Technical information

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H
3
H
1
H
2
1SDC210033D0202
Accessories
Mechanical Accessories
Plug-in and withdrawable versions
Fixed part of plug-in and withdrawable version circuit-breakers are normally suplied with extended
front terminals (EF) or horizontal/vertical rear terminals (HR/VR).
The terminals are factory-mounted in the horizontal position. In case of need, the Customer can
easily rotate the terminals into the vertical position.
A fixed part with front terminals (EF) can be converted into a fixed part with rear terminals (HR/VR)
by ordering the appropriate terminal kit. The fixed parts can also be fitted with the same types of
terminals available on the fixed circuit-breaker after an adapter has been installed on the terminal
zone of the fixed part itself. Consequently, the following types of connection terminals are also avail-
able for the fixed part:
Q
extended spread front (ES);
Q
for copper-aluminium cables (FCCuAI);
Q
for copper cables (FCCu);
Q
for flexible busbars (FB);
Q
multi-cable (MC).
The adapter reproduces the terminal zone of the fixed circuit-breaker. This means that fixed parts
can also be equipped with the same terminal covers and phase separators as those used for fixed
circuit-breakers.
Fixed part adapter
Fixing at 50mm
Fixing at 70mm
Fixed part adapter
Circuit- breakers H
1
fixed part
[mm]
H
2
circuit-breaker
[mm]
H
3
fixed part
with two adapters
[mm]
XT1 146 134 181
XT2 153 134 188
XT3 166 154 225
XT4 182 164 228