Their sizing must
be carefully studied the switchgear designer. Some examples possible constructions are given this paragraph.5. 16
Positioning the first anchoring baffle the busbars according the short-circuit current
A rin itch gear
P E3-E4-E6
VERTICAL 250 150
Fig.1 Examples positioning the connection busbars according the terminals
The connection busbars enable the connection between the terminals the circuit-breakers and the busbars the switchgear. The various types terminals
are constant dimensions for each size circuit-breaker: normally advisable exploit the whole contact surface the terminal, the width
of the connection busbars should the same that the terminal.
Vertical terminals
Circuit-breaker [A] Continuous current-
carrying capacity [A]
45°C 55°C
Busbar cross-section
[m 2]
E2B 800 s00 800 800 1x(60x10)
E2B 1000 1000 1000 1000 1x(80x10)
E2B 1250 1250 1250 1250 1x(80x10)
E2B/N 1600 1600 1600 1600 2x(60x10)
E3N 800 s00 800 800 1x(60x10)
E3N 1000 1000 1000 1000 1x(80x10)
E3N 1250 1250 1250 1250 1x(80x10)
E3N/H 1600 1600 1600 1600 2x(60x10)
E3N/H 2000 2000 2000 2000 3x(60x10)
E3N/H 2500 2500 2a00 2a00 (100x 10)
E4S 1600 1600 1600 1600 2x(60x10)
E4S 2000 2000 2000 2000 3x(60x10)
E4S 2500 2500 2a00 2a00 3x(60x10)
E4S/H 3200 3200 3200 3200 3x(100x10)
E6H 3200 3200 3200 3200 3x(100x10)
E6H 4000 4000 4000 4000 4x(100x10)
E6H 5000 5000 a000 4600 (100x 10)
Fig. 1y
Model y
A pparatus Emax DC
S cale
D oc-N 1SDH000635R0002
Page No. some cases, reductions the width the connection relation that
of the terminal are allowable shown the following examples.
10/108
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