Appendix
A.1 The article number system
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
Manual, 10/2018, L1V30499596002-01
267
Position 10: ETU
Switch disconnector:
A
ETU320:
B
ETU650:
E
ETU350:
C
ETU660:
F
ETU360:
D
Example article number, ETU660:
3
W
L
1
0
1
0
-
2
C
F
Position 11: Number of poles, neutral conductor, and installation type
3 poles / fixed-mounted breaker:
0
3 poles / withdrawable breaker: 3
4 poles, neutral left / fixed-mounted breaker: 1 4 poles, neutral left / withdrawable breaker:
4
4 poles, neutral right / fixed-mounted breaker:
2
4 poles, neutral right / withdrawable breaker: 5
Example article number, 4 poles, neutral left / withdrawable breaker:
3
W
L
1
0
1
0
-
2
C
F
4
Position 12: Connection technology
3WL10
Withdrawable breaker version without guide frame:
0
Orientable, rear connection - mounted vertically (fixed / withdrawable breaker):
1
Orientable, rear connection - mounted horizontally (fixed / withdrawable breaker):
2
Front connection (fixed-mounted breaker) or flange (withdrawable breaker):
3
Circular conductor terminal for copper/aluminum cable (fixed / withdrawable brea-
ker):
4
Front connection bar, extended (withdrawable breaker):
5