Potential Transformer Series - Medium Voltage Fuses

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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.

Potential Transformer (PT) fuses are current limiting fuses with high interrupting ratings designed for the protection of potential transformers.

Application Note:

When applying fuses for the protection of transformers, the magnetizing current inrush must be considered. The characteristics of the inrush, which can be matched with a fuse’s time-current curve, should be available from the transformer manufacturer.

Live Parts:

Live parts are available for mounting potential transformer single, double, and triple barrel fuses. Note, all clips are sold in pairs.

Access specifications, certifications, check availability and order parts below

Catalog #Amps (A)VAC (V)Interrupting RatingStockSamplesCompare
500E11PT15.50.51550035 kA @ 15500 VacCheckOrder
500E16PT25.50.52580032 kA @ 25800 VacCheckOrder
500E4PT2.40.5275037.5 kA @ 2750 VacCheckOrder
500E6PT5.50.5550050 kA @ 5500 VacCheckOrder
500E8PT5.50.5550050 kA @ 5500 VacCheckOrder
500E8PT8.250.5825050 kA @ 8250 VacCheckOrder
10E4PT.61060037.5 kA @ 625 VacCheckOrder
10E8PT5.510550050 kA @ 5500 VacCheckOrder
1E11PT15.511550035 kA @ 15500 VacCheckOrder
1E16PT25.512580032 kA @ 25800 VacCheckOrder
1E4PT2.41275037.5 kA @ 2750 VacCheckOrder
1E5PT4.81480050 kA @ 4800 VacCheckOrder
1E6PT2.751275037.5 kA @ 2750 VacCheckOrder
1E6PT5.51550050 kA @ 5500 VacCheckOrder
1E8PT2.751275037.5 kA @ 2750 VacCheckOrder
1E8PT5.51550050 kA @ 5500 VacCheckOrder
1E8PT8.251825050 kA @ 8250 VacCheckOrder
2E11PT15.521550035 kA @ 15500 VacCheckOrder
2E4PT2.42275037.5 kA @ 2750 VacCheckOrder
2E5PT4.82480050 kA @ 4800 VacCheckOrder
2E6PT2.752275037.5 kA @ 2750 VacCheckOrder
2E6PT5.52550050 kA @ 5500 VacCheckOrder
2E8PT2.752275037.5 kA @ 2750 VacCheckOrder
2E8PT5.52550050 kA @ 5500 VacCheckOrder
2E8PT8.252825050 kA @ 8250 VacCheckOrder
3E11PT15.531550035 kA @ 15500 VacCheckOrder
3E16PT15.531550035 kA @ 15500 VacCheckOrder
3E4PT.6362537.5 kA @ 625 VacCheckOrder
3E6PT2.753275037.5 kA @ 2750 VacCheckOrder
3E6PT5.53550050 kA @ 5500 VacCheckOrder
3E8PT2.753275037.5 kA @ 2750 VacCheckOrder
3E8PT5.53550050 kA @ 5500 VacCheckOrder
3E8PT8.253825050 kA @ 8250 VacCheckOrder
5E16PT15.551550035 kA @ 15500 VacCheckOrder
5E4PT.6560037.5 kA @ 625 VacCheckOrder
5E6PT5.55550050 kA @ 5500 VacCheckOrder
5E8PT5.55550050 kA @ 5500 VacCheckOrder
7E4PT.6760037.5 kA @ 625 VacCheckOrder

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