SIEPAN Low-Voltage Power Distribution Boards – Safe, Adaptable, and High-Performance

With a legacy of reliability, the Siemens 8PU low-voltage switchboard design has long set the standard for robust power distribution solutions in demanding industries.

Engineered for safety and certified in accordance with IEC 61439 – 1 and 2 standards, these systems offer dependable protection for both personnel and equipment. Built to perform in harsh environments—including high temperatures and dusty conditions—the 8PU switchboards are trusted across a wide range of sectors such as cement, steel, petrochemicals, pharmaceuticals, food and beverage, data centers, healthcare, hospitality, and urban transit infrastructure. Over 100,000 of these boards have been deployed, proving their reliability and consistent performance.

This trusted Siemens technology, known as SIEPAN 8PU®, is now accessible through us, delivering proven efficiency and flexibility wherever it’s needed.

  • Conformance to Seismic withstand upto Zone V
  • Conformance to Type Tested assemblies (TTA)
  • Conformance to Internal Arc Containment (IAC)
  • Fully compartmentalized, bolted & modular design for
  • PCC & MCC
  • Non-compartmentalized drive control panels
  • Non-compartmentalized APFC panels
  • Power control centres
  • Communication capable intelligent power control centres
    (IPCCs)
  • Withdrawable motor control centres with patented
    Alstan® bus-bar technology
  • Energy management PCCs for Plant & Building
  • Motor control centres – Fuseless and with Fuse
  • Intelligent motor control centres (IMCCs)
  • Integrated PMCCs for Ethernet connectivity
  • Automatic power factor correction panels
  • All variants available with a choice of aluminum and
    copper for bus-bars
  • Degree of ingress protection upto IP 54 for all ratings
  • Siemens innovation & technology
  • Maximum reliability in protection of your plant and
    equipment
  • Maximum safety for operating personnel
  • Suited for the most arduous site conditions
  • Compact and space saving
  • Extensive License Partner network across the country
L.T. Switch Board SIEPAN 8 PU
SIEPAN 8PU Type-Tested System (TTA) as per IS 8623 – 1 / IEC 439

Type Tests

  • Temperature rise limits
  • Di-electric properties
  • Short-circuit withstand

Special Tests

  • Seismic withstand (Zone III/V)
  • Internal arc containment (IAC)
  • Continuity of protective circuit

Routine Tests

  • Inspection of wiring & operation
  • Insulation verification
  • Continuity & insulation resistance

Technical Data

Conformance to standardsIS8623-1 / IEC 439
Internal Arc ContainmentIEC 61641
Seismic withstandIS 1893
Short circuit withstand (Icw) – main bus65kA / 1sec / 143kA peak
Short circuit withstand (Icw) – neutral39kA / 1sec / 82kA peak
Short circuit withstand (Icw) – earth39kA / 1sec / 82kA peak
Degree of protection (IP)IP 4X, 5X, X3, X4
Ambient temperature40° C / 45° C / 50° C
Temperature riseAs per IEC 61439-2
Seismic conformance testZone III & V
Rated insulation voltageupto 1000V
Rated operational voltageupto 690V
Rated impulse withstand8kV
Main busbar ratingupto 5000A
Busbar executionInterleaved / non-Interleaved
Busbar optionsCopper / aluminium
Infeed terminationCable / bus ways / busduct
Infeed entryTop / bottom
Cable feeder accessFront / rear*
ACB cubicleSingle tier
Form of separationupto form 4B
Standard height2300mm
Standard depth1120mm / 560mm
Standard colour shadeRAL 7035

*ACB Compartment – Only Rear access