Main Distribution Board (MDB)
A switchboard is a large single panel, frame, or assembly of panels on which are accessed from front, rear or both sides. They are generally installed immediately after the power source (transformers or generators).
MDB is designed and tested as per the new IEC standard 61439-1,2. This panel is available up to 6300A, 100kA/ 1 sec, Form 4b.
Low Voltage Switchboards are mainly used for electrical power distribution
and control.
- RAL7035 color is standard, other colors can be provided upon
- Neutral and earth busbars can be rated up to 100% of the main
- Optimized solution with compact design provides 6300A in 800mm depth
Technical Data
| Enclosure Name FGECO | |||
|
Electrical Data |
Rated voltage |
Rated operating voltage Ue | Up to 690 V |
| Rated insulation voltage Ui | Up to 1000 V | ||
| Rated impulse withstand voltage Uimp | Up to 12 kV | ||
| Overvoltage category | Up to IV | ||
| Material group | IIIa | ||
| Degree of pollution | 3 | ||
| Rated frequency | 50/60 Hz | ||
|
Rated current |
Busbar type |
Pure copper bars, with 99.9%conductivity | |
| Rated current for main distribution busbar In | Up to 6100 A | ||
| Conditional short circuit current Icc | Up to 100 kA @ 0.2PF | ||
| Rated short-time withstand current Icw | Up to 100 kA @ 1 Sec | ||
| Rated short-time withstand current Icw | Up to 65 kA @ 3 Sec | ||
| Rated peak withstand current Ipk | Up to 220 kA | ||
|
Incoming and outgoing |
Incoming feeders | Up to 6300 A | |
| Distribution feeders | Up to 6300 A | ||
| Arc fault | Prospective short-circuit current | Up to 100 kA @ 300 ms | |
|
Direct contact protection |
Form of separation | Up to 4b | |
| Protection against electric shock | Yes | ||
| Seismic withstand capability test and induced vibrations | Yes | ||
| Ventilation | Forced / Normal | ||
|
Mechanical Characteristics |
Skid base height | Up to 300 mm | |
| Number of useful modules (1 module = 50mm) | 43 M | ||
|
Degree of protection |
External mechanical impacts strength IK | Up to IK10 | |
| External degree of protection IP | Up to IP55 | ||
|
Steel components |
Frame thickness | Up to 3 mm | |
|
Sheet metal material |
AluZinc steel Electrogalvanized /Stainless Steel | ||
|
Surface protection |
Electrostatic powder coating/ Epoxy | ||
| Standard colors | RAL7035* | ||
| Panel mounting | Free standing only | ||
|
General |
Installation environment |
Ambient temperature (°C) | 40* |
| Relative humidity | max 50% at 40°C | ||
| Maximum altitude | Up to 2000m* | ||
|
Busbar |
Busbar system | 3 PH, Neutral and PE | |
| Busbar insulating material | PVC sleeving | ||
| Busbar plating material | Bare / tin / silver | ||