Siemens Sivacon S8 Planning Information

Totally Integrated Power

SIVACON S8

Technical Planning Information · 10/2015

www.siemens.com/sivacon-s8

Qualifiziertes Personal

Qualified Personnel

The product/system described in this documentation may be operated only by personnel qualiﬁed for the speciﬁc task in accordance with the relevant documentation, in particular its warning notices and safety instructions. Qualiﬁed personnel are those who, based on their training and experience, are capable of identifying risks and avoiding potential hazards when working with these products/systems.

Proper use of Siemens products

Note the following:

WARNING, death or severe personal injury may result if proper precautions are not taken.

Siemens products may only be used for the applications described in the catalog and in the relevant technical documentation. If products and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and maintenance are required to ensure that the products operate safely and without any problems. The permissible ambient conditions must be complied with. The information in the relevant documentation must be observed.

Disclaimer of Liability

We have reviewed the contents of this publication to ensure consistency with the hardware and software described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the information in this publication is reviewed regularly and any necessary corrections are included in subsequent editions.

SIVACON S8

Technical Planning Information

System-based power distribution

SIVACON S8 – System overview

Circuit-breaker design

Universal mounting design

In-line design, plug-in

Cubicles in fixed-mounted design

Reactive power compensation

Further planning notes

Conforming to standards and design-verified

Technical annex

Glossary and rated parameters

SIVACON S8 Planning Principles –

Content

1 System-based power distribution 4

2 SIVACON S8 – System overview 8

2.1 System conﬁguration and cubicle design 10

2.2 Corner cubicle 15

2.3 Main busbar, horizontal 16

2.4 Connection points for earthing and short-circuit devices 17

2.5 Overview of mounting designs 18

3 Circuit-breaker design 22

3.1 Cubicles with one ACB (3WL) 24

3.2 Cubicles with up to three ACB (3WL) 29

3.3 Cubicles with one MCCB (3VL) 30

3.4 Cubicles for direct supply and direct feeder 31

4 Universal mounting design 34

4.1 Fixed-mounted design with compartment door 37

4.2 In-line switch-disconnectors with fuses (3NJ62 / SASIL plus) 38

4.3 Withdrawable design 38

5 In-line design, plug-in 50

5.1 In-line switch-disconnectors 3NJ62 with fuses 51

5.2 In-line switch-disconnectors SASIL plus

with fuses 53

8 Further planning notes 72

8.1 Installation 72

8.2 Weights and power loss 76

8.3 Environmental conditions 77

9 Conforming to standards and

design-veriﬁed 80

9.1 The product standard IEC 61439-2 80

9.2 Arc resistance 81

9.3 Seismic safety and seismic requirements 83

9.4 Declarations of conformity and certiﬁcates 85

10 Technical annex 92

10.1 Power supply systems according to their type of connection to earth 92

10.2 Loads and dimensioning 95

10.3 Degrees of protection according to

IEC 60529 97

10.4 Forms of internal separation based on

IEC 61439-2 98

10.5 Operating currents of three-phase

asynchronous motors 99

10.6 Three-phase distribution transformers 100

11 Glossary and rated parameters 102

11.1 Terms and deﬁnitions 102

11.2 Rated parameters 104

11.3 Index of tables 106

11.4 Index of ﬁgures 108

6 Cubicles in ﬁxed-mounted design 56

6.1 In-line design, ﬁxed-mounted 56

6.2 Fixed-mounted design with front cover 59

6.3 Cubicle for customized solutions 63

7 Reactive power compensation 66

7.1 Conﬁguration and calculation 68

7.2 Separately installed compensation cubicles 70

Chapter 1

System-based power distribution

1 System-based power distribution

PROFINET PROFIBUS ... Industrial Ethernet Modbus

≤ 110 kV

Process / Industrial automation Building automation

Consulting,

planning

OperationOrdering,

delivery

Engineering Service,

modernisation

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commissioning

Products, systems and solutions

Renewables

Automation

Power distribution

Operation

and

monitoring

Load

manage-

ment

Load

curves,

forecast

Generator

control

Switchboard

manage-

ment

Status

reporting/

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managem.

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Quality

Cost

center,

protocols

Mainte-

nance

Energy automation

Storage

technology

Medium-voltage

switchgear and

circuit protection

Transformer Low-voltage switchboard

including circuit protection

and measuring systems

Low voltage

distribution

When a power distribution concept is to be developed which includes dimensioning of systems and devices, its requirements and feasibility have to be matched by the end user and the manufacturer. We have prepared this planning manual for the SIVACON S8 low-voltage switchboard to support you with this task. Three principles must be observed for optimal power distribution:

• Safety - integrated

• Economic efficiency - right from the start

• Flexibility – through modularity

Comparable to a main artery, electric power supply constitutes the basis for reliable and efficient functioning of all electrically operated facilities. Electrical power distribution requires integrated solutions. Totally Integrated Power (TIP) is a synonym for integrated electrical power distribution (Fig. 1/1) in industrial applications, infrastructure projects and buildings.

SIMARIS planning tools

The SIMARIS planning tools by Siemens provide efficient support for dimensioning electric power distribution systems and determine the devices and distribution boards required for them.

• SIMARIS design for network calculation and dimensioning

• SIMARIS project for determining the space requirements of distribution boards and the budget, and for generating specifications (bills of quantities)

• SIMARIS curves for visualising characteristic tripping curves, cut-off current and let-through energy curves.

Further information about TIP:

www.siemens.com/tip

Further information about SIMARIS:

www.siemens.com/simaris

Fig. 1/1: Totally Integrated Power (TIP) as holistic approach to electric power distribution

SIVACON S8 Planning Principles – System-based power distribution

SIMARIS configuration tools

Tested safety

Configuring and dimensioning a low-voltage switchboard is very complex. SIVACON S8 switchboards are configured by experts, effectively supported by the SIMARIS configuration tools during the stages of switchboard manufacture, operation and maintenance:

• SIMARIS configuration for tender drawing up, order processing and manufacturing the SIVACON S8 switchboard

• SIMARIS control to efficiently create visualisation systems for operating and monitoring the SIVACON S8 switchboard

Cost-efficient complete system

The SIVACON S8 low-voltage switchboard sets new standards worldwide as power distribution board (PDB) or motor control center (MCC) for industrial applications or in infrastructure projects (Fig. 1/2). The switchboard system up to 7,000 A for easy and integrated power distribution ensures maximum personal safety and plant protection and provides many possibilities for use due to its optimal design. Its modular construction allows the switchboard to be optimally matched to any requirement when the whole plant is designed. Maximum safety and modern design now complement each other in an efficient switchboard.

SIVACON S8 is a synonym for safety at the highest level. The low-voltage switchboard is a design-verified low-voltage switchgear and controlgear assembly in accordance with IEC 61439-2. Design verification is performed by testing. Its physical properties were verified in the test area both for operating and fault situations. Maximum personal safety is also ensured by a test verification under arcing fault conditions in accordance with IEC/TR 61641.

Flexible solutions

The SIVACON S8 switchboard is the intelligent solution which adapts itself to your requirements. The combination of different mounting designs within one cubicle is unique. The flexible, modular design allows functional units to be easily replaced or added. All SIVACON S8 modules are subject to a continuous innovation process and the complete system always reflects the highest level of technical progress.

Further information about SIVACON S8:

www.siemens.com/sivacon-s8

Motor control center

Power distribution from the power center to the main and subdistribution board

Chemical & mineral oil industry

Fig. 1/2: SIVACON S8 for all areas of application

Power industry: Power plants and auxiliary systems

SIVACON S8 Planning Principles – System-based power distribution

Capital goods industry: Production-related systems

Infrastructure: Building complexes

Use

Advantages of modular design

SIVACON S8 can be used at all application levels in the low-voltage network (Fig. 1/3):

• Power center or secondary unit substation

• Main switchboard or main distribution board

• Subdistribution board, motor control center, distribution board for installation devices or industrial use

Power center

Every SIVACON S8 switchboard is manufactured of demand-oriented, standardised, and series-produced modules. All modules are tested and of a high quality. Virtually every requirement can be satisfied due to the manifold module combination possibilities. Adaptations to new performance requirements can easily and rapidly be implemented by replacing or adding modules.

The advantages offered by this modular concept are clear:

• Verification of safety and quality for every switchboard

• Fulfilment of each and every requirement profile combined with the high quality of series production

• Easy placement of repeat orders and short delivery time

Main distribution board

Subdistribution boards

Consumers load

Fig. 1/3: Use of SIVACON S8 in power distribution

SIVACON S8 Planning Principles – System-based power distribution

M M M

Motor control center (MCC)

Chapter 2

SIVACON S8 – System overview

2.1 System conﬁguration and cubicle design 10

2.2 Corner cubicle 15

2.3 Main busbar, horizontal 16

2.4 Connection points for earthing and short-circuit devices 17

2.5 Overview of mounting designs 18

2 SIVACON S8 – System overview

The interaction of the components described below results in an optimal low-voltage switchboard with advantages as regards:

Tab. 2/1: Technical data, standards and approvals for the SIVACON S8 switchboard

Standards and approvals

Standards and regulations Power switchgear and controlgear assembly

Approvals Europe

Technical data

Installation conditions Indoor installation, ambient temperature in the

Rated operating voltage (U

Dimensioning of creepage distances and clearances

Main busbars, horizontal Rated current Up to 7,010 A

Rated device currents Circuit-breakers Up to 6,300 A

Internal separation IEC 61439-2 Form 1 to form 4

IP degree of protection in accordance with IEC 60529 Ventilated up to IP43

Mechanical strength IEC 62262 Up to IK10

Dimensions Height (without base) 2,000, 2,200 mm

(design veriﬁcation)

Test of internal fault behaviour (internal arc) IEC/TR 61641

Induced vibrations IEC 60068-3-3

Protection against electric shock EN 50274 (VDE 0660-514)

Russia, Belarus, Kasakhstan China

Det Norske Veritas Lloyds Register of Shipping

Shell conformity "DEP Shell"

24-h mean

Main circuit

Rated impulse withstand voltage U

Rated insulation voltage (U

Degree of pollution 3

Rated peak withstand current (I

Rated short-time withstand current (I

Cable feeders Up to 630 A

Motor feeders Up to 630 A

BS EN 61439-2 Up to form 4 type 7

Height of base (optional) 100, 200 mm

Cubicle width 200, 350, 400, 600, 800, 850, 1,000, 1,200, 1,400 mm

Depth (single-front) 500, 600, 800, 1,000, 1,200 mm

)

• Safety - integrated

• Economic efficiency - right from the start

• Flexibility – through modularity

IEC 61439-2 DIN EN 61439-2-2 VDE 0660-600-2

DIN EN 60439-1 Supplement 2 VDE 0660-500 Supplement 2

IEC 60068-2-6 IEC 60068-2-57 IEC 60980 KTA 2201.4 Uniform Building Code (UBC), Edition 1997 Vol. 2, Ch. 19, Div. IV

CE marking and EC Declaration of Conformity EAC CCC

DNV GL Type Approval Certiﬁcate LR Type Approval Certiﬁcate

+ 35 °C (-5 °C to + 40 °C)

Up to 690 V (rated frequency fn 50 Hz)

imp

)

8 kV

1,000 V

Up to 330 kA

Up to 150 kA, 1s

Non-ventilated IP54

SIVACON S8 Planning Principles – SIVACON S8 – System overview

Enclosure Busbars Internal separation

Roof plate Main busbar (L1... L3, N) – top Device compartment/busbar compar tment

1 11 18

Rear panel Main busbar (L1... L3, N) – rear top Cubicle to cubicle

2 12 19

Design side panel Main busbar (L1... L3, N) – rear bottom Compartment to compartment

3 13 20

Frame Main busbar (PE) – bottom Cross-wiring compartment

4 14 21

Base cover

Base

Ventilated base compartment cover

Ventilated cubicle door

Compartment door

Head room door

Fig. 2/1: Cubicle design of SIVACON S8

Vertical distribution busbar system (L1... L3, N)

device compartment Vertical distribution busbar (PE)

cable connection compartment Vertical distribution busbar (N)

cable connection compartment

SIVACON S8 Planning Principles – SIVACON S8 – System overview

2.1 System conﬁguration and cubicle design

When the system configuration is planned, the following characteristics must be specified:

• Busbar position (top, rear top, rear bottom, or both rear top and rear bottom)

Tab. 2/2: Schematic overview of switchboard conﬁgurations for SIVACON S8

Busbar position

Top

Rear

Top Bottom Top and bottom

• Single-front or double-front design

• Cable/busbar entry (from the top or bottom)

• Connection in cubicle (front or rear)

B B B B

Single-front / double-front design

Single front Double front

B B

Side of connection

Operating panel

SIVACON S8 Planning Principles – SIVACON S8 – System overview

These characteristics depend on the type of installation among other things:

• Stand-alone

• At the wall (only for single-front design)

• Back to back (only for single-front design)

These determinations allow to specify cubicle design in more detail (Fig. 2/1, Tab. 2/2 and Tab. 2/3). Further information about the switchboard installation can be found in Chapter 8 “Further planning notes”.

Cable/busbar entry

From the bottom From the top

Connection in cubicle

Front Rear

Side of connection

Operating panel

SIVACON S8 Planning Principles – SIVACON S8 – System overview

Tab. 2/3: Cubicle types and busbar arrangement

Top busbar position

Busbar system Cubicle design

Busbar position

Rated current

Cable/busbar entry

Connection in cubicle

Top

Up to 3,270 A

Bottom

Front

500

800

N L3 L2 L1

500

N L3 L2 L1

Busbar position

Rated current

Cable/busbar entry

Connection in cubicle

Busbar position

Rated current

Cable/busbar entry

Connection in cubicle

Busbar position

Rated current

Cable/busbar entry

Connection in cubicle

Top

Up to 3,270 A

Top

Front or rear

Top

Up to 6,300 A

Bottom

Front

Top

Up to 6,300 A

Top

Front or rear

800

N L3 L2 L1

800

400

800

N L3 L2 L1

Device/functional compartment

SIVACON S8 Planning Principles – SIVACON S8 – System overview

Busbar compartment

Cable / busbar connection compartment

Cross-wiring compartment

1,200

Operating panels

Rear busbar position

Busbar system Cubicle design

Rear

Busbar position

Top or bottom

Top and bottom

Rated current

Cable/busbar entry

Connection in cubicle

Busbar position

Up to 4,000 A

Bottom or top

Front

Rear

Top or bottom

Rated current

Cable/busbar entry

Connection in cubicle

Up to 7,010 A

Bottom or top

Front

800

600

800

Busbar position

Rated current

Cable/busbar entry

Connection in cubicle

Busbar position

Rated current

Cable/busbar entry

Connection in cubicle

Device/functional compartment

Rear

Top or bottom

Top and bottom

Up to 6,300 A

Bottom or top

Front

Rear

Top or bottom

Up to 7,010 A

Bottom, top

Front

Busbar compartment

Cable / busbar connection compartment

1,000

1,200

Cross-wiring compartment

1,000

1,200

Operating panels

SIVACON S8 Planning Principles – SIVACON S8 – System overview

Tab. 2/4: Cubicle dimensions

Cubicle height

Frame 2,000, 2,200 mm

Base Without, 100, 200 mm

Cubicle width

Dependent of:

Cubicle depth

Type

Single front

Double front Rear

Frame height 2,200 mm

- Cubicle type

- Rated device current

- Connecting position and/or cable/busbar entry

Main busbar Cubicle depth

Location Rated current Front connection Rear connection

Top

Rear

Entry from the

bottom

3,270 A 500, 800 mm 800 mm 800 mm

6,300 A

4,000 A 600 mm 600 mm -

7,010 A 800 mm 800 mm -

4,000 A 1,000 mm 1,000 mm -

7,010 A

800, 1,000 mm 1,200 mm 1,200 mm

1,200 mm 1,200 mm -

Entry from the top

The cubicle dimensions listed in Tab. 2/4 do not factor in the enclosure parts and no outer built-on parts.

For the dimensions of the cubicles' enclosure parts, please refer to Fig. 2/2. For degrees of protection IPX1 and IPX3, additional ventilation roof panels are mounted on the cubicle.

The dimensions of the enclosure parts are within the required minimum clearances for erecting the switchboard. Doors can be fitted so that they close in escape direction.

9 mm

25 mm

Rear panel

Side panel with design strip

45 mm

Door

Width

Side panel

without

design strip

Depth

25 mm

The door stop can easily be changed later. The door hinges allow for a door opening angle of up to 180° in case of single installation of a cubicle and at least 125° when cubicles are lined up. For more details, please refer to Chapter 8 “Further planning notes”. The condition of surfaces of structural and enclosure parts is described in Tab. 2/5.

Tab. 2/5: Surface treatment

Surface treatment

Frame components Sendzimir-galvanised

Enclosure Sendzimir-galvanised / powder-coated

Doors Powder-coated

Copper bars

Colour

Powder-coated components

(layer thickness 100 ± 25 μm)

Design components Blue Green Basic

Bare copper, optionally silver-plated, optionally tin-plated

RAL7035, light grey (in accordance with DIN 43656) or upon request

Fig. 2/2: Dimensions of enclosure parts

SIVACON S8 Planning Principles – SIVACON S8 – System overview

2.2 Corner cubicle

The corner cubicle connects two segments, positioned at right angles to each other, of a switchboard in single-board design (Fig. 2/3). The corner cubicle contains as functional rooms only the busbar compartment and the cross-wiring compartment. These compartments cannot be accessed via doors. The frame width resp. frame depth of the cubicles are listed in Tab. 2/6.

Tab. 2/6: Dimensions of the corner cubicles

Operation panel

Fig. 2/3: Integration of the corner cubicle

Corner cubicle

Cubicle depth D

500 mm 600 mm

600 mm 700 mm

800 mm 900 mm

1,200 mm 900 mm

Frame width / depth W of the corner cubicle

SIVACON S8 Planning Principles – SIVACON S8 – System overview

2.3 Main busbar, horizontal

Tab. 2/7 lists the rating data for the two possibilities how to position the main busbar – top or rear – (Fig. 2/4). Chapter 10 describes how ambient temperatures must be observed in respect of the current carrying capacity.

Tab. 2/7: Rating of the main busbar

Top busbar position

Rated current I temperature

Ventilated Non-ventilated

at 35 °C ambient

Rated short-time withstand current

(1 s)

1,190 A 965 A 35 kA

1,630 A 1,310 A 50 kA

1,920 A 1,480 A 65 kA

2,470 A 1,870 A 85 kA

3,010 A 2,250 A 100 kA

3,270 A 2,450 A 100 kA

3,700 A

4,660 A

5,620 A

6,300 A

If circuit-breakers with a very high power loss are used, the

3,000 A

3,680 A

4,360 A

4,980 A

100 kA

150 kA

following correction factors must be applied: 3WL1350: 0.95 3WL1363: 0.88

Rear busbar position

Rated current In at 35 °C ambient temperature

Ventilated Non-ventilated

Rated short-time withstand current

(1 s)

1,280 A 1,160 A 50 kA

1,630 A 1,400 A 65 kA

2,200 A 1,800 A 65 kA

2,520 A 2,010 A 85 kA

2,830 A 2,210 A 100 kA

3,170 A 2,490 A 100 kA

4,000 A 3,160 A 100 kA

4,910 A

5,340 A

5,780 A

7,010 A

When operating two systems per cubicle at the same time

3,730 A

4,080 A

4,440 A

5,440 A

100 kA

150 kA

(busbar position rear top and rear bottom), a reduction factor has to be considered:: for ventilated boards: 0,94 for unventilated boards: 0,98

Busbar position rear top or rear bottom

Fig. 2/4: Variable busbar position for SIVACON S8

SIVACON S8 Planning Principles – SIVACON S8 – System overview

2.4 Connection points for earthing

and short-circuit devices

Short-circuiting and earthing devices (SED)

For short-circuiting and earthing, short-circuiting and earthing devices (SED) are available. For mounting the SED, appropriate fastening points are fitted at the points to be earthed. To accommodate the SED for the main busbar, a cubicle for customized solutions is inserted (see Chapter

6.3 “Cubicle for customized solutions”). The cubicle widths

are given in Tab. 2/8.

Central earthing point (CEP) and main earthing busbar (MEB)

When voltage sources, which are located far apart, are earthed, for example secondary unit substation and standby generator set, the separate earthing of their neutral points results in compensating currents through foreign conductive building structures. Undesired electro-magnetic interference is created, caused by the building currents on the one hand and the lack of summation current in the respective cables on the other.

If the requirement is parallel operation of several voltage sources and if building currents shall be reduced as far as possible, the preferable technical solution is implementing the central earthing point (CEP). In this case, the neutral points of all voltage sources are connected to the system protective conductor / system earth at a single point only. The effect is that despite potential differences of the neutral points, building currents cannot be formed any more.

Tab. 2/8: Cubicle widths for earthing short-circuit points

The central earthing point can only be used in the power supply system L1, L2, L3, PEN (insulated) + PE. To implement the central earthing point (CEP) - with or without a main earthing busbar (MEB) - a cubicle for customized solutions is inserted (see Chapter 6.3 “Cubicle for customized solutions”).

CEP design

The CEP is designed as a bridge between the separately wired (insulated) PEN and the PE conductor of the switchboard. Measuring current transformers can be mounted on the bridge for residual current measurements. In order to be able to remove the current transformer in case of a defect, a second, parallel bridge is provided. This prevents cancelling the protective measure due to a missing connection between the separately wired PEN and PE conductor.

A mounting plate in the cubicle is provided for placing the residual-current monitors. The cubicle widths are given in Tab. 2/8.

MEB design

In addition to the central earthing point, the MEB can optionally be mounted as a horizontal bar. This connecting bar is separately installed in the cubicle and rigidly connected to the PE conductor. Depending on how the cable is entered, the MEB is installed at the top or bottom of the cubicle. The cubicle widths can be found in Tab. 2/8 and information about the cable terminals can be found in Tab. 2/9.

Tab. 2/9: Cable terminal for the main earthing busbar

Earthing and shortcircuit points

Short-circuiting and earthing devices (SED)

Central earthing point (CEP)

Main earthing busbar (MEB)

Cubicle widths

400 mm (200 mm as cubicle extension)

600 mm, 1,000 mm (200 mm as cubicle extension)

600 mm, 1,000 mm

Cubicle width

600 mm 10 x 185 mm

1,000 mm 20 x 185 mm2 (M10) + 22 x 240 mm2 (M12)

300 mm² cable lugs can be used with M12 screw, but this cable lug does not comply with DIN 46235, although it is supplied by some manufacturers.

SIVACON S8 Planning Principles – SIVACON S8 – System overview

Max. number of cables connectible with cable lug DIN 46235 (screw)

(M10) + 12 x 240 mm2 (M12)

2.5 Overview of mounting designs

Tab. 2/10: Basic data of the different mounting designs

Circuit-breaker design Universal mounting design In-line design, plug-in Fixed-mounted design

Mounting design

Functions

Rated current I

Connection type Front and rear side Front and rear side Front side Front side Front side Front side

Cubicle width 400, 600, 800, 1,000, 1,400 mm 600, 1,000, 1,200 mm 1,000, 1,200 mm 1,000, 1,200 mm 600, 800, 1,000 mm 800 mm

Internal separation Form 1, 2b, 3a, 4b, 4 type 7 (BS) Form 3b, 4a, 4b, 4 type 7 (BS) Form 3b, 4b Form 1, 2b, 3b, 4a, 4b Form 1, 2b Form 1, 2b

Busbar position Rear, top Rear, top Rear, top Rear, top Rear Rear, top, without

SIVACON S8 Planning Principles – SIVACON S8 – System overview

Withdrawable design Fixed mounted design

Incoming unit Outgoing unit Coupler

Up to 6,300 A Up to 630 A Up to 630 A Up to 630 A Up to 630 A

Withdrawable design Fixed-mounted design with compartment doors Plug-in design

Cable feeders Motor feeders (MCC)

Plug-in design Fixed-mounted design with front covers Fixed mounted design Fixed mounted design

Cable feeders Cable feeders Cable feeders Central compensation of reactive power

In-line design, ﬁxed-mounted

Reactive power compensation

Non-choked up to 600 kvar Choked up to 500 kvar

SIVACON S8 Planning Principles – SIVACON S8 – System overview

Chapter 3

Circuit-breaker design

3.1 Cubicles with one ACB (3WL) 24

3.2 Cubicles with up to three ACB (3WL) 29

3.3 Cubicles with one MCCB (3VL) 30

3.4 Cubicles for direct supply and direct feeder 31

3 Circuit-breaker design

The cubicles for 3W. and 3V. circuit-breakers ensure both personal safety and long-term operational safety (Fig. 3/1). The incoming, outgoing and coupling units in circuit-breaker design are equipped with 3W. air circuit-breakers (ACB) in withdrawable or fixed-mounted design or alternatively with 3V. moulded-case circuit-breakers (MCCB) (Tab. 3/1).

The cubicle dimensions are tailored to the circuit-breaker sizes and can be selected according to the individual requirements. The circuit-breaker design provides optimal connect conditions for every nominal current range. In addition to cable connections, the system also provides design-verified connections to SIVACON 8PS busbar trunking systems.

Fig. 3/1: Cubicles in circuit-breaker design

SIVACON S8 Planning Principles – Circuit-breaker design

Tab. 3/1: General cubicle characteristics in circuit-breaker design

Application range

Degrees of protection - Up to IP43 Ventilated

Form of internal separation - Form 1, 2b Door cubicle high

Design options - Air circuit-breaker (ACB) in ﬁxed-mounted or withdrawable design

Also form 4b type 7 in acc. with BS EN 61439-2 possible

Information about 3WT circuit-breakers is available from your Siemens contact

Information about moulded-case circuit-breakers in plug-in/withdrawable design is available from your Siemens contact

The circuit-breaker cubicles allow the installation of a current transformer (L1, L2 and L3) at the customer connection side. Information about the installation of additional transformers is available from your Siemens contact.

Cubicle with forced cooling

The circuit-breaker cubicles with forced cooling are equipped with fans (Fig. 3/2). Controlled fans are installed in the cubicle front below the circuit-breaker. The forced cooling makes for an increase of the rated current of the circuit-breaker cubicle. The other cubicle characteristics are identical to the cubicle without forced cooling.

- Incoming circuit-breakers

- Coupling circuit-breakers (longitudinal and transverse couplers)

- Outgoing circuit-breakers

- Direct incoming/outgoing feeders (without circuit-breakers)

- IP54 Non-ventilated

- Form 3a, 4b

- Moulded-case circuit-breaker (MCCB) in ﬁxed-mounted design

Door divided in 3 parts

The fan control comes completely configured. No further settings are required upon start-up of the switchboard. The fans are dimensioned such that the required cooling is still ensured if a fan fails. Failure of the fan or non-permissible temperature rises are signalled. Forced cooling is available for selected ACB (3WL) in withdrawable design.

The use of fans brings about additional noise emission. Under normal operating conditions, the noise emission may be 85 dB at the maximum. Higher noise emissions only occur in the case of a fault.

Observing local regulations on noise protection and occupational safety and health is mandatory. Rating data for cubicles with forced cooling is available from your Siemens contact.

Fig. 3/2: Forced cooling in a circuit-breaker cubicle

SIVACON S8 Planning Principles – Circuit-breaker design

3.1 Cubicles with one ACB (3WL)

The widths for the different cubicle types are listed by ACB type in Tab. 3/2 to Tab. 3/4.

Tab. 3/2: Cubicle dimensions for top busbar position

Cubicle type

ACB type

Nominal device

Cubicle width in mm

current

Incoming / outgoing unit

Cable connection Busbar connection

3-pole 4-pole 3-pole 4-pole

3WL1106 630 A 400/600 600 - -

3WL1108 800 A 400/600 600 - -

3WL1110 1,000 A 400/600 600 - -

3WL1112 1,250 A 400/600 600 - -

Top busbar position, cable / busbar entry from the top or bottom

3WL1116 1,600 A 400/600 600 400/600 600

3WL1120 2,000 A 400/600 600 400/600 600

3WL1220 2,000 A 600/800 800 600/800 800

3WL1225 2,500 A 600/800 800 600/800 800

3WL1232 3,200 A 600/800 800 600/800 800

800 1,000 800 1,000

The position of the connecting bars is identical for cable entry from the top or bottom

3WL1340 4,000 A

3WL1350

3WL1363

5,000 A 2)- - 1,000 1,000

6,300 A 2)- - 1,000 1,000

Longitudinal coupler 3-pole 4-pole

3WL1106 630 A 600 800 - -

3WL1108 800 A 600 800 - -

3WL1110 1,000 A 600 800 - -

3WL1112 1,250 A 600 800 - -

3WL1116 1,600 A 600 800 - -

Top busbar position

3WL1120 2,000 A 600 800 - -

3WL1220 2,000 A 800 1,000 - -

3WL1225 2,500 A 800 1,000 - -

3WL1232 3,200 A 800 1,000 - -

1,000 1,200 - -

Withdrawable design, frame height 2,200 mm

Main busbar up to 6,300 A

3WL1340 4,000 A

3WL1350

3WL1363

5,000 A 2)1,200 1,200 - -

6,300 A 2)1,200 1,200 - -

SIVACON S8 Planning Principles – Circuit-breaker design

Tab. 3/3: Cubicle dimensions for rear busbar position

Cubicle type

Incoming / outgoing unit

1 busbar system in the cubicle:

rear top busbar position and cable / busbar entry from the bottom

rear bottom busbar position and cable / busbar entry from the top

1 busbar system in the cubicle:

rear bottom busbar position and cable / busbar entry from the bottom

rear top busbar position and cable / busbar entry from the top

Longitudinal coupler 3-pole 4-pole

1 busbar system in the cubicle:

rear top busbar position

rear bottom busbar position

Withdrawable design, frame height 2,200 mm

Main busbar up to 7,010 A

Frame height 2,200 mm

ACB type

3WL1106 630 A 400/600 600 - -

3WL1108 800 A 400/600 600 - -

3WL1110 1,000 A 400/600 600 - -

3WL1112 1,250 A 400/600 600 - -

3WL1116 1,600 A 400/600 600 400/600 600

3WL1120 2,000 A 400/600 600 400/600 600

3WL1220 2,000 A 600/800 800 600/800 800

3WL1225 2,500 A 600/800 800 600/800 800

3WL1232 3,200 A 600/800 800 600/800 800

3WL1340 4,000 A 1,000 1,000

3WL1350

3WL1363

3WL1106 630 A 400/600 600 - -

3WL1108 800 A 400/600 600 - -

3WL1110 1,000 A 400/600 600 - -

3WL1112 1,250 A 400/600 600 - -

3WL1116 1,600 A 400/600 600 400/600 600

3WL1120 2,000 A 400/600 600 400/600 600

3WL1220 2,000 A 600/800 800 600/800 800

3WL1225 2,500 A 600/800 800 600/800 800

3WL1232 3,200 A 600/800 800 600/800 800

3WL1340 4,000 A - -

3WL1106 630 A 600 600 - -

3WL1108 800 A 600 600 - -

3WL1110 1,000 A 600 600 - -

3WL1112 1,250 A 600 600 - -

3WL1116 1,600 A 600 600 - -

3WL1120 2,000 A 600 600 - -

3WL1220 2,000 A 800 800 - -

3WL1225 2,500 A 800 1,000 - -

3WL1232 3,200 A 800 1,400 - -

3WL1340 4,000 A 1,000 1,000 - -

3WL1350

3WL1363

Nominal device current

5,000 A 2)- - 1,000 1,000

6,300 A 2)- - 1,000 1,000

5,000 A 2)1,400 1,400 - -

6,300 A 2)1,400 1,400 - -

Cubicle width in mm

Cable connection Busbar connection

3-pole 4-pole 3-pole 4-pole

8001)/1,000

8003)/1,000

1,000

SIVACON S8 Planning Principles – Circuit-breaker design

Tab. 3/4: Cubicle dimensions for rear busbar position with two busbar systems in the cubicle

Cubicle type

ACB type

Nominal device

Cubicle width in mm

current

Incoming / outgoing unit

2 busbar systems in the cubicle:

rear top busbar position and cable / busbar entry from the bottom

rear bottom busbar position and cable / busbar entry from the top

2 busbar systems in the cubicle:

rear bottom busbar position and cable / busbar entry from the bottom

rear top busbar position and cable / busbar entry from the top

3WL1106 630 A 400/600 600 - -

3WL1108 800 A 400/600 600 - -

3WL1110 1,000 A 400/600 600 - -

3WL1112 1,250 A 400/600 600 - -

3WL1116 1,600 A 400/600 600 400/600 600

3WL1120 2,000 A 400/600 600 400/600 600

3WL1220 2,000 A 600/800 800 600/800 800

3WL1225 2,500 A 600/800 800 600/800 800

3WL1232 3,200 A 600/800 800 600/800 800

3WL1340 4,000 A 1,000 1,000

3WL1106 630 A 400/600 600 - -

3WL1108 800 A 400/600 600 - -

3WL1110 1,000 A 400/600 600 - -

3WL1112 1,250 A 400/600 600 - -

3WL1116 1,600 A 400/600 600 400/600 600

3WL1120 2,000 A 400/600 600 400/600 600

3WL1220 2,000 A 600/800 800 600/800 800

3WL1225 2,500 A 600/800 800 600/800 800

3WL1232 3,200 A 600/800 800 600/800 800

3WL1340 4,000 A - -

Cable connection Busbar connection

3-pole 4-pole 3-pole 4-pole

Longitudinal coupler 3-pole 4-pole

3WL1106 630 A 600 600 - -

3WL1108 800 A 600 600 - -

2 busbar systems in the cubicle:

rear top busbar position

rear bottom busbar position

3WL1110 1,000 A 600 600 - -

3WL1112 1,250 A 600 600 - -

3WL1116 1,600 A 600 600 - -

3WL1120 2,000 A 600 600 - -

3WL1220 2,000 A 800 800 - -

3WL1225 2,500 A 800 800 - -

3WL1232 3,200 A 800 800 - -

3WL1340 4,000 A 1,000 1,000 - -

Transverse coupler 3-pole 4-pole

3WL1106 630 A 400/600 600 - -

3WL1108 800 A 400/600 600 - -

2 busbar systems in the cubicle:

rear top busbar position

and

rear bottom busbar position

3WL1110 1,000 A 400/600 600 - -

3WL1112 1,250 A 400/600 600 - -

3WL1116 1,600 A 400/600 600 - -

3WL1120 2,000 A 400/600 600 - -

3WL1220 2,000 A 600/800 800 - -

3WL1225 2,500 A 600/800 800 - -

3WL1232 3,200 A 600/800 800 - -

3WL1340 4,000 A 1,000 1,000 - -

Frame height 2,200 mm

8001)/1,000

1,000

SIVACON S8 Planning Principles – Circuit-breaker design

Cable and busbar connection

Short-circuiting and earthing device (SED)

The number of connectible cables, as stated in Tab. 3/5, may be restricted by the available roof/floor panel openings and/or door installations. The position of the connecting bars is identical for front or rear connection in the cubicle.

Connection to the SIVACON 8PS busbar trunking system is effected by means of an installed busbar trunking connector. The SIVACON S8 connecting system is located completely within the cubicle. The busbars can be connected both from the top and from the bottom, thus allowing flexible connection. The factory-provided copper plating guarantees high short-circuit strength, which is verified by a design test, as is the temperature rise limits.

Tab. 3/5: Cable connection for cubicles with 3WL

Max. number of cables connectible per phase

Cable lug DIN 46235 (240 mm2, M12)

It is possible to use 300 mm2 cable lugs with a M12 screw, but this cable lug is not in compliance with DIN 46235, although it is supplied by

some manufacturers

5,000 A and 6,300 A circuit-breakers with busbar connection

dependent on breaker size

3WL11 up to 1,000 A

4 6 6 12 14

3WL11 1,250 to 2,000 A

For short-circuiting and earthing, short-circuiting and earthing devices (SED) are available for the circuit-breaker cubicle. Suitable mounting points are affixed to the points to be earthed, which ease SED installation.

3WL12 up to 1,600 A

3WL12 2,000 to 3,200 A

3WL13 up to 4,000 A

SIVACON S8 Planning Principles – Circuit-breaker design

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Siemens Sivacon S8 Planning Information

Specifications and Main Features

Frequently Asked Questions

User Manual