Manual

9-4 Connections
865-UM001A-EN-P – July 2009
Terminal X3
No: Symbol Description
1 +48V Internal wetting voltage for digital inputs 1 – 6
2 DI1 Digital input 1
3 DI2 Digital input 2
4 DI3 Digital input 3
5 DI4 Digital input 4
6 DI5 Digital input 5
7 DI6 Digital input 6
8 -- --
9 A1 COM Alarm relay 1, common connector
10 A1 NO Alarm relay 1, normal open connector
11 A1 NC Alarm relay 1, normal closed connector
12 T2 Trip relay 2
13 T2 Trip relay 2
14 T1 Trip relay 1
15 T1 Trip relay 1
16 -- --
17 Uaux Auxiliary voltage
18 Uaux Auxiliary voltage
Terminal X6 with optional Arc Protection
No: Symbol Description
1 BI External arc light input
2 BO Arc output
3 COM Common for BI and BO
4 S1>+ Arc sensor 1, positive connector 
5 S1> Arc sensor 1, negative connector 
6 S2>+ Arc sensor 2, positive connector 
7 S2> Arc sensor 2, negative connector 
 Arc sensor itself is polarity free
Terminal X6 with DI19/DI20 option
No: Symbol Description
1 DI19 Digital input 19
2 DI19 Digital input 19
3 DI20 Digital input 20
4 DI20 Digital input 20
5 -- --
6 S1>+ Arc sensor 1, positive connector 
7 S1> Arc sensor 1, negative connector 
 Arc sensor itself is polarity free