Siemens Sivacon S8 Planning Information

74
SIVACON S8 Planning Principles – Further planning notes
One or more double-front units can be combined into a
transport unit. Cubicles within a transport unit have a
horizontal through-busbar. Cubicles cannot be separated.
Apart from the following exceptions, a cubicle composition
within a double-front unit is possible for all designs.
The following cubicles determine the width of the dou-
ble-front unit as cubicle (1) and should only be combined
with a cubicle for customized solutions without cubicle bus-
bar system:
• Circuit-breaker design - longitudinal coupler
• Circuit-breaker design - incoming/outgoing feeder
4,000 A, cubicle width 800 mm
• Circuit-breaker design - incoming/outgoing feeder
5,000 A
• Circuit-breaker design - incoming/outgoing feeder
6,300 A
Cubicles with a width of 350 mm or 850 mm are not pro-
vided for within double-front systems.
Single-front and double-front systems
In the single-front system, the switchboard cubicles stand
next to each other in a row (Fig. 8/4 top). One or more
cubicles can be combined into a transport unit. Cubicles
within a transport unit have a horizontal through-busbar.
Cubicles cannot be separated.
In the double-front system, the cubicles stand in a row next
to and behind one another (Fig. 8/4). Double-front systems
are only feasible with a rear busbar position. The main
feature of a double-front installation is its extremely eco-
nomical design: the branch circuits on both operating
panels are supplied by one main busbar system only.
A double-front unit consists of a minimum of two and a
maximum of four cubicles. The width of the double-front
unit is determined by the widest cubicle (1) within the
double-front unit. This cubicle can be placed at the front or
rear side of the double-front unit. Up to three more cubicles
(2), (3), (4) can be placed at the opposite side. The sum of
the cubicle widths (2) to (4) must be equal to the width of
the widest cubicle (1).
Fig. 8/4: Cubicle arrangement for single-front (top) and double-front systems (bottom)
Double-front units
Double-front installations
With main busbar
position at the rear
Single-front installations
With main busbar
position at the top
With main busbar
position at the rear
Front
connection
Rear
connection
Rear panel Door
(1)
(3)(2) (4)
(1)
(3)(2) (4)

Siemens Sivacon S8 Specifications

General

Brand	Siemens
Model	Sivacon S8
Category	Industrial Equipment
Language	English