Medium Voltage Switchgear
12 kV to 40.5 kV metal-clad switchgear, ring main units, outdoor switching stations, vacuum breakers and MV capacitor banks, type-tested at XIHARI and Hunan CEPRI.
Product family
7 product families
Schneider MVnex medium-voltage switchgear
Armoured withdrawable MV switchgear, 12 kV
Armoured withdrawable MV switchgear, 40.5 kV
Ring main units, 12 kV
Outdoor box-type switching station
Vacuum circuit breakers, indoor and outdoor
MV automatic reactive-power compensation
Selection guide
Which board is used where?
Selection depends on where the supply comes from, the current to be carried, the site conditions and whether the installation can be interrupted for maintenance. Final values follow the single-line diagram, selectivity study and short-circuit calculation.
| Family | Location and role | Typical rating | Key equipment |
|---|---|---|---|
| MVnex | Data centre and industrial intakes to Schneider specification | 12 / 24 kV; ≤ 4000 A; 40 kA | HVX sealed-pole breaker, CE, Schneider authorisation |
| KYN28-12 | 12 kV substations, incomer, feeder and coupler | 630–4000 A; 16–50 kA | Withdrawable VS1 breaker truck, XIHARI reports |
| KYN61-40.5 | 35 kV-class substations, storage and collector stations | 1250–2500 A; 31.5 kA | ZN85 / HVX40 / VD4 trucks |
| Ring main units | Distribution loops, industrial estates, data-hall rings | 630 A; 20–25 kA | SF6, vacuum, eco-gas or solid-insulated |
| Outdoor switching station | Sectionalising on distribution networks | 630 A; 25 kA 4 s | Stainless double-wall, up to 8 branches |
| TBBZ-12 capacitor bank | 6 / 10 kV reactive compensation | PF > 0.9 | Vacuum-contactor switching, per-group protection |
Design principles
Standards and design principles
IEC 62271-200 type tests
Dielectric, temperature-rise, short-time and internal-arc tests at XIHARI and Hunan CEPRI on every switchgear series.
Insulation medium
Air-insulated metal-clad, SF6 or vacuum ring main units, and non-SF6 eco-gas and solid-insulated options.
Breaker technology
Vacuum interrupters throughout: VS1, ZN85, HVX and outdoor ZW32 / ZW20.
Protection and control
Microprocessor relays, four-remote telemetry and FTU-ready ring main units.
Production process
From enquiry to commissioning
Design, production and testing sit under one roof, so responsibility stays at one point from the first drawing to site support.
- Enquiry and analysisSend a single-line diagram, load list or panel schedule. An engineer confirms voltage, short-circuit level, forms of separation and applicable standards within 24 hours.
- Proposal and drawingsBudgetary quotation in five working days, then general-arrangement drawings, busbar sizing and a bill of materials for approval.
- Order and engineeringApproved drawings release procurement of Schneider, ABB or specified components and sheet-metal programming.
- Fabrication and assemblyLaser cutting, CNC bending, powder coating, busbar processing, primary assembly and secondary wiring in Shaoshan.
- Factory acceptance testDielectric, loop-resistance, insulation, earth-continuity, IP and current-injection tests; customers and consultants welcome to witness.
- Delivery and after-salesExport packing, sea or air freight, commissioning support and a 7×24 service line with Schneider-trained engineers.
Let's confirm the right board for your project
Send a single-line diagram, load list or a plain list of requirements. Our engineers set the board type, form of separation and ratings with you.