481 Series - Alarm Indicating Fuse for Telecom Circuits

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Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

  • Color-coded indicator flags indicate ampere rating.
  • Body is constructed of black polyphenylene sulfide with UL-94V0 flammability rating, contacts are of bright alloy-plated beryllium copper.
  • Ideal for telecommunications and control panel circuits.
  • Eliminates down time by immediately pinpointing the blown (open) circuit while triggering LED or audio alarm, while placed in mating holder (482 Series).
  • Clear plastic lens option available for additional safety.

Access specifications, certifications, check availability and order parts below

Catalog #Amps (A)VAC (V)Nominal Melting I2T (A2sec)Resistance
Interrupting RatingOpeningStockSamplesCompare
0481.1800.181250.046.25300A@125VACFast-Acting (F)CheckOrder
0481.2000.21250.05765.7300A@125VACFast-Acting (F)CheckOrder
0481.2500.251250.06254.2300A@125VACFast-Acting (F)CheckOrder
0481.3000.251250.03564.2Fast-Acting (F)CheckOrder
0481.3500.3751250.0282Fast-Acting (F)CheckOrder
0481.3750.3751250.232300A@125VACFast-Acting (F)CheckOrder
0481.5000.51250.491.52300A@125VACFast-Acting (F)CheckOrder
0481.6000.651250.2781.25Fast-Acting (F)CheckOrder
0481.6500.651250.7231.25300A@125VACFast-Acting (F)CheckOrder
0481.7500.751251.320.98300A@125VACFast-Acting (F)CheckOrder
0481000Fast-Acting (F)CheckOrder
0481001.11251.820.665300A@125VACFast-Acting (F)CheckOrder
0481002.212510.20.12300A@125VACFast-Acting (F)CheckOrder
0481003.3125250.067300A@125VACFast-Acting (F)CheckOrder
0481004.4125360.035300A@125VACFast-Acting (F)CheckOrder
0481005.5125640.0285300A@125VACFast-Acting (F)CheckOrder
048101.51.51252.550.385300A@125VACFast-Acting (F)CheckOrder
0481010.10125380.30.0084300A@125VACFast-Acting (F)CheckOrder
0481012.12125571.20.0066300A@125VACFast-Acting (F)CheckOrder
0481015.151259000.0058300A@125VACFast-Acting (F)CheckOrder
048102.52.5125160.093300A@125VACFast-Acting (F)CheckOrder
0481020.2012510240.00394300A@125VACFast-Acting (F)CheckOrder
048103.53.512510.50.0415300A@125VACFast-Acting (F)CheckOrder
048107.57.51251210.0113300A@125VACFast-Acting (F)CheckOrder
04811.331.331253.130.48300A@125VACFast-Acting (F)CheckOrder