EKF VA-99M EKF - Page 8

8
Parameters
Values














Rated
current In, А
63 100 250 400 630 800 1250
Rated
insulation
voltage Ui, V
800 800 800 800 800 800 800
Rated
impulse
voltage,
Uimp, kV
8
Rated
operating
voltage Ue, V
400
Ultimate
short-circuit
breaking
capacity
Icu, kA
50 50 50 65 65 75 65
Service
short-circuit
breaking
capacity
Ics, kА
35 35 35 42 42 50 50
Set point
of thermal
protection
current
Ir1, A
32-63 63-100
100-
250
160-
400
252-
630
630-
800
850-1250
Rated
short-time
withstand
current
Icw, kA
1,2
t=0,5 c
1,2
t=0,5 c
1,2
t=0,5 c
5
t=1 c
8
t=1 c
10
t=1 c
20
t=1 c
Utilization
category
B
Trip unit Electrnonic
Table 4 - Technical data of VA-99M with electronic trip unit