Bussmann 12TDLEJ50 current limiting fuse for transformer protection|Abpower

Bussmann 12TDLEJ50 DIN Dimensioned IEC Fuse for Transformer Protection, fuse rating:12KV,50amp; fuse type:DIN medium voltage fuse. Fuse cross reference: Cooper Xian fusegear, SDLDJ-12kV/50A.ABPower_A bussmann fuse world.    

Fuse Application:

Transformer Protection

fuse rating:

12KV,50amp; 

fuse type:

DIN medium voltage fuse. 

Fuse cross reference: 

Cooper Xian fusegear, SDLDJ-12kV/50A.

Fuse size:

Primary or Secondary transformer protection Selection Guide

In unsupervised locations, with primary over 1000V, the primary transformer fuse can be sized at a maximum of 300%. If the secondary is over 1000V, the secondary transformer protection fuses can be sized at a maximum of 250% for transformers with impedances not greater than 6% or 225% for the transformers with impedances not greater than 6% or 225% for transformers with impedances greater than 6% and not more than 10%.If the secondary is 1000V or below, the secondary transformer fuses can be sized at a maximum of 125%. Where these ratings do not correspond to a standard fuse size, the next higher standard size is permitted.

In supervised locations, the maximum ratings are as shown in the next diagram. These are the same maximum settings as the unsupervised locations except for secondary voltages of 1000V or less, where the secondary transformer fuses can be sized at maximum of 250%.

Primary Protection Only

In supervised locations, the primary transformer fuses can be sized at a maximum of 250%, or the next larger standard size if 250% does not correspond to a standard transformer fuse size.