Westcode Semiconductors BS88250aR Tripping Curves

WESTCODEAn IXYS Company BS 88 Round Body Fuse - 250V

Electrical Characteristics:

Times vs current characteristics

These curves indicate, for each rated current, the pre-arcing time vs. the RMS pre-arcing current.
Tolerance for the mean pre-arcing current ± 10%

LCW : Size 10x28

Size 10x28

LEW (LEWI with indicator) : Size 17x27 I ≤ 80 LEW (LEWI with indicator): Size 17x27 I ≥ 100

Size 17x27

< 80

Size 17x27

>100

These curves indicate, for each rated current, the pre-arcing time vs the RMS pre-arcing current.

Tolerance for the mean pre-arcing current +/- 10%

Data Sheet. BS88250aR Issue 1 Page 4 of 6 March, 2005

WESTCODEAn IXYS Company BS 88 Round Body Fuse - 250V

Corrective Factor Peak Arc Voltage:

LCW : Size 10x28

LEW & LEWI : Size 17x27 I ≤ 80

LEW & LEWI : Size 17x27 I ≥ 100

Corrective factor :

The mean curves show the variance of the total
clearing time (I

as a function of operating voltage U.

t

t

2

t) and the total clearing duration

Peak arc voltage :

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

Data Sheet. BS88250aR Issue 1 Page 5 of 6 March, 2005