Timeline
2008
C&S Electric Limited entered a 50:50 joint venture with Efacec Capital SGPS SA of Portugal to create a medium-voltage switchgear manufacturing company at Greater Noida.
MVMedium-voltage switchgear · RMUs · Packaged substations
Engineered for the Grid. Proven in the Field.
Power distribution depends on equipment that can be specified with confidence, integrated with care and supported throughout its working life. C-SEC Technologies designs and manufactures medium-voltage solutions for primary and secondary distribution.
01Choose your equipment
From the primary substation to the last distribution point.
From indoor primary distribution switchgear to compact secondary distribution solutions, explore equipment by function, voltage class and installation environment.
01Primary distribution
Air-Insulated Switchgear
Withdrawable VCB-based assemblies for primary distribution applications.
View technical details →
02Secondary distribution
Ring Main Units
Compact switching and protection solutions for secondary distribution networks.
View technical details →
33 kV
03Secondary distribution
33 kV RMU
Explore C-SEC's publicly announced 33 kV RMU manufacturing milestone and approved product information.
View technical details →
04Integrated
Packaged Substations
Integrated MV, transformer and LV arrangements in an outdoor-duty enclosure.
View technical details →
02Applications
For the network you are building.
No two electrical distribution projects are identical. A utility prioritises fault management and standardisation. An EPC project team needs confirmed dimensions and interface data. An industrial facility weighs safety, serviceability and operational continuity. Start with the application, then discover the equipment and engineering information that fits.
01Power Utilities & DISCOMs
Network switching, standardisation and remote visibility.
02EPC Contractors
Design coordination, technical schedules and site integration.
03Industrial Power Distribution
Plant distribution, safety and continuity.
04Infrastructure & Real Estate
Efficient spatial planning and controlled power distribution.
05Renewables & EV Infrastructure
Appropriate MV interfaces for distributed generation and charging infrastructure.
06OEMs & International
Dependable technical coordination and approved project supply.
Environment photography is illustrative — no C-SEC installation implied.
Explore Applications03Engineering information
Engineering information where it belongs.
Important decisions should not depend on incomplete product summaries. Access approved datasheets, outline drawings, configuration guidance and technical resources in one place. For project-specific interpretation, connect with the C-SEC technical team.
Typical SLD · 2 LBS + 1 CB (catalogue function)
Illustrative
Ratings belong to a configuration, not a brochure.
Rated voltage, insulation level, continuous current and short-circuit duty are read from the approved datasheet for the exact functional arrangement under review.
04Heritage & manufacturing
A legacy of MV engineering.
C-SEC's medium-voltage business traces its engineering lineage to the 2008 C&S Electric–Efacec joint venture. Today, C-SEC continues the development and supply of primary and secondary distribution switchgear and packaged substation solutions.
Timeline
2008
C&S Electric Limited entered a 50:50 joint venture with Efacec Capital SGPS SA of Portugal to create a medium-voltage switchgear manufacturing company at Greater Noida.
Timeline
2014
C&S Electric acquired Efacec's shareholding in the joint venture, and the MV switchgear business was merged with C&S Electric.
Timeline
2020–21
Following the agreement to divest the C&S Electric business to Siemens, the promoters retained the MV switchgear and packaged substation operations through C-SEC Technologies.
Timeline
2025–26
C-SEC announced the commissioning of its first 33 kV RMU, manufactured at Haridwar under licence from Ormazabal, and discussed newer work in automation, F-gas-free technology and vacuum interrupter manufacturing.
Step AMaterial control
Incoming materials and components controlled to the approved product requirements.
Step BMechanical & electrical assembly
Fabrication, wiring and assembly of panels and functional units.
Step CInspection
Inspection of the assembled equipment before verification.
Step DVerification
Testing and verification to the approved product requirements.
05 · In focus
Manufacturing plant at Haridwar, India · catalogue photographIn focus · 33 kV RMU
From manufacturing to commissioning.
C-SEC has reported the successful commissioning of its first 33 kV Ring Main Unit, manufactured at Haridwar under licence from Ormazabal, Spain. Learn about the milestone and request the approved technical information for project evaluation.
- Voltage class
- 33 kV
- Manufactured
- Haridwar
- Commissioned
- Maharashtra
06Manufacturing and verification
Behind each product is a process.
Material control, mechanical and electrical assembly, inspection and verification to the approved product requirements. See how C-SEC organises manufacturing and product quality at Greater Noida and Haridwar.
07Innovation
Ideas for tomorrow's distribution networks.
Distribution networks are becoming more connected, and environmental expectations around switchgear technology are evolving. Follow C-SEC's work in remote-control capability, distribution automation and next-generation insulation research.
08Knowledge
Knowledge built for decisions.
Understand the equipment, the application and the trade-offs before you specify. Explore engineer-led explainers, technical articles and demonstrations.
10Questions
Frequently asked
C-SEC Technologies manufactures medium-voltage equipment for primary and secondary distribution: 12, 24 and 36 kV air-insulated switchgear with draw-out vacuum circuit breakers, a 33 kV outdoor VCB kiosk, SF6-insulated ring main units for indoor, indoor/outdoor and outdoor use, a 33 kV RMU, and 12/24 kV packaged substations.
Primary distribution switchgear, such as an AIS lineup with draw-out VCBs, handles switching and protection at substations and MV receiving points. Secondary distribution equipment, such as a ring main unit, provides compact switching, sectionalising and protection closer to the load. The right choice depends on the project SLD, ratings and site conditions.
Yes. Approved datasheets, GA drawings and typical SLDs are shared for the exact configuration under review. Use Ask an Engineer for technical documents, or Request a Quote with your SLD, schedule and site details for a project-specific review.
Start a conversation
Have a distribution challenge or a defined specification?
Share your system requirements, SLD or project scope. The relevant team can review your enquiry and help identify the next technical and commercial steps.