5.9 - Short circuit withstand current
Short-circuit withstand current (TN system
(1)
)
30RB-RBP 170R 190R 210R 230R 270R 310R 340R 380R 410R
Rated short-circuit withstand currents
Rated short time (1s) current - Icw kA e 5,5 8,5 8,5 8,5 8,5 20 20 20 20
Rated peak current - Ipk kA pk 154 330 330 330 330 330 330 330 330
Value with upstream electrical protection 
(1)
Rated conditional short circuit current Icc
kA e 50 50 50 50 50 50 50 50 50
Associated protection
NSX160N 
/ =S=
NSX250N 
/ =S=
NSX250N 
/ =S=
NSX250N 
/ =S=
NSX250N 
/ =S=
NSX250N 
/ =S=
NSX400N 
/ =S=
NSX400N 
/ =S=
NSX400N 
/ =S=
Associated protection
TM160D /
LV430840
TM200D /
LV431831
TM200D /
LV431831
TM250D /
LV431831
TM250D /
LV431831
TM250D /
LV431831
Micrologic 
2,3 400 A / 
LV432693 
Micrologic 
2,3 400 A / 
LV432693 
Micrologic 
2,3 400 A / 
LV432693 
30RB-RBP 450R 480R 550R 610R 670R 720R 770R 820R 870R 950R
Rated short-circuit withstand 
currents
Rated short time (1s) current - Icw kA e 20 20 20 20 20 20 35 35 35 35
Rated peak current - Ipk kA pk 330 330 330 330 330 330 330 330 330 330
Value with upstream electrical protection 
(1)
Rated conditional short circuit current Icc
kA e 50 50 50 50 50 50 50 50 50 50
Associated protection 
NSX400N 
/ =S=
NSX630N 
/ =S=
NSX630N 
/ =S=
NSX630N 
/ =S=
NSX630N 
/ =S=
NSX630N 
/ =S=
NS800 / 
=S=
NS800 / 
=S=
NS800 / 
=S=
NS800 / 
=S=
Associated protection
Micrologic 
2,3 400 A / 
LV432693 
Micrologic 
2,3 630 A / 
LV432893
Micrologic 
2,3 630 A / 
LV432893
Micrologic 
2,3 630 A / 
LV432893
Micrologic 
2,3 630 A / 
LV432893
Micrologic 
2,3 630 A / 
LV432893
Micrologic 
5,0 800 A 
/34426
Micrologic 
5,0 800 A 
/34426
Micrologic 
5,0 800 A 
/34426
Micrologic 
5,0 800 A 
/34426
30RQ-RQP 165R 180R 210R 230R 270R 310R
Rated short-circuit withstand currents
Rated short time (1s) current - Icw kA e 5,5 8,5 8,5 8,5 8,5 20
Rated peak current - Ipk kA pk 154 330 330 330 330 330
Value with upstream electrical protection 
(1)
Rated conditional short circuit current Icc kA e 50 50 50 50 50 50
Associated protection
NSX160N / 
=S=
NSX250N / 
=S=
NSX250N / 
=S=
NSX250N / 
=S=
NSX250N / 
=S=
NSX400N / 
=S=
Associated protection
TM160D / 
LV430840
TM200D / 
LV431831
TM250D / 
LV431831
TM250D / 
LV431831
TM250D / 
LV431831
Micrologic 
2,3 400 A / 
LV432693 
30RQ-RQP 330R 370R 400R 430R 470R 520R
Rated short-circuit withstand currents
Rated short time (1s) current - Icw kA e 20 20 20 20 20 20
Rated peak current - Ipk kA pk 330 330 330 330 330 330
Value with upstream electrical protection 
(1)
Rated conditional short circuit current Icc kA e 50 50 50 50 50 50
Associated protection 
NSX400N / 
=S=
NSX400N / 
=S=
NSX400N / 
=S=
NSX400N / 
=S=
NSX630N / 
=S=
NSX630N / 
=S=
Associated protection
Micrologic 
2,3 400 A / 
LV432693 
Micrologic 
2,3 400 A / 
LV432693 
Micrologic 
2,3 400 A / 
LV432693 
Micrologic 
2,3 400 A / 
LV432693 
Micrologic 
2,3 630 A / 
LV432893
Micrologic 
2,3 630 A / 
LV432893
(1)  If another current limitation protection device is used, its time-current and thermal constraint (I²t) trip characteristics must be at least equivalent to those of the recommended 
protection. 
  Note: The short-circuit withstand current capability values above have been established for the TN system.
IT system: The short circuit holding current values given above for the TN system are not valid for IT; modications are 
required.
5 - PHYSICAL AND ELECTRICAL DATA FOR THE UNITS 
17