ABB Sace Emax 2 Installation, Operation And Maintenance Instructions For The Installer And The User page 27

Connection to the power
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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
circuit
the designer of the electrical switchgear.
Figure 64
IMPORTANT: it is possible to obtain different capacities for the connections by altering
the thickness and number of busbars in parallel.
The following tables provide some examples of the quantity and the sizes of the connections that can be
used for each type of circuit-breaker:
circuit-breaker IEC
60947
E1.2
E1.2
E1.2
E1.2
E1.2
circuit-
breaker UL Iu (A)
1066
E1.2-A 800
E1.2-A 1200
Figure 65
Dimension of busbars (mm)
Iu (A)
Horizontal terminals
630 2x40x5
800 2x50x5
1000 2x50x10
1250 2x50x10
1600 3x50x8
Horizontal terminals
Dimension of busbars
Q.ty
(in)
2 1/4 x 2
4 1/4 x 2
ABB | SACE Emax 2
Vertical terminals
2x40x5
2x50x5
2x50x8
2x50x8
2x50x10
Vertical terminals
Dimension of busbars
Q.ty
(in)
1 1/4 x 3
2 1/4 x 3
Continued on the next page
Management operations | 5 - Installation