| Circuit breaker system | Universal installation system | Fixed-mounted system | |
|---|---|---|---|
| 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 |
| Functions | Supply
Feeder Coupling |
Cable feeders
Motor outgoing feeders (MCC) |
Cable feeders |
| Rated current | up to 6,300 A | up to 630 A
up to 250 kW |
up to 630 A |
| Connection position | front or rear | front or rear | front |
| Section width | 400; 600; 800; 1,000; 1 ,400 | 600; 1,000; 1,200 | 1,000; 1,200 |
| 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 |
| Busbar position | rear/top | rear/top | rear/top |
Overview continued
| 3NJ6 in-line system | 3NJ4 in-line system | Reactive power compensation |
| Plug-in design | Fixed-mounted design | Fixed-mounted design |
| Cable feeders | Cable feeders | Central reactive power compensation |
| up to 630 A | up to 630A | unchoked up to 600 kvar
choked up to 500 kvar |
| front | front | front |
| 1,000; 1,200 | 600; 800; 1,000 | 800 |
| Form 1*; 3b; 4b | Form 1*; 2b | Form 1*; 2b |
| rear/top | rear | Rear/top/without |
The interaction of the components described below results in an optimal low voltage switchboard with advantages as regards:
- Safety – integrated
- Economic efficiency – right from the start
- Flexibility – through modularity
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)
- Single-front or double-front design
- Cable/busbar entry (from the top or bottom)
- Connection in cubicle (front or rear)
Standards and approvals
| Standards and regulations | Power switchgear and controlgear assembly
(design verification) |
EC 61439-2
DIN EN 61439-2-2 VDE 0660-600-2 |
| Test of internal fault behaviour (internal arc) | IEC/TR 61641
DIN EN 60439-1 Supplement 2 VDE 0660-500 Supplement 2 |
|
| Induced vibrations | IEC 60068-3-3
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 |
|
| Approvals | Europe
Russia, Belarus, Kasakhstan China |
CE marking and EC Declaration of Conformity
EAC CCC |
| Det Norske Veritas | DNV GL Type Approval Certificate | |
| Lloyds Register of Shipping
Shell conformity |
LR Type Approval Certificate
“DEP Shell” |
Technical data
| Installation conditions | Indoor installation, ambient temperature in the 24-h mean | + 35 °C
(-5 °C to + 40 °C) |
| Rated operating voltage (Ue) | Main circuit | Up to 690 V (rated frequency ʩ 50 Hz) |
| Dimensioning of creepage | Rated impulse withstand voltage Uimp | 8 kV |
| distances and clearances | Rated insulation voltage (Ui) | 1,000 V |
| Degree of pollution | 3 | |
| Main busbars, horizontal | Rated current | Up to 7,010 A |
| Rated peak withstand current (Ipk) | Up to 330 kA | |
| Rated short-time withstand current (Icw) | Up to 150 kA, 1s | |
| Rated device currents | Circuit-breakers | Up to 6,300 A |
| Cable feeders | Up to 630 A | |
| Motor feeders | Up to 630 A | |
| Internal separation | IEC 61439-2 | Form 1 to form 4 |
| BS EN 61439-2 | Up to form 4 type 7 | |
| IP degree of protection | In accordance with IEC 60529 | Ventilated up to IP43 Non-ventilated IP54 |
| Mechanical strength
Dimentions |
IEC 62262 | Up to IK10 |
| Height (without base) | 1,700; 1,800; 2,000; 2,200 mm | |
| 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 |
Technical specifications
| Technical specifications: SIVACON S8 low voltage distribution boards | ||
| Standards and specifications | Power switchgear and controlgear assembly | IEC 61439-2 |
| Design verifications | DIN EN 61439-2 (VDE 0660 Part 600-2) | |
| Inspection of behaviour with internal errors (arcing faults) | IEC 61641; VDE 0660 Part 500-2 | |
| Protection against electric shock | DIN EN 50274; VDE 0660 Part 514 | |
| Rated insulation voltage (Ui) | Main circuit | Up to 1,000 V |
| Rated operational voltage (Ue) | Main circuit | Up to 690 V |
| Clearances in air and creepage distances | Rated impulse withstand voltage Uimp | 8 kV |
| Overvoltage category | III | |
| Pollution degree | 3 | |
| Busbars (3-pole and 4-pole) | ||
| Horizontal main busbars | Rated current | Up to 7,000 A |
| Rated impulse withstand current (Ipl) | Up to 330 kA | |
| Rated short-time withstand current (Icw) | Up to 150 kA, 1s | |
| Vertical busbars for circuit breaker system | Rated current | Up to 6,300 A |
| Rated impulse withstand current (Ipk) | Up to 220 kA | |
| Rated short-time withstand current (Icw) | Up to 100 kA, 1s | |
| Vertical busbars for universal and fixedmounted design | Rated current | Up to 1,600 A |
| Rated impulse withstand current (Ipk) | Up to 143 kA | |
| Rated short-time withstand current (Icw) | Up to 65 kA*, 1s | |
| Vertical busbars for 3NJ4 in-line system (fixed-mounted) | Rated current | Up to 1,600 A |
| Conditional rated short-circuit current (Icc) | Up to 50 kA | |
| Vertical busbars for 3NJ6 in-line system (plug-in) | Rated current | Up to 2,100 A |
| Rated impulse withstand current (Ipk) | Up to 110 kA | |
| Rated short-time withstand current (Icw) | Up to 50 kA*, 1s | |
| Device rated currents | Circuit breaker 3WL/3VL | Up to 6,300 A |
| Cable feeders | Up to 630 A | |
| Motor outgoing feeders | Up to 250 kW | |
| Internal separation | IEC 61439-2, Section 8.101, | Form 1 to Form 4 |
| VDE 0660 Part 600-2, 8.101 | ||
| BS EN 61439-2 | To Form 4 Type 7 | |
| BS EN 61439-2 | To Form 4 Type 7 | |
| Surface treatment | (Coating in accordance with DIN 43656) | |
| Frame parts, bases | Sendzmir-galvanized | |
| Doors | Powder-coated | |
| Side panels | Powder-coated | |
| Back panels, roof plates | Sendzimir-galvanized | |
| Ventilation roof (IPX1, IPX2) | Powder-coated | |
| Standard colour of the powder-coated parts | RAL 7035, light grey or customer requirement | |
| (Coating thickness 100 ± 25 μm) | Design parts: Blue Green Basic | |
| IP degree of protection | In accordance with IEC/EN 60529 | IP30; IP31; IP40; IP41; IP42; IP54 |
| Dimensions | Preferred dimensions in accordance with DIN 41488 | |
| Height (without base): | 2,000; 2,200 mm | |
| Width | 200; 350; 400; 600; 800; 850 | |
| Depth (single-fronted): | 500; 600; 800 mm | |
| Depth (double-fronted): | 1,000; 1,200 mm | |
Fixed-mounted design Technical specifications
| Installation system | Fixed-mounted design with front panels |
| Functions | Cable feeders |
| Rated current | up to 630 A |
| Connection position | Front |
| Section width(mm) | 1,000; 1,200 |
| Internal separation | Form 1*; 2b; 4a; 4b |
| Busbar position | top, rear top and/or rear bottom |
Busbar ratings
Rating of the main busbar this table lists the rating data for the two possibilities how to position the main busbar — top or rear—Ambient tempearture must be observed in respect of the carrying capacity.
| Top busbar position | ||
| Rated current In at 35˚C ambient temperature | ||
| Ventilated | Non-ventilated | Rated short-time withstand current Icw (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 1) | 3,000 A 1) | 100 kA |
| 4,660 A 1) | 3,680 A 1) | 100 kA |
| 5,620 A 1) | 4,360 A 1) | 150 kA |
| 6,300 A 1) | 4,980 A 1) | 150 kA |
| 1) If circuit-breakers with a very high power loss are used, the following correction factors must be applied:
3WL1350: 0,95 WL1363: 0,88 |
||
| Rated current In at 35˚C ambient temperature | ||
| Ventilated | Non-ventilated | Rated short-time withstand current I)1s) |
| 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 | 3,160 A | 100 kA |
| 4,910 A 2) | 3,730 A 2) | 100 kA |
| 5,340 A 2) | 4,080 A 2) | 100 kA |
| 5,780 A 2) | 4,4480 A 2) | 100 kA |
| 7,010 A 2) | 5,440 A 2) | 150 kA |
| 1 ) When operating two systems per cubocle at the same time busbar position rear top and rear bottom), a reduction fcator has to be considered:
for ventilated boards: 0,94 for unventilated boards: 0,98 2) Busbar position rear top or rear bottom |
Main busbar , horizontal |
|
Frames, Enclosures & Busbars
The SIVACON S8 power distribution board combines a cost-efficient design with excellent quality.
covers and base panels are powder-coated or lacquered.panels and floor plates are sendzimir- galvanized. Doors, as standard. The surfaces of frame components, bases, rear additional safety. Section-to-section separation is provided pivoted lever lock. The roof plates feature pressure relief for various locking systems such as double bit fastener or either simple or central locking and can be fitted with with ease. The doors are available withuniversal door hinge allows for the hinge side to be changed ed doorlocking system offers maximum safety: the The patentexpansion.Circumferential rows of holes allow for individualstable, screw-fastened sheet steel profiles.the bearing components of the section are made from the SIVACON S8 meets every demand. The frame and all of ly and appealing: the intelligent design of Safe, user-friendSafety and functionalitya cost-efficient design with excellent quality.The SIVACON S8 power distribution board combines
Highlights
- High level of personal safety thanks to the patented door locking system
- Arrangement of busbar positions suitable for the application
- High level of flexibility thanks to variable busbar systems up to 7 ,000 A
Systematic flexibility
Whether your need is for simple systems or extensive networks with transversal and longitudinal couplers, SIVACON S8 offers you all the flexibility you need. The busbars can be positioned at either the top or the rear and, if required, two busbar systems can also be integrated in a power distribution board. The shipping splits are easily accessible from the front or the top. The busbar connections require zero maintenance.
technical specifications
| Frame | Door opening angle | 125˚; 180˚ with stand-alone design |
| Frame height | 1,700; 1,800; 2,000; 2,200mm | |
| Base height | 100; 200mm | |
| Degree of protection | in accordance with IEC 60529
IP30;IP31:IP42:IP54 |
|
| Main busbars | Rated currents | up to 7,000 A |
| Rated impulse | up to 330 kA | |
| withstand current(Iplk) | up to 150 kA | |
| Rated short-time withstand current(Icw) |
Variable busbar positions and stable sheet steel profiles offer maximum safety and flexibility
Sectional design
| Enclosure | Busbars | Internal separation |
| Roof plate (IPX1) | 11) Main busbar (L1… L3, N) – top | 18) Device compartment/busbar compartment |
| 2) Rear panel | 12) Main busbar (L1… L3, N) – rear top | 19) Cubicle to cubicle |
| 3) Design side panel | 13) Main busbar (L1… L3, N) – rear bottom | 20) Compartment to compartment |
| 4) Frame | 14) Main busbar (PE) – bottom | 21) Cross-wiring compartment |
| 5) Cover | 15) Distribution busbar system (L1… L3, N) device compartment | |
| 6) Base | 16) Distribution busbar (PE) cable connection compartment | |
| 7) Ventilated base compartment cover | 17) Distribution busbar (N) cable compartment | |
| 8) Ventilated section door | ||
| 9) Compartment door | ||
| 10) Head room door |
Withdrawable units
- Space-saving assembly thanks to the combination of various installation systems
- High level of personal safety, even in the event of a fault, thanks to closed front doors in all withdrawable unit positions (connected, test, disconnected positions)
- Long service life thanks to patented, low wear contact system
Highlights
The withdrawable unit design, which can be individually combined as required, is ideally suited to situations with frequently changing requirements.
The SIVACON S8 power distribution board can be ideally adapted to fit the space available.
| Cubicle height | |||||
| Frame | 1,800; 2,000; 2,200mm | ||||
| Base | Without, 100; 200mm | ||||
| Cubicle width | |||||
| Dependent of: | Cubicle type
Rated device current Connecting position and/or cable/busbar entry |
||||
| Cubicle depth | |||||
| Main busbar | Cubicle depth | ||||
| Type | Location | Rated current | Front connection | Rear connection | |
| Entry from the bottom | Entry from the top | ||||
| Single front | Top | 3,270A | 500; 800mm | 800mm | 800mm |
| 6,300 A1) | 800; 1,000mm | 1,200mm | 1,200mm | ||
| Rear | 4,000 A | 600mm | 600mm | ||
| 7,010 A | 800mm | 800mm | |||
| Double front | Rear | 4,000 A | 1,000mm | 1,000mm | |
| 7,010A1) | 1,200mm | 1,200mm | |||
Withdrawable units – features
Patented low-wear withdrawable unit contact system for long service life
Miniature withdrawable units up to 63 A or 30 kW. Up to 48 withdrawable units per section for space-saving installation
Shutter with double-action for standard and miniature withdrawable units for a high level of personal safety
Arc-resistant section busbar embedding for a high level of personal and system safety
Lockable disconnected position for safe commissioning and maintenance
Optional withdrawable unit coding (up to 9,216 options) or the clear assignation of withdrawable units
Universal installation system
Technical specifications
| Installation system | Withdrawable unit design, fixed-mounted design with compartment doors, plug-in design |
| Functions | Cable feeders, motor outgoing feeders (MCC) |
| Rated current In | up to 630 A, up to 250 kW |
| Connection position | front and rear |
| Section width(mm) | 600; 1,000; 1,200 |
| Internal separation | Form 2b; 3b; 4a; 4b; 4 Type 7 (BS) |
| Busbar position | top, rear top and/or rear bottom |
Safe and integrated power distribution with flexible application options for industrial plants.
Withdrawable units (MCC), fixed-mounted outgoing feeders and in-line switch disconnectors with LV HRC fuses 3NJ6 can be combined.
Reactive power compensation
Save costs with the intelligent SIVACON S8 technology
Cost-efficient system
In a network, reactive power is caused by inductive linear loads, such as motors, transformers or reactors, and inductive, non-linear loads, such as converters, welding apparatus, arc furnaces or UPS systems. The sections for central reactive power compensation relieve transformers and cables, reduce transmission losses and therefore save energy. Depending on the load structure, the reactive power compensation is equipped with choked or unchoked capacitor subassemblies. The controller subassembly has an electronic reactive power controller for door installation. The C/k value setting takes place automatically. The multifunction display is also used to set and display various parameters. The desired target cos phi can be set from 0.8 ind to 0.8 cap. Network parameters such as U, l, f, cos phi, P, S, Q, harmonics are displayed. The capacitor subassembly (up to 200 kvar) with MKK capacitors has a fuse switch disconnector, capacitor contactors, discharge devices and filter reactors. The switch disconnector subassembly can optionally be used for the central safety isolation of the integrated capacitor subassemblies.
Reactive power compensation for cost-efficient power supply.
Sections for the central reactive power compensation relieve transformers and cables and reduce transmission losses.
Whether for industrial applications or infrastructure, energy costs can be lowered thanks to the reactive power compensation.
| Technical specifications | |
| Installation system | Fixed-mounting |
| Functions | Central reactive power compensation |
| Rated current In | unchoked up to 600 kvar, choked up to 500 kvar |
| Capacitive reactive powerQ | Degree of choking: without 5.67 % ; 7 %; 14% |
| Connection position | front |
| Section width(mm)
Internal separation |
800
Form 1*; 2b |
| Busbar position | top, rear top and/or rear bottom |
Design verifications
| Design specifications | |||
| Verification through testing | Verification through calculation | Verification through engineering rules | |
| 1. Strength of materials and parts | ✓ | – | ✓ |
| 2. Degree of protection of enclosures | ✓ | – | ✓ |
| 3. Clearances in air and creepage distances | ✓ | ✓ | ✓1 |
| 4. Protection against electric shock and
integrity of protective circuits |
✓ | ✓1 | ✓ |
| 5. Incorporation of switching devices and components | – | – | ✓ |
| 6. Internal electric circuits and connection | – | – | ✓ |
| 7. Terminal for external conductors | – | – | ✓ |
| 8. Dielectric properties | ✓ | – | ✓2 |
| 9. Temperature-rise limits | ✓ | up to 1,600 A | up to 630 A3 |
| 10. Short-circuit withstand strength | ✓ | conditional 3 | conditional 3 |
| 11. Electromagnetic compatibility (EMC) | ✓ | – | ✓ |
| 12. Mechanical operation | ✓ | – | – |
- Effectiveness of the switchgear and controlgear assembly when external faults occur
- Impulse voltage withstand only
- Compared with a construction already tested
Verification of temperature rise
One of the most important verifications is the “Verification of temperature rise”. This verifies that the power distribution board is fit for purpose when the temperature rises due to power loss. In view of the ever increasing rated currents, together with higher requirements relating to degree of protection and internal separation, this is one of the greatest challenges in the power distribution board industry. This verification can be carried out by means of calculation for rated currents up to 1,600 A; for rated currents from 1,600 A, this verification must be performed by means of testing. Rules governing the selection of the test item (worst-case test) and the testing of complete switchgear and control gear assemblies ensure that there is systematic coverage of the entire product range and that the verification always includes the devices. Testing items selected at random is therefore inadequate, as is the replacement of a device without repeating testing.
Project checklist
Standards and specifications
| IEC 61439-1/2 / EN 61439-1/2
VDE 0660 Part600-1/2 |
IEC 61641/VDE 0660 Part 500-2 arc resistance
Level 1 Personal safety Level 3 Restriction to functional compartment Insulated main busbar |
Level 2 Restriction to one section
Level 4 Restrication to site of origin |
| Operating conditions | standard (interior climate3K4) | special | corrosive gases (e.g. H2S) | ||||||
| Ambient temperature
(24-hour average |
20˚C | 25˚C | 30˚C | 35˚C | 40˚C | 45˚C | 50˚C | ||
| Installation altitude above sea level | ≤ 2,000m | other | |||||||
| IP degree of protection | |||||||||
| Against the interior Section ventilated | IP30 | IP31 | IP40 | IP41 | IP42 | ||||
| Section non- ventilated | IP54 | ||||||||
| Against cable base | IP00 | IP30 | IP40 | IP54 | |||||
| manufacturer-provided | customer-provided | ||||||||
| Aggravated operating conditions | none | earthquake-proof | other | ||||||
| Control cabinet heating | no | yes | |||||||
Mains data/Infeed data
| Mains type | TN-C | TN-S | TN-C-S | IT | TT |
| Design
External connection |
L1; L2; L3; PEN | L1; L2; L3. PE +N ZEP (PEN + PE) | other: | ||
| 3-pole switchable | 4-pole switchable | ||||
| Transformer rated power Sr | kVA | Rated short-circuit voltage Uz | % | ||
| Rated operational voltage Ue | V | Frequency f | Hz | ||
| Rated short-time withstand current Icw | kA | Short-circuit withstand current Ik with DC | kA | ||
Horizontal busbar system
| Position | top | rear(top) | rear (bottom) | |||
| Rated current In | A | A | A | |||
| CU treatment | blank | silver-plated PEN, N=50% | tin-plated | |||
| AC design L1; L2; L3+…. | PEN | PE | N | PEN; N=50% | PEN; N=100% | |
| DC design | 220 V; L+; L-;PE | 24V; L+; M(L-) | ||||
Vertical busbar system
| CU treatment | blank | silver-plated | tin-plated | |||
| AC design L1; L2; L3 +…. | PEN | PE | N | PEN; N=50% | PEN; N=100% | |
| DC design | 220 V; L+; L-; PE | 24 V; L+;M(L-) | Other conditions | |||
Layout and installation
| Installation type | Single-fronted | back to back | Double-fronted | |
| Restriction of total length | none | yes | mm | |
| Max. net length per transport unit | 2,400mm | mm | ||
| Cable/busbar connection | ||||
| With incoming sections | from below | from above | from the rear | |
| With outgoing sections | from below | from above | from the rear | |
Sections
| Internal separation in accordance with IEC 61439-2; DIN EN 61439-2; VDE 0660 Part 600-2; BS EN61439-2 | |||||||
| Circuit breaker system | Form 1 | Form 2b | Form3a | Form 4b | Form 4 Type 7 | ||
| Universal installaion system | Form 2b | Form 3b | Form 4a | Form 4b | Form 4 Type 7 | ||
| Fixed-mounted design | Form 1 | Form 2b | Form 3b | Form 4a | Form 4b | ||
| Fixed-mounted 3NJ4 in-line design | Form 1 | Form 2b | |||||
| Plug-in 3NJ6 in-line design | Form 1 | Form 3b | Form 4b | ||||
| Reactive power compensation | Form 1 | Form 2b | |||||
Disclaimer
The information provided in this brochure contains descriptions or characteristics of performance which in case of actual use do not always apply as described or which may change as a result of further development of the products. An obligation to provide the respective characteristics shall only exist if expressly agreed in the terms of contract. All product names may be brand names of Siemens Ltd or another supplier whose use by third-parties for their own purposes may violate the owner’s rights.
