Bender ISOMETER IRDH275, Manual

Page: 122 / 184

Connection
30 IRDH275_D00122_03_M_XXEN/05.2017
Only one ISOMETER® may be connected to an external TEST or RESET button.
A galvanic parallel connection of several TEST and RESET inputs for collective
testing of ISOMETER®s is not permitted.
External coupling devices connected via the terminal AK cannot be switched
off via the internal coupling relays. If no coupling device is used, the terminal
AK remains free.
L1
L2
L3
2
3
4
5
Un
3 AC - System
L2
L1
L+
L-
DC - System
L2 L1
Un
L1
L2
AC - System
L2 L1
Un
-
/~
+/~
PE
A1/+ A2/- L1 L2 AK KE
T1 T2 R1 R2 F1 F2 M+ M- A B 11 12 14 21 22 24
IRDH275(B)
mA
120
W
K1
K2
1
6
7 8 9 10 11 12 13
Us
Un
L1
L2
L3
3/N AC - System
L2 L1
N