ABB | SACE Emax 2
Emax E2.2-E4.2-E6.2 circuit-breakers | 6 - Installation
27 | © 2013
ABB |
1SDH001000R0002 - L7804
Connection to the power circuit
The connection of a circuit-breaker to the power circuit is performed using the connection
busbars of the electric switchgear fixed to the terminals of the circuit-breaker. The sizing of the
busbars is specified by the designer of the electrical switchgear.
Figure 58
IMPORTANT: it is possible to obtain
different capacities for the
connections by altering the
thickness and number of busbars
in parallel.
The following table provides some examples of the amount and sizes of the connections that
can be used for each type of circuit-breaker:
Circuit-breaker
Iu (A)
Dimension of
busbars
Horizontal
terminals
Vertical
terminals
E2.2 N S H
800
1x50x10
yes
yes
E2.2 N S H
1000
2x50x5
yes
yes
E2.2 N S H
1250
2x50x10
yes
yes
E2.2 B N S H
1600
2x60x10
yes
-
1x100x10
-
yes
E2.2 B N S H
2000
3x60x10
yes
-
2x80x10
-
yes
3x60x10*
yes
-
2x80x10*
-
yes
E2.2 N S H
2500
3x60x10
yes
-
4x100x5
-
yes
3x60x10*
yes
-
4x100x5*
-
yes
E4.2 V
2000
2x80x10
yes
yes
E4.2 V
2500
2x100x10
yes
yes
E4.2 N S H V
3200
3x100x10
yes
yes
E4.2 N S H V
4000
4x100x10
yes
yes
E6.2 H V X
4000
4x100x10
yes
yes
E6.2 H V X
5000
5x100x10
yes
yes
E6.2 H V X
6300
7x100x10
yes
yes
(*): values for spread terminals
Continued on the next page