Fuse Class RK1 50A LPS-RK-SP Series MPN:LPS-RK-50SP

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Brand: Bussmann
Part #: LPS-RK-50SP
UPC: 051712548403
SKU
226-CXG-4XF77
Fuse Class RK1 50A LPS-RK-SP Series
Time-delay, nonindicating UL Class RK1 fuses tolerate temporary inrush currents without opening, which prevents nuisance-blowing from motor and equipment startups. Also called slow-blow Class RK1 fuses, they 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 RK1 fuses are more current-limiting than RK5 fuses to react more quickly to overcurrent. These fuses 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. These fuses 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 50 A
  • AC Voltage Rating 600V AC
  • DC Voltage Rating 300V DC
  • Class RK1
  • Series LPS-RK-SP
  • Visual Indication Nonindicating
  • Speed Time Delay
  • Body Style Cylindrical
  • Fits Fuse Block Style Rejection
  • Interrupt Rating 100kA at 300V DC, 300kA at 600V AC
  • Fuse Size 5-1/2 in L x 1-1/16 in dia
  • Length 5 1/2 in
  • Diameter 1 1/16 in
  • Equivalent Brand and Series Bussmann LPS-RK-SP, Littelfuse LLSRK, Mersen A6D-R
  • Equivalent Series A6D-R, LLSRK, LPS-RK-SP
  • Compatible Fuse Block Series 1BR, R600
  • Body Material Melamine
  • Element Dual
  • Standards CE, UL Special Purpose Guide JFHR, Guide JDDZ, File E4273, CSA Class 1422-02, File 53787, CSA C22.2, No. 248.12

Manufacturer Details

  • Manufacturer: Bussmann
  • Condensed Mfg Number: LPSRK50SP
  • MPN: LPS-RK-50SP

Label Details

  • Hazardous Material: N
  • Green Material Flag: N
  • Country of Origin: MX
  • CA Prop 65 Wht Label: N

Classification Details

  • Harmonization Code: 8536100040
  • GDS Category Name: Class RK1 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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