Vertical Connections - Siemens UL 1066 Operating Instructions Manual

5.2 Main terminal connections
For main terminal dimensions of individual frame sizes, refer to:
The main terminals and connectors are intended for busbar connection with NEMA hole patterns.
The number and size of the busbars connected to the circuit breaker must be selected per ANSI C.37.20.1 in order to meet the test require-
ments according to ANSI C.37.51 depending on the rated current, defined by the rating plug. Different bussing in a given frame size may be
applicable.
5.2.1 Cradle connections
Drawout Circuit breaker
Frame Size
800 A / 1600 A
II
III 4000 A / 5000 A
1) The terminal permits the use of 2" x ¼" busbars is possible.
2) The terminal permits the use of 4" x ¼" busbars is possible.
5.2.2 Horizontal connections for 4-pole fixed mount breakers
Fixed mount Circuit Breaker
Frame Size
II 800 A / 1600 A / 2000 A
1) The terminal permits the use of 2" x ¼" busbars is possible.
5.2.3 Vertical connections for 4-pole fixed mount breakers
Fixed mount Circuit Breaker
Frame Size
II 800 A / 1600 A / 2000 A
II
III 4000 A / 5000 A
1) The terminal permits the use of 2" x ¼" busbars is possible.
2) The terminal permits the use of 4" x ¼" busbars is possible.
3) The FSII 3200 A and FSIII 4000 A, 5000A require vertical connectors.
Number of Available Busbar
I
n max
Mounting Positions
2000 A
3200 A
Number of Available Busbar
I
n max
Mounting Positions
Number of Available Busbar
I
n max
Mounting Positions
3)
3200 A
3)
 Frame sizes / dimension drawings (page 7-1)
Connections to Line/Load side cradle connectors
Busbar cross-section
1 - 3
2 - 4
3 - 5
5 - 7
Connection to Line/Load side horizontal terminals
Busbar cross-section
1 - 4
Connection to Line/Load side terminals with vertical connectors
Busbar cross-section
1 - 4
1 - 4
5 - 7
Number of holes
1)
4" x ¼"
2)
5" x ¼"
Number of holes
1)
4" x ¼"
Number of holes
1)
4" x ¼"
1)
4" x ¼"
2)
5" x ¼"
4
6
2
2
2
6
5 – 5