Low voltage switchboard CMS
Flexible modular construction
Our modular-designed and modern low-voltage switchgear offer full freedom when choosing electrical components and we will be only too happy to provide a proposal for the most cost-effective solution. This also gives flexibility in terms of width, height and depth so that the switchgear units can be totally adapted to the installation site.
Product quality
As an accredited switchgear contractor, we have undergone extensive and thorough training. This means we can guarantee a high and consistent level of quality across all our products, which are tested and quality inspected before delivery. We set ourselves high standards to exceed expectations and continually assess our quality processes. Our CMS switchgear units are based on one of the market’s best and most efficient platforms, CUBIC.
Operational and personal safety
Our high-quality, low-voltage switchgear units are tested in compliance with IEC/EN 60439-1 and can also be verified in compliance with IEC/EN 61439-2. We also offer complete personal and operational safety tests according to our customer’s requirements.
Modern switchgear with a modular design
Our modular-designed and well-documented low-voltage CMS switchgear units are based on CUBIC’s switchgear system and are available in different solutions for any need. Some examples:
- Main and distribution switchboards
- Service switchgear
- Motor Control Centres (MCC)
- Ship switchgear
- Cassette switchgear (Multi Drawer)
- Distribution centres
The switchboard system is available for most switchgear on the market.
Metering and communications
Today, many customers demand sophisticated solutions in addition to pure electrical distribution. There is increasing demand for functions such as metering of outgoing groups, grid analysis, earth fault monitoring, alarm management, arc fault monitors and remote control via control system nodes or bus solutions.
Today’s modern circuit breakers, multi-metering and relay protection also improve the ability to achieve a complete overview of an electrical installation cheaply and simply from any location via web-based functions.
Separation
Holtab CMS provides optional separation from FORM 1 to 4 and thus optimal operational safety and reliability in full compliance with IEC/EN 61439 and customer requirements. It’s possible to carry out visual and thermographic inspections of busbar joints after switchboard installation and commissioning.
Tests and certifications
Because CUBIC places great emphasis on operation reliability and safety it regularly carries out the additional tests that the market demands such as earthquake, shock and arc fault tests. CUBIC’s products are tested and/or type approved by the world’s most prominent certification institutes.
Technical data
| Material | Electro-galvanized/iron-phosphated steel sheet |
| Colour | Light grey RAL 7035 powder coated 60–80 μm |
| Busbar systems | Systems 225, 2000 and 7000 |
| System earthing | TN-C, TN-S, TN-C-S, TT and IT |
| Internal separation | FORM 1, 2a, 2b, 3a, 3b, 4a, 4b och FORM 4 typ 1–7 |
| Multi drawer | Up to 630 A/220 kW AC3, Icc up to 120 kA |
| Electromagnetic compatibility | EMC environment 1, 2 and # 1 and 2 |
| Design verification | According to IEC/EN 61439-2 |
| Rated current | Up to 8750 A |
| Dielectric strength | 3,5 kV |
| Rated short time withstand current | Up to 120 kA 1s |
| Rated peak withstand current | Up to 264 kA |
| Rated insulation voltage | 1000 V AC |
| Rated operational voltage | Upp till 1000 V, 50 Hz |
| Protection class | Up to IP54 |
| Vibration test | 2 G in the frequency range 2.5–500 Hz in three directions |
| Shock test | 30 G for 12.5 ms in six directions |
| Seismic test | Earthquake test carried out with biaxial horizontal and vertical multi-frequency movements |
| Arc fault test | Type B assembly according to IEC 61641 and AS/NZS 3439.1 |
| Surface treatment | Tropical test ISO 6270, class C2 high, according to ISO 12944 |
