SIVACON S8 – standard-compliant, design
verified low-voltage power distribution board, the low voltage power distribution board that sets new standards

- Cost – efficient system

The SIVACON® S8 low-voltage power distribution board sets new standards as a power distribution board or Motor Control Center (MCC) for industrial applications or in infrastructure. The power distribution board system up to 7,000 A for the simple and consistent distribution of power guarantees maximum personal and system safety and, thanks to its  optimal design, offers a wide range of possible uses. Thanks to the modular technology, the power distribution board can be optimally adapted to every requirement when designing the complete system. With its combination of maximum safety and a modern design, the system offers a highly cost-efficient solution.

- Tested safety

SIVACON S8 stands for the highest level of safety. The low-voltage power distribution board is a design-tested power switchgear and controlgear assembly with a design verification based on testing. Evidence of its physical properties has been provided in the product testing department under both operating and fault conditions. An arcing-resistant  locking system also ensures maximum personal safety. Furthermore, even with the standard design, verification of testing under arcing conditions is in accordance with IEC 61641.

- Flexible solutions

The SIVACON S8 low-voltage power distribution board is the intelligent solution which can be adapted to match your requirements. The section, either single- or double-fronted, can be installed together with a main busbar system or back-to-back with a separate main busbar system. Different installation designs can be combined in one section with ease. The flexible, modular technology allows for the simple exchange or addition of functional units. The SIVACON S8 modular components undergo a continuous innovation process, thereby ensuring the highest possible level of technical progress for the complete system.



Sivacon S8 MCB


Sivacon S8 MCB Front 


Circuit breaker system

Universal installation system

Fixed-mounted system

3NJ6 in-line system

3NJ4 in-line system

Reactive power compensation

Installation systems

Fixed-mounted design

Withdrawable design

Withdrawable unit design

Fixed-mounted design with compartment doors

Plug-in design

Fixed-mounted design

with front covers

Plug-in design

Fixed-mounted design

Fixed-mounted design





Cable feeders

Motor outgoing feeders (MCC)

Cable feeders

Cable feeders

Cable feeders

Central reactive power compen-sation

Rated current In

up to 6,300 A

up to 630 A

up to 250 kW

up to 630 A

up to 630 A

up to 630 A

unchoked up to 600 kvar

choked up to
500 kvar

Connection position

front or rear

front or rear





Section width (mm)

400 • 600 • 800 • 1,000 • 1,400

600 • 1,000 • 1,200

1,000 • 1,200

1,000 • 1,200

600 • 800 • 1,000


Internal separation

Form 1*, 2b, 3a, 4b, 4 Type 7 (BS)

Form 2b, 3b, 4a, 4b, 4 Type 7 (BS)

Form 1*, 2b, 3b, 4a, 4b

Form 1*, 3b, 4b

Form 1*, 2b

Form 1*, 2b

Busbar position







Sivacon S8 Exploded



Rated insulation voltage (Ui)                   Main circuit

Rated operating voltage (Ue)                  Main circuit

up to 1000 V

up to 690 V

Clearances and creepage distances         Rated impulse withstand voltage Uimp                                                                     8 kV


Overvoltage category                                                                                                 III

Pollution degree                                                                                                       3


(3-pole and 4-pole)

Main busbars horizontal

Rated current                                                      up to 7010 A

Rated peak withstand current (Ipk)                      up to 330 kA Rated short-time withstand current (Icw)            up to 150 kA, 1s

Vertical busbars

for circuit breaker design

Rated current

Rated peak withstand current (Ipk) Rated short-time withstand current (Icw)

up to 6300 A up to 220 kA

up to 100 kA, 1s

Vertical busbars

for universal mounting and

fixed-mounted design

Rated current

Rated peak withstand current (Ipk) Rated short-time withstand current (Icw)

up to 1600 A up to 143 kA

up to 65 kA *, 1s

Vertical busbars

for 3NJ4 in-line design (fixed-mounted)

Rated current

Rated conditional short-circuit current (Icc)

up to 1600 A

up to  50 kA, 1s

Vertical busbars

for 3NJ6 in-line design (plug-in)

Rated current

Rated peak withstand current (Ipk) Rated short-time withstand current (Icw)

up to 2100 A up to 105 kA

up to 50 kA *, 1s

Device rated currents

3WL/3VL circuit breakers                                    up to 6300 A

Outgoing feeders                                                 up to  630 kA

Internal separation                                 Form 1 to Form 4

IEC 60439-1, Section 7.7,

VDE 0660 Part 500, 7.7

Surface treatment                                   (Paint finish in acc. with DIN 43656)

Cubicle parts Doors

Side panels

Rear panels, top plates Venting roof

Standard colour of powder- coated parts

(coat thickness 100 ± 25 µm)


Sendzimir-galvanised Powder-coated Powder-coated Sendzimir-galvanised Powder-coated


RAL 7035, light grey

Design parts: Blue green basic

Degree of protection                               In acc. with IEC 60529, EN 60529

IP30, IP31,IP40,IP41,IP42,IP54

Dimensions                                             (Preferred dimensions in acc. with DIN 41488)

Height (without base):                                             2000, 2200 mm

Width:                             200, 350, 400, 600, 800, 850 1000, 1200 mm

Depth:   Single front                                           500, 600, 800 mm

Double front                                            1000, 1200 mm

Power loss for main/sub-distribution board

Power loss per section                                          approx. 600 W when combining different sections (PV)