LV Switchboard TYPE D Power Distribution

Standards IEC 61439-1 & 2, IEC TR 61641, IEC 60529

Electrical Data

Voltage up to 690 Vac (50/60 Hz)
Main busbar rating up to 7000 A
Distribution busbar rating up to 3200 A

Rated short-time current (lcw) : 

• horizontal main busbar up to 100 kA rms – 1s (peak current lpk up to 220 kA)
• vertical distribution busbar up to 85 kA rms – 1s (peak current lpk up to 187 kA)

Conditional short-circuit current (lsc) up to 85 kA
Internal arc withstand current 85 kA – 0.4 s (IEC TR 61641)
Earthing system TT-IT-TNS-TNC

Communication

Protocols : Ethernet TCP/IP, Ethernet/IP, Profibus-DP, DeviceNet,
Modbus,CANopen, etc.

Mechanical Data

• Form 2b/3b/4a/4b
• Withdrawability FFF/WWW
• Seism IBC 2006 / AC 156 (site class B-C-D, floor level only)
• IEC68-3-3 (equivalent to Richter scale up to level 9)
• GOST 17516.1-90 (civil market, all seismic intensity, up to installation level 2)
• Installation indoor environment type 2
• Degree of protection IP20, IP31, IP42, IP54
• Operating temperature – 5 °C to 35 °C / 50 °C