Medium-Voltage Switchgear
KYN28-12 12kV Metal-Clad Switchgear
Model KYN28-12
Metal-clad withdrawable switchgear for three-phase, 50 Hz networks from 3.6 to 12 kV. Provides power distribution, circuit control, monitoring and protection, with busbar arrangements selected for the installation.
Share your rated data, quantity and project requirements.
View this model in our 2026 catalog ↗
Project configuration reviewTechnical documentation support
Product Overview
KYN28-12 armored removable AC metal-enclosed switchgear is suitable for receiving and distributing electrical energy and for circuit control, monitoring, and protection in. It is commonly used for power distribution systems and single-bus or segmented bus systems, 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 medium voltage switchgear. 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
- K: high-voltage armored switch cabinet
- Y: removable type
- N: indoor type
- 28: design serial number
- 12: rated-voltage class
- Confirm the vacuum circuit breaker, spring operating mechanism, rated current, short-circuit breaking current, and primary scheme number
Technical Specifications
KYN28-12 Technical Parameter Table
Review the KYN28-12 values, units, rated data, and project requirements before quotation.
| project | unit | data |
|---|---|---|
| Rated voltage | kV | 3 / 6 / 7.2 / 12 |
| Rated frequency | Hz | 50 |
| Circuit breaker rated current | A | 630 / 1250 / 1600 / 2000 / 2500 / 3150 |
| Switch cabinet rated current | A | 630 / 1250 / 1600 / 2000 / 2500 / 3150 |
| Rated short-term withstand current (4S) | kA | 16 / 20 / 25 / 31.5 / 40 / 50 |
| Rated peak withstand current (peak value) | kA | 40 / 50 / 63 / 80 / 100 / 125 |
| Rated short circuit breaking current | kA | 16 / 20 / 25 / 31.6 / 40 / 50 |
| Rated short circuit closing current (peak value) | kA | 40 / 50 / 63 / 80 / 100 / 125 |
| Rated insulation level – 1min power frequency withstand voltage | kV | 24 / 32 / 42 |
| Rated insulation level – Lightning impact withstand voltage | kV | 40 / 60 / 75 |
| Protection level | The housing is IP4X; isolation room and circuit breaker room door is IP2X when it is opened |
Installation Dimensions / Drawing
Applications
KYN28-12 is mainly selected for power distribution systems and single-bus or segmented bus systems. The final application should match the confirmed medium voltage switchgear, rated data, and site installation conditions.
- Power distribution systems
- Single-bus or segmented bus systems
- Distribution projects requiring removable medium-voltage switchgear
Ordering Instructions / Information Required for Quotation
ForKYN28-12, 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 medium voltage switchgear and project drawing.
ORDERING INSTRUCTIONS
- Provide the main-circuit scheme number, purpose, single-line system diagram, distribution-room floor layout, and switchgear arrangement.
- State the requirements for control, measurement, protection, locking, and automatic devices.
- Provide the models, specifications, and quantities of the main electrical components.
- If a busbar bridge is required, provide its rated current-carrying capacity, span, height from the ground, and other requirements.
- State any special environmental conditions and other special requirements.
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