Westcode Semiconductors 070GQCAxxxxF, 070GQCAxxxxN, 070GTCAxxxxF Tripping Curves

WESTCODE An IXYS Company German Standard DIN 80 Knife Blade Fuses – 700V

Electrical Characteristics:

Times vs current characteristics:

The curve below shows, for each rating, value of peak let-through current Ic as a function of available
fault current Ip. Tolerance for mean pre-arcing current ±8%.

Total Clearing I2t

The horizontal curves show, for each rated current, values of total clearing I2t(I2tt) as a function of
prospective current Ip @ U

with cosϕ = 0.15. Oblique lines indicate total clearing duration Tt, with

N

associated pre-arcing duration in brackets.

Data Sheet 070GQCAxxxxF/N & 070GTCAxxxxF Issue 1 Page 3 of 5 March, 2005

WESTCODE An IXYS Company German Standard DIN 80 Knife Blade Fuses – 700V

Current Limitation Curve I2t Corrective Factor

IC (A)

5

Size 000

10

aR

4

10

3

10

2

10

Curves show for each current rating value of
peak let-through current I

as a function of

c

available fault current Ip

Peak Arc Voltage

Curve shows peak value Um of arc voltage
which appears across fuse link as a function of
the operating voltage U@ cos ϕ = 0.15

Mean curves show variation of total
clearing time (I
duration T

2

tt) and total clearing

as a function of operating

t

voltage U.

Power Loss

Curve enables computation of power
losses P for a I

-rated fuse as a

N

function of RMS current I (as a multiple
of IN for steady state operation).

Data Sheet 070GQCAxxxxF/N & 070GTCAxxxxF Issue 1 Page 4 of 5 March, 2005