RN1 Indoor Type High Voltage limit Current Fuse

KEY WORDS:High pressure vacuum switch

Classification:

DETAILS

The product is in overload or short-circuit protection for elctric transformer. The current limiting means that the fuse will cut off the circuit before the shortcircuit current reaches the peak value.
Fusing feature: 
Current which passes the fuse when being 1.3 times of its specified electric current, Do not fusing for an hour; When the current through the fuse is 2 times of its specined electric current, fusing in an hour; Refer to its fusing feature curve in chart 1 when select the fuse.
◆Structure of fuse link

The fuse pipe is the main part of fuse,it is made by installing the fuse wire in the porcelain pipe,filling the quartz sand in the porcelain pipe and sealing to-ends of pipe.For the fuse pipe with rated current below 7.5Aand 35V rated voltage,its fuse wire is rolled on the special por-

celain core,referening to chart 2.a.for the fuse pipe with rated current above 7.5A,its fuse wire is hang in the porcelain pipe,referening to the chart.
 

  3 6 10 35

Rated current A

20 100 200 300 400 20 75 100 200 300 20 50 75 100 200 7.5 10 20 30 40
Max breaking curent KV (effective vakue) 40 20 12 3.5
The mininum breaking current Express
with specified electric current multipe
nuprovide 1.3 nuprovide 1.3 nuprovide 1.3 nuprovide 1.3

Three-phase maximum breaking capacity (MVA)

200
Weight 8 8.9 10.8 15.7 15.7 8.5 9.6 13.6 13.6 17 10 11.5 14.5 21 21 10 20 27 27 27

 

RETURN

Related products

undefined

undefined

Welcome to leave a message for consultation