On one hand, you need current-limiting protection for medium-voltage transformers and distribution systems. On the other, you need short circuit protection for medium-voltage motors and motor controllers. Mersen's line of medium-voltage UL Listed fuses fills the bill with E-rated, R-rated and capacitor fuses.
POTENTIAL TRANSFORMER FUSES Ferraz Shawmut E-rated PT fuses are current limiting fuses with high interrupting rating, used for primary winding protection of potential transformers. They are small dimension, ferrule-type fuses and mounted in standard clips. Ratings are 625V 3E to 5E and 2400 to 2750 V 1/2E to 5E …more
POTENTIAL TRANSFORMER FUSES Ferraz Shawmut E-rated PT fuses are current limiting fuses with high interrupting rating, used for primary winding protection of potential transformers. They are small dimension, ferrule-type fuses and mounted in standard clips. Ratings are 1/2E to 5E **. …more
POTENTIAL TRANSFORMER FUSES Ferraz Shawmut E-rated PT fuses are current limiting fuses with high interrupting rating, used for primary winding protection of potential transformers. They are small dimension, ferrule-type fuses and mounted in standard clips. Ratings are 1/2E to 3E **. …more
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625V to 2750V PT Fuse 
