Littelfuse

Littelfuse FLSR250ID Class RK5 Fuse – 250A – 600V Time-Delay Indicating Fuse

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SKU: FLSR250ID GTIN/UPC: 07945817090
$113.40
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The Littelfuse FLSR250ID is a 250 Amp Class RK5 dual-element time-delay fuse designed for industrial and commercial electrical distribution systems. Part of the FLSR_ID series, this fuse features a built-in blown-fuse indicator that provides quick visual identification of an opened fuse, reducing troubleshooting time and simplifying maintenance. Its dual-element design allows temporary motor starting and transformer inrush currents while providing dependable overload and short-circuit protection.

Electrical Rating

  • Current Rating: 250 Amps
  • Maximum AC Voltage: 600 VAC
  • Maximum DC Voltage: 300 VDC
  • Interrupting Rating:
    • 200 kA AC
    • 20 kA DC @ 300 VDC

Key Specifications

  • Manufacturer: Littelfuse
  • Catalog Number: FLSR250ID
  • Series: FLSR_ID
  • Fuse Class: RK5
  • Construction Type: Knife-Blade
  • Fuse Type: Dual Element Time-Delay
  • Indicating: Yes

Protection Characteristics

  • Time-delay (slow-blow) operation
  • Dual-element fuse construction
  • Provides overload and short-circuit protection
  • Accommodates temporary motor starting and transformer inrush currents
  • High interrupting capacity for industrial power distribution systems

Construction Features

  • Knife-blade terminal construction
  • Visual blown-fuse indication feature
  • Industrial-duty design for demanding applications
  • Engineered for reliable long-term performance

Mounting & Compatibility

  • Mounting Method: Fuse Block / Clip / Holder
  • Compatible with standard Class RK5 fuse holders and fuse blocks
  • Suitable for switchboards, panelboards, motor control centers, and industrial distribution equipment

Applications

  • Motor branch circuit protection
  • Transformer protection
  • Industrial machinery and equipment
  • Commercial electrical distribution systems
  • Feeder and branch circuit protection

Product Data

  • Manufacturer: Littelfuse
  • Catalog Number: FLSR250ID
  • Product Type: Indicating Time-Delay Fuse
  • Series: FLSR_ID
  • Fuse Class: RK5
  • Type Fuses
  • Vendor Littelfuse
  • Brand Littelfuse

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You may return items within 30 days of delivery for a refund.

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