Front section
Circuit-breakers, metering and auxiliaries.
Circuit-breaker compartments enclosed by metal partitions and individual hinged front doors, with ventilation, auxiliary wiring passages and circuit-breaker fixing accessories.
LOW VOLTAGE · PRIMARY DISTRIBUTION
LPCPOWER CENTER
Your plant’s power.
Engineered around you.
Low-voltage switchboards for centralised power distribution. Modular construction, metal-enclosed sections and configurations developed for industrial plants and large commercial facilities.
IEC 61439-1 / IEC 61439-2FORMS 3a · 3b · 4bTECHNICAL CATALOGUE / V2.0 · 04.03.2024
01 / TECHNICAL SPECIFICATIONS
THE RATINGS YOU NEED.
RIGHT AT YOUR FINGERTIPS.
Explore electrical ratings, protection, service conditions and materials.
| Characteristic | Symbol | Catalogue value |
|---|---|---|
| Rated operational voltage | Ue | Up to 690 V AC / 750 V DC |
| Rated insulation voltage | Ui | Up to 1,000 V AC / 1,500 V DC |
| Rated impulse withstand voltage | Uimp | Up to 12 kV |
| Rated frequency | fn | 50–60 Hz |
| Rated assembly current | InA | Up to 6,300 A |
| Rated short-time withstand current | Icw | Up to 100 kA / 1 s |
| Rated peak withstand current | Ipk | Up to 220 kA |
| Overvoltage category | — | Up to IV |
| Pollution degree | — | 3 |
Ue, Ui and Uimp depend on the installed equipment. Range maxima apply to the configuration specified for the project.
| Characteristic | Symbol | Catalogue value |
|---|---|---|
| Reference standards | — | IEC 61439-1 / IEC 61439-2 |
| Forms of internal separation | — | 3a · 3b · 4b |
| With doors closed | IP | IP30 |
| Horizontal roof surface | IP | IP3XD |
| With doors open | IP | IP2X |
| Mechanical impact on the metal enclosure | IK | IK10 — IEC/EN 62262 |
| Resistance to corrosion | — | Severity A |
IP ratings according to IEC/EN 60529. Other degrees of protection on request.
| Characteristic | Symbol | Catalogue value |
|---|---|---|
| Installation | — | Stationary, indoor, in environment A |
| Minimum ambient temperature | — | −5 °C |
| Maximum ambient temperature | — | +40 °C |
| Average temperature over 24 hours | — | 35 °C |
| Maximum relative humidity | — | 50% at 40 °C |
| Altitude | — | Up to 2,000 m above sea level |
The catalogue describes environment A as a network supplied by a dedicated MV/LV transformer.
| Characteristic | Symbol | Catalogue value |
|---|---|---|
| Frame and internal partitions | — | Pre-galvanised sheet steel |
| Doors and side panels | — | Semigloss powder coating |
| Standard colour | RAL | 7035 — light grey |
| Main and distribution busbars | — | Bare flat electrolytic copper |
| Auxiliary wiring | — | Black N07-VK; other cables on request |
| Insulating material group | CTI | II — 400 ≤ CTI < 600 V |
| Flammability classification | — | UL 94 V-0 |
| Insulating material composition | — | Halogen- and silicone-free |
| Insulators | — | Glass-fibre-reinforced polyester — 130 °C |
| Selected internal insulating parts | — | Polycarbonate — ≥120 °C |
Other colours on request.
02 / CONSTRUCTION
EVERY FUNCTION.
ITS OWN SPACE.
Independent sections, bolted together to suit the project. Main busbars and auxiliary wiring connect the assembly.
First rear zone
Busbars and branch connections.
Horizontal main busbars and vertical distribution busbars on the inner right-hand side. Lower-rated circuits branch from the distribution busbars; higher-rated circuits connect directly to the main or branch busbars.
Second rear zone
Power connections.
Space for cable or busbar connections. The rear of each section is closed by full-height doors.
Frame and insulation
Riveted frame with metal panels and partitions. The entire metal structure is earthed. Air-insulated busbars and self-extinguishing insulating supports with mechanical strength and anti-tracking properties.
Natural ventilation
Front and rear louvers, ducts alongside the compartments and roof outlets provide natural cooling. In the IAC version, ventilation flaps close automatically in the event of an internal arc.
Auxiliaries and load diversity
Limited auxiliary equipment and terminals can share an upper compartment; larger quantities use dedicated compartments. The combination of functional units accounts for load diversity and section current-carrying capacity.
Coordinated construction with medium-voltage switchboards allows compact transformer substations, with the arrangement defined for the project.
FOR THE DESIGNERHow air flows through the switchboard
LPC / SHEET 03
Natural ventilation of the section
- Range
- LPC
- Reference
- V2.0 / p. 7
- Dimensions
- —
- Layout
- LPC
03 / FORMS OF INTERNAL SEPARATION
THREE FORMS.
CLEAR DIFFERENCES.
Compare the separation of busbars, functional units and terminals.
Conceptual separation diagram. It does not represent the switchboard’s physical layout.
3a
Busbars and terminals in a shared zone.
Busbars are separated from all functional units, and functional units are separated from one another. Terminals for external conductors are not separated from the busbars.
Terminals belonging to different functional units are not separated from one another. Terminals and external conductors are separated from the functional units.
Conceptual separation diagram. It does not represent the switchboard’s physical layout.
3b
Terminals separated from the busbars.
Busbars remain separated from all functional units, and functional units from one another. Terminals and external conductors are separated from the busbars.
Terminals belonging to different functional units are not separated from one another. Terminals and external conductors are separated from the functional units.
Conceptual separation diagram. It does not represent the switchboard’s physical layout.
4b
Each unit has separately enclosed terminals.
Busbars and functional units are separated. The terminals associated with each functional unit are also separated from the busbars and from the terminals of every other unit.
Terminals are in a compartment separate from the associated functional unit. Functional units are also separated from one another.
BusbarsFunctional unitsTerminals
The catalogue’s explanatory page also compares form 4a, with terminals in the same compartment as their functional unit. The stated LPC versions are 3a, 3b and 4b; in 4b terminals occupy a separate space from their associated functional unit.
FOR THE DESIGNERSeparation inside the switchboard
Side sections and plans of the three versions. The drawings preserve the source construction details for moulded-case and air circuit-breakers.
LPC / SHEET 04
Construction separation · MCCB
- Circuit-breakers
- MCCB
- Forms
- 3a / 3b / 4b
- Configurations
- 3
- Reference
- V2.0 / p. 9
LPC / SHEET 05
Construction separation · ACB
- Circuit-breakers
- ACB
- Forms
- 3a / 3b / 4b
- Configurations
- 3
- Reference
- V2.0 / p. 9
04 / CIRCUIT-BREAKERS AND ACCESS
THE RIGHT CONFIGURATION.
FOR EACH CIRCUIT.
Air circuit-breakers (ACBs) and moulded-case circuit-breakers (MCCBs), in fixed, plug-in and withdrawable versions.
FixedFixed circuit-breaker installation.
Plug-inIn service: main and auxiliary circuits connected. Removed: device outside the compartment, with both circuits disconnected from the stationary part.
WithdrawableFour positions, illustrated below. Guides, auxiliary levers and locking catches allow movement and locking in the specified positions.
WITHDRAWABLE CIRCUIT-BREAKER
Service
Circuit-breaker inside the compartment; main and auxiliary circuits connected to the fixed part.
- Main circuits
- Connected
- Auxiliary circuits
- Connected
- Physical position
- Inside the compartment
WITHDRAWABLE CIRCUIT-BREAKER
Test
Circuit-breaker inside the compartment; main circuits disconnected and auxiliary circuits connected to the fixed part.
- Main circuits
- Disconnected
- Auxiliary circuits
- Connected
- Physical position
- Inside the compartment
WITHDRAWABLE CIRCUIT-BREAKER
Disconnected
Circuit-breaker inside the compartment; main and auxiliary circuits disconnected from the fixed part.
- Main circuits
- Disconnected
- Auxiliary circuits
- Disconnected
- Physical position
- Inside the compartment
WITHDRAWABLE CIRCUIT-BREAKER
Removed
Circuit-breaker removed from the compartment.
- Main circuits
- Disconnected
- Auxiliary circuits
- Disconnected
- Physical position
- Outside the compartment
This view describes circuit connection states. Access, interventions and service continuity depend on the switchboard configuration and the applicable procedures.
FOR THE DESIGNERStandard compartments and cable connections
Explore the combinations listed on page 12 of the catalogue. Dimensions refer to compartments, not the overall section width.
28 rows
Scroll horizontally to view all columns →
| Type | Size (A) | Poles | Version | Vertical compartment (mm) | Horizontal compartment (mm) | Connections per phase | Screw |
|---|---|---|---|---|---|---|---|
| ACB | 1250 - 1600 | 3P | F-W | 500 x H 527 | — | 4 | M12 |
| ACB | 1250 - 1600 | 4P | F-W | 500 x H 527 | — | 4 | M12 |
| ACB | 2000 - 2500 | 3P | F-W | 600 x H 527 | — | 6 | M12 |
| ACB | 2000 - 2500 | 4P | F-W | 600 x H 527 | — | 6 | M12 |
| ACB | 3200 - 4000 | 3P | F-W | 700 x H 651 | — | 12 | M12 |
| ACB | 3200 - 4000 | 4P | F-W | 700 x H 651 | — | 12 | M12 |
| ACB | 5000 - 6300 | 3P | F-W | 1000 x H 651 | — | 12 | M12 |
| ACB | 5000 - 6300 | 4P | F-W | 1100 x H 651 | — | 12 | M12 |
| MCCB | 100 - 160 | 3P-4P | F - D | 425 x H 527 | 600 x H 155 | 2 | M8 |
| MCCB | 250 | 3P-4P | F - D | 425 x H 527 | 600 x H 186 | 2 | M8 |
| MCCB | 250 | 3P | W | 425 x H 527 | 600 x H 186 | 2 | M8 |
| MCCB | 250 | 4P | W | 425 x H 527 | 600 x H 217 | 2 | M8 |
| MCCB | 400 | 3P | F - D | 425 x H 527 | 600 x H 217 | 2 | M12 |
| MCCB | 400 | 4P | F - D | 425 x H 527 | 600 x H 248 | 2 | M12 |
| MCCB | 400 | 3P | W | 425 x H 527 | 600 x H 217 | 2 | M12 |
| MCCB | 400 | 4P | W | 425 x H 527 | 600 x H 279 | 2 | M12 |
| MCCB | 630 - 800 | 3P | F- D | 425 x H 527 | 600 x H 279 | 2 | M12 |
| MCCB | 630 - 800 | 4P | F- D | 425 x H 527 | 600 x H 341 | 2 | M12 |
| MCCB | 630 - 800 | 3P | W | 425 x H 527 | 700 x H 310 | 2 | M12 |
| MCCB | 630 - 800 | 4P | W | 425 x H 527 | 700 x H 372 | 2 | M12 |
| MCCB | 1000 - 1250 | 3P | F | 425 x H 527 | 700 x H 310 | 4 | M12 |
| MCCB | 1000 - 1250 | 4P | F | 425 x H 527 | 700 x H 372 | 4 | M12 |
| MCCB | 1000 - 1250 | 3P | W | 425 x H 527 | 700 x H 372 | 4 | M12 |
| MCCB | 1000 - 1250 | 4P | W | 425 x H 527 | 700 x H 434 | 4 | M12 |
| MCCB | 1600 | 3P | F | 425 x H 651 500 x H 527 | — | 4 | M12 |
| MCCB | 1600 | 4P | F | 425 x H 651 500 x H 527 | — | 4 | M12 |
| MCCB | 1600 | 3P | W | 425 x H 651 500 x H 527 | — | 4 | M12 |
| MCCB | 1600 | 4P | W | 500 x H 527 | — | 4 | M12 |
No rows match your search. Change the text or circuit-breaker type.
FOR THE DESIGNERTen sections. Fronts and single-line diagrams.
Ten section examples, each with its own front view and single-line diagram. Select a code to compare device and branch arrangements.
Eight stacked moulded-case circuit-breakers with branches from the vertical busbar.
LPC / SHEET M0S
M0S · front and single-line diagram
- Drawing code
- M0S
- Devices in example
- 8
- Height label
- H
- Source
- V2.0 / p. 10
Five moulded-case circuit-breakers and one larger device in the lower section.
LPC / SHEET MVS
MVS · front and single-line diagram
- Drawing code
- MVS
- Devices in example
- 6
- Height label
- H
- Source
- V2.0 / p. 10
One air circuit-breaker; the diagram shows a branch from the upper busbar.
LPC / SHEET M01
M01 · front and single-line diagram
- Drawing code
- M01
- Devices in example
- 1
- Height label
- H
- Source
- V2.0 / p. 10
Two air circuit-breakers; the central busbar has one upper and one lower branch.
LPC / SHEET M02
M02 · front and single-line diagram
- Drawing code
- M02
- Devices in example
- 2
- Height label
- H
- Source
- V2.0 / p. 10
Two vertically stacked moulded-case circuit-breakers, with branches above and below the central busbar.
LPC / SHEET M2V
M2V · front and single-line diagram
- Drawing code
- M2V
- Devices in example
- 2
- Height label
- H
- Source
- V2.0 / p. 11
Four moulded-case circuit-breakers in two columns; two upper and two lower branches.
LPC / SHEET M4V
M4V · front and single-line diagram
- Drawing code
- M4V
- Devices in example
- 4
- Height label
- H
- Source
- V2.0 / p. 11
Front without circuit-breakers; the diagram shows the conductor route only.
LPC / SHEET M0B
M0B · front and single-line diagram
- Drawing code
- M0B
- Devices in example
- 0
- Height label
- H
- Source
- V2.0 / p. 11
Three vertically stacked air circuit-breakers and three busbar levels shown in the diagram.
LPC / SHEET M03
M03 · front and single-line diagram
- Drawing code
- M03
- Devices in example
- 3
- Height label
- H
- Source
- V2.0 / p. 11
Two moulded-case circuit-breakers in the upper section and one air circuit-breaker in the lower section.
LPC / SHEET M3B
M3B · front and single-line diagram
- Drawing code
- M3B
- Devices in example
- 3
- Height label
- H
- Source
- V2.0 / p. 11
One air circuit-breaker in the upper section and two moulded-case circuit-breakers in the lower section.
LPC / SHEET M3A
M3A · front and single-line diagram
- Drawing code
- M3A
- Devices in example
- 3
- Height label
- H
- Source
- V2.0 / p. 11
FOR THE DESIGNERFrom individual sections to a complete assembly
A complete catalogue example, with fronts and connections shown in one drawing. The two BLINDO 2500A labels apply to this arrangement.
LPC / SHEET E1
A complete assembly example
- Columns in example
- 6
- Section labels
- M0B · M03 · MS2
- Circuit tags
- P12–P16
- Connections shown
- 2 × BLINDO 2500A
| Section | Drawing code | Circuit reference |
|---|---|---|
| 01 | M0B | — |
| 02 | M03 | P12 |
| 03 | M03 | P13 |
| 04 | M03 | P14 |
| 05 | MS2 | P15 |
| 06 | MS2 | P16 |
05 / TESTING AND REFERENCES
PERFORMANCE.
PUT TO THE TEST.
The reports and certificates listed in the LPC catalogue, with separate values and references for each test.
ACAE – LOVAG /IT 13.121
Dielectric properties and temperature rise
EN 61439-2
- 2,200 V for 5 s; 8 and 12 kV impulse
- Temperature-rise test at 6,300 A
ACAE – LOVAG /IT 14.023
Short-circuit withstand
EN 61439-2
- Main circuits: 100 kA for 1.1 s / 220 kA peak
- Protective circuits: 60 kA for 1.1 s / 136 kA peak
- Protective circuit verification: <0.1 Ω
INTEK /RP2012-0404-00
Enclosure and protection
EN 60529 · EN 62262 · EN 61439-1
- Degrees of protection IP30 and IP31
- IK10 mechanical impact
- Corrosion resistance, type A
ACAE – LOVAG /IT 24.011
Internal arcing test
IEC TR 61641 Ed. 3
- 100 kA for 0.3 s — criteria 1 to 5
- Dielectric test
EUCENTRE (ACCREDIA) /ICE039E23_TR_1
Seismic test
IEC & IEEE
- Severity level II
- 1.0 g horizontal / 0.8 g vertical
References listed in catalogue V2.0 dated 4 March 2024. Test results apply to the tested configurations; applicability to the supplied assembly is checked during project engineering.
06 / DIMENSIONS AND INSTALLATION
THE SWITCHBOARD.
IN ITS SPACE.
Range dimensions are the starting point. The final arrangement of sections and overall dimensions are defined in the project drawings.
Illustrative diagram, not to scale. No project-specific configuration is represented.
- Nominal body height
- 2,250 mm
- Base depth
- Widths in the general data sheet
Dimensions listed in the general technical data sheet (p. 4). They depend on section type; not all combinations are equivalent or interchangeable.
Level floor
Install on a level floor. Foundation channels are available on request.
M12 fixing
The catalogue normally specifies M12 expansion anchors in the provided fixing holes.
Front and rear access
The installation diagram shows over 1,200 mm at the front and over 1,000 mm at the rear. Confirm clearances against the project drawings.
The installation drawing shows an 80 mm protrusion above the switchboard body. This is not a ceiling-clearance dimension: check the overall height against the project drawings.
FOR THE DESIGNERSection dimensions and installation details
These tables retain the dimensional groups shown on pages 10 and 14. The values are catalogue references: they do not authorise arbitrary combinations and do not replace project drawings.
| Section type | Width L (mm) | Depth P (mm) | Height H (mm) |
|---|---|---|---|
| M0S / MVS | 600 / 700 | 1000 / 1200 / 1400 | 2250 |
| MV2 | 500 | 1200 / 1400 | 2250 |
| MV4 | 850 / 1000 | 1200 / 1400 | 2250 |
| M0B | 300 | 1000 / 1200 / 1400 | 2250 |
| Section type | Width L (mm) | Depth P (mm) | Height H (mm) |
|---|---|---|---|
| M01 / MV2 | 600 / 700 / 850 / 1000 / 1200 | 1200 / 1400 | 2250 |
| MV3 | 600 / 700 / 850 | 1200 / 1400 | 2250 |
| M3A\B | 850 / 1000 / 1100 | 1200 / 1400 | 2250 |
LPC / SHEET 01
Overall dimensions and access
- Body height
- 2 250 mm
- Roof protrusion
- 80 mm
- Rear access
- >1 000 mm
- Front access
- >1 200 mm
LPC / SHEET 02
Base openings and fixings
- Depth P
- 1 000 / 1 200 / 1 400 mm
- M0S opening
- 200 × L mm
- Section opening
- L1 × L2
- Reference
- L / L1 / L2
| Type | P (mm) | L (mm) | L1 (mm) |
|---|---|---|---|
| M0S | 1000 | 600 | 300 |
| M0S | 1200 | 600 | 500 |
| M0S | 1400 | 600 | 500 |
| M0S | 1000 | 700 | 300 |
| M0S | 1200 | 700 | 500 |
| M0S | 1400 | 700 | 500 |
| Type | L (mm) | L1 (mm) | L2 (mm) |
|---|---|---|---|
| M01/M02/MV2 | 500 | 300 | 600 |
| M01/M02/MVS | 600 | 400 | 600 |
| M01/M02/MVS | 700 | 500 | 600 |
| M01/M02/M3A–B/MV4 | 850 | 650 | 600 |
| M01/M02/M3A–B | 1000 | 800 | 600 |
| M01/M02/M3A–B | 1200 | 1000 | 600 |
QUALITY AND PRODUCT LIFE CYCLE
FROM MANUFACTURE.
TO END OF LIFE.
The catalogue refers to ISO 9001 and ISO 14001 management systems, provides for a quality certificate on supply, and states that service life can reach 30 years, provided the prescribed maintenance instructions are followed.
Metals, insulating materials and packaging are managed according to the materials actually present and local requirements. ICEL provides guidance for subsequent recycling or disposal.
CATALOGUE REFERENCEMaterial by material. Through end of life.
Materials and recycling or disposal methods at end of life.
| Material | Route stated in the catalogue |
|---|---|
| Metals: Fe, Cu, Al, Ag, Zn, W and others | Separate collection and recycling |
| Thermoplastics | Recycling or disposal |
| Epoxy resin | Separation of metal and disposal of the remainder |
| Rubber | Disposal |
| Transformer dielectric oil | Removal from equipment, followed by recycling or disposal |
| SF6 gas | Recovery from equipment, followed by recycling or disposal |
| Wood packaging | Recycling or disposal |
| Foil packaging | Recycling or disposal |
07 / TECHNICAL FAQ
THE RIGHT QUESTIONS.
CLEAR ANSWERS.
The key information for a technical discussion about your plant.
Have a specific requirement?What applications is LPC Power Center designed for?
LPC is a primary low-voltage distribution switchboard for transformer and distribution substations in industrial plants and large commercial facilities. Its modular construction allows sections to be combined to suit the project’s electrical diagram.
Is LPC Power Center suitable for LV distribution up to 6,300 A?
The catalogue lists operational voltages up to 690 V AC or 750 V DC and a rated assembly current up to 6,300 A. Rated short-time withstand current Icw is up to 100 kA for 1 s, with Ipk up to 220 kA. Voltage ratings depend on the installed equipment; the final configuration is defined for the project.
Which circuit-breaker types and brands can be integrated into the Power Center?
LPC accommodates air circuit-breakers (ACBs) and moulded-case circuit-breakers (MCCBs), in fixed, plug-in or withdrawable versions. ICEL integrates ABB, Siemens and Schneider low-voltage equipment selected to suit the specification. Dimensions, connections and ratings of the specific combination are checked during engineering. For withdrawable devices, the catalogue distinguishes service, test, disconnected and removed positions.
How do forms 3a, 3b and 4b differ?
All three forms separate busbars from functional units and functional units from one another. In form 3a, terminals are not separated from the busbars; in form 3b, they are. In form 4b, each unit’s terminals are also separated from other units’ terminals and located in a compartment separate from the associated functional unit.
Which type tests and verifications are documented for LPC?
The LPC catalogue documents dielectric and temperature-rise verification, short-circuit withstand, enclosure and protection tests, plus internal arcing and seismic tests. References include ACAE–LOVAG IT 13.121 and IT 14.023, INTEK RP2012-0404-00, ACAE–LOVAG IT 24.011 and EUCENTRE ICE039E23_TR_1. Each report relates to the tested conditions and configuration; ICEL checks its relevance to the requested supply.
Has LPC undergone internal arcing testing?
Yes. The catalogue lists ACAE–LOVAG test IT 24.011 to IEC TR 61641 Ed. 3 at 100 kA for 0.3 s, criteria 1 to 5, and a dielectric test. These results refer to the tested configuration and are distinct from the rated short-time withstand current Icw.
Is seismic qualification documented?
The catalogue lists EUCENTRE (ACCREDIA) report ICE039E23_TR_1: severity level II, with accelerations of 1.0 g horizontally and 0.8 g vertically. Applicability to a project must be checked against the configuration and installation conditions.
What dimensions and installation conditions apply?
The technical data sheet lists a height of 2,250 mm, base depths of 1,000, 1,200 or 1,400 mm and section widths of 500, 600, 700, 850, 1,000 or 1,100 mm. Installation is stationary and indoors, on a level floor. Overall dimensions, access clearances and section configuration are defined in the project drawings.
What is needed to request an LPC Power Center quotation?
The technical discussion starts with the single-line diagram, network characteristics, required currents, loads and their diversity. It also considers the form of separation, circuit-breakers, cable or busbar connections, auxiliary circuits, service environment and available space.
LPC / DIGITAL CATALOGUESource: ICEL technical catalogue, IT+EN V2.0, 04.03.2024.
Data and illustrations are not binding. ICEL reserves the right to make changes during product development. Supply characteristics are defined for each project.
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