Air-Insulated Switchgear · CSA 12 / CSA 12 N
12 kV Air-Insulated Switchgear with Draw-Out VCB
Designed for primary medium-voltage distribution applications, C-SEC's 12 kV class air-insulated switchgear combines a modular panel arrangement with a draw-out vacuum circuit breaker. Its purpose is to support switching, protection and controlled access in an engineered indoor installation.
CSA 12 panel · catalogue photograph01
Why this configuration
The draw-out breaker arrangement can support planned inspection and maintenance workflows, subject to the interlocking and operational procedure specified for the delivered switchgear. A modular architecture permits a project-specific lineup rather than a one-size-fits-all installation.
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Highlights
- Modular and extensible lineup
- Front-side operation in listed configuration
- Draw-out VCB
- Interlocking and internal-arc considerations
- Configurable protection and auxiliary equipment
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Where it is used
Primary distribution at substations, industrial MV receiving/distribution points and suitable infrastructure installations where the network design requires this switchgear type.
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Technical summary
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Configuration visual
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Documents
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Buying question
Have a switchgear schedule or single-line diagram? Share the key electrical parameters and the required panel functions for a technical review.
Features
General characteristics
- 01Modular construction
- 02Extensible lineup
- 03Small installation area
- 04Operated exclusively from the front
- 05Internal arc resistant design
- 06Racking-in and racking-out of MV breaker behind arc-proof doors
- 07Several optional equipment available
As listed in the C-SEC MV Switchgear Catalogue (2022).
Typical functions · Typical lineup
Select a unit
Typical arrangement drawn from the catalogue's typical functions. Your project configuration comes from the network SLD.
Specifications
Technical data
Catalogue model · CSA 12 / CSA 12 N
| Characteristic | Unit | CSA 12 · draw-out VCB | CSA 12 N · floor-mounted VCB |
|---|---|---|---|
| Electrical data | |||
| Rated voltage | kV | 12 / 17.5* | 12 |
| Lightning impulse withstand (1.2/50 µs) | kVp | 75 / 95* | 75 / 95* |
| Power-frequency withstand (50 Hz, 1 min) | kVrms | 28 / 38* | 28 / 38* |
| Rated frequency | Hz | 50 | 50 |
| Rated current | A | 630 to 3150 | 630 to 1250 |
| Breaking current | kArms | 25 / 40 | 26.3 |
| Making current | kAp | 63 / 100 | 65.75 |
| Rated short-time current | kArms | 25 for 3 s / 40 for 3 s | 26.3 for 3 s |
| Mechanical & service | |||
| Protection degree | — | IP4X (others on request) | IP5X (others on request) |
| Standard colour | — | RAL 7035 (others on request) | RAL 7035 (others on request) |
| Ambient temperature | °C | Basic −5 … +40; option −10 … +55 | Basic −5 … +40; option −10 … +55 |
| Dimensions | |||
| Height | mm | 2150 | 1950 |
| Depth | mm | 1560 | 1750 |
| Width — up to 1250 A, 25 kA (CSA 12 N: 26.3 kA) | mm | 600 | 600 |
| Width — 1600 A, 25 kA | mm | 750 | — |
| Width — up to 1250 A / 1600 A, 40 kA | mm | 750 | — |
| Width — 2000 A / 2500 A, 25 & 40 kA | mm | 850 | — |
| Width — 3150 A, 25 & 40 kA | mm | 1000 | — |
Source: C-SEC Medium Voltage Switchgear Catalogue (2022, QMS/FRM/SDM/72-04 R2 Issue 05). Technical characteristics vary by model and project configuration — refer to the latest approved C-SEC datasheet.
* Values marked with an asterisk are printed as alternatives in the catalogue (12 kV / 17.5 kV). Engineering to confirm the rating matrix before release.
Documents
Technical documents
Only approved files are published. Project-specific documents are shared on request.
- Download
PDF · 2.2 MB · Rev. R2 Issue 05
MV Switchgear Catalogue (2022)
- Request for your configuration →
On request
Product datasheet
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On request
GA / footprint drawing
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On request
Typical SLD
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On request
Installation prerequisites
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On request
Test / standards declaration
Questions about the 12 kV AIS
It refers to a vacuum circuit breaker arrangement designed to move between defined service/test/isolated positions as provided by the equipment design; safe use must follow the approved interlocks and operating instructions.
Suitability depends on the approved short-circuit rating of the selected configuration and the calculated network fault level.
Request the approved GA drawing for the exact panel configuration.
Enquiry
Project-specific quotation
Share the key electrical parameters and the required panel functions for a technical review.
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Air-insulated panel system with draw-out VCB for primary schemes requiring a 36 kV class solution.
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CSS33 kV · 36 kV
33 kV Outdoor VCB Kiosk
A distinct outdoor equipment offering integrating the CB, CTs, PTs and protection for MV switching.
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