Medium-Voltage Switchgear
GTXGN-12 Solid-Insulated Ring Main Unit
Model GTXGN-12
A solid-insulated ring main unit using vacuum switching and epoxy-resin insulation for high-voltage live parts. Designed for compact distribution installations with the switching and protection arrangement selected for the project.
Share your rated data, quantity and project requirements.
View this model in our 2026 catalog ↗
Project configuration reviewTechnical documentation support
Product Overview
GTXGN-12 solid-insulated ring main unit is a fully insulated, sealed switchgear solution for 12 kV distribution systems. It is commonly used for cable ring networks and distribution terminals and residential and industrial distribution projects, with the final selection based on rated data, drawings, and site conditions.
EPC companies, electrical contractors, utility project teams, panel builders, and industrial buyers can request configuration review for solid insulated ring main unit. Please send single-line diagram, rated voltage, rated current, short-circuit level, protection scheme, busbar arrangement, and cabinet layout, quantity, destination, and any project standard requirements for quotation.
Model and Meaning
Technical Specifications
GTXGN-12 Technical Parameter Table
Review the GTXGN-12 values, units, rated data, and project requirements before quotation.
| Project | Unit | Data |
|---|---|---|
| Rated voltage | kV | 12 |
| Rated frequency | Hz | 50 |
| Rated current | A | 630 / 1250 |
| Rated insulation level – Power frequency withstand voltage – Fracture surface | kV | 48 |
| Rated insulation level – Power frequency withstand voltage – Alternate with | kV | 42 |
| Rated insulation level – Power frequency withstand voltage – Relatively | kV | 42 |
| Rated insulation level – Lightning impulse withstand voltage – Fracture surface | kV | 85+ |
| Rated insulation level – Lightning impulse withstand voltage – Alternate with | kV | 75 |
| Rated insulation level – Lightning impulse withstand voltage – Relatively | kV | 75 |
| Rated short-circuit breaking current (1s) | kA | 25 / 31.5 |
| Rated short-time withstand current (4s) | kA | 25 / 31.5 |
| Rated peak withstand current (1p) | kA | 63 / 80 |
| Rated short-circuit closing current (peak) (1ma) | kA | 63 / 80 |
| Degrees of protection provided by enclosure | IP4X | |
| Operating mode | Spring energy storage type |
Installation Dimensions / Drawing
Applications
GTXGN-12 is mainly selected for cable ring networks and distribution terminals and residential and industrial distribution projects. The final application should match the confirmed solid insulated ring main unit, rated data, and site installation conditions.
- Cable ring networks and distribution terminals
- Residential and industrial distribution projects
- Substations, switch stations, and cable branch box projects
Ordering Instructions / Information Required for Quotation
ForGTXGN-12, send single-line diagram, rated voltage, rated current, short-circuit level, protection scheme, busbar arrangement, and cabinet layout, quantity, destination, and the expected delivery schedule. The engineering review will be based on the selected solid insulated ring main unit and project drawing.
ORDERING INSTRUCTIONS
- State the required GTXGN-12 configuration, quantity, project destination, and intended application.
- Provide single-line diagram, rated voltage, rated current, short-circuit level, cabinet quantity, component configuration, and protection requirements for technical review.
- Confirm the final cabinet outline, foundation channel, cable trench, busbar interface, and cabinet arrangement drawing before final production or installation planning.
- List any special environmental, wiring, communication, metering, protection, or component requirements in the inquiry.
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