
Siemens SIMOPRIME Technology Partner
SIMOPRIME medium-voltage switchgear, built by SEGA M
Type-tested, metal-clad, air-insulated switchgear from 7.2 kV to 24 kV with withdrawable vacuum circuit-breakers. No SF6 gas, all switching behind a closed door.
Designed around the operator
Internal arc classified
IAC A FLR up to 40 kA for 1 s. Every switching operation is done with the high-voltage door closed.
Maintenance on a live switchboard
LSC2B service continuity with earthed metal shutters, so adjacent panels stay energised during work.
Vacuum, no SF6
Maintenance-free vacuum circuit-breakers. No SF6 gas and no heat-shrink insulation that ages.
Withdrawable trucks
Each circuit-breaker sits on its own truck and is exchanged without switching off the busbar.
Two versions, one family
| Rating | SIMOPRIME 12 kV | SIMOPRIME A4 24 kV |
|---|---|---|
| Rated voltage | 12 kV | 24 kV |
| Power-frequency withstand voltage | 28 kV | 50 kV |
| Lightning impulse withstand voltage | 75 kV | 125 kV |
| Short-time withstand current (3 s) | 40 kA | 25 kA |
| Peak withstand current | 100 / 104 kA | 63 kA |
| Busbar current | up to 3,600 A | up to 2,500 A |
| Circuit-breaker panel width | 600 / 800 mm | 800 / 1,000 mm |
| Panel depth | 1,860 mm | 1,900 mm |
| Circuit-breaker | withdrawable vacuum | withdrawable vacuum, type 3AH |
Panel types
- Circuit-breaker panel
- Contactor panel
- Disconnecting panel
- Metering panel
- Bus sectionaliser
- Bus riser
- Load-break switch panel
Where it works
- Power supply companies
- Power stations
- Cement industry
- Iron and steel works
- Mining industry
- Chemical and petrochemical plants
- Petroleum industry and pipelines
- Emergency power supply
- Textile, paper and food industries




From drawing to delivery
Send your drawings
Single-line diagram, BOQ or specification. A short description of the load is enough to start.
Receive the offer
Our export team replies within 24 hours and prepares the technical and commercial offer.
Approve the drawings
We send the layout drawings for your approval before production starts.
Build and routine test
Every board is built in our factory and routine tested before it leaves.
Ship
Lead time from stock items ready at once to about 6 weeks for larger projects.
Questions buyers ask us
Which voltages do you build?
SIMOPRIME from 7.2 kV to 17.5 kV (12 kV type) and SIMOPRIME A4 for 24 kV. We do not build switchgear above 24 kV.
Does SIMOPRIME use SF6?
No. It is air-insulated switchgear with vacuum circuit-breakers.
Is the switchgear type tested?
Yes, SIMOPRIME is type tested to IEC 62271-200 with internal arc classification.
Can you supply the low-voltage side too?
Yes. We build SIVACON S8 switchboards and SIBOARD distribution boards in the same factory, so one supplier covers the whole substation.

Send us your single-line diagram. We reply within 24 hours.
Tell us the project, the ratings and the destination country. Our export team prepares the offer and the drawings.




