment and components and supplies
  • UNSPSC Segment ID: 39
  • UNSPSC Segment Name: Electrical Systems and Lighting and Components and Accessories and Supplies

Shipping Details

  • Not For Sale In: HI AK PR
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