Switchgear & Distribution
KYN28 Medium Voltage Metal-Clad Switchgear
Built to IEC 62271-200 (equivalent to GB/T 3906), this KYN28 indoor metal-clad withdrawable switchgear handles medium voltage power receiving, distribution, protection, and monitoring from 3.6 to 12kV. A withdrawable vacuum circuit breaker truck, compartmentalized cold-rolled steel body, and five-anti interlock system support safe operation in substations and industrial power systems. Voltage class, current rating, and panel configuration are engineered to your single-line diagram as a B2B, OEM/ODM-ready platform.
Key Features
Built to IEC 62271-200 for reliable medium voltage power receiving and distribution.
Metal-Clad Withdrawable Design
A compartmentalized metal-clad body separates busbar, breaker, cable, and relay sections for safety and fault containment.
Withdrawable Vacuum Circuit Breaker
The VCB truck racks between service, test, and isolated positions for safe maintenance without de-energizing adjacent panels.
Five-Anti Interlock Protection
Mechanical interlocks prevent mis-operation, protecting personnel and equipment during switching and maintenance.
3.6–12kV Rated Voltage
Standard voltage classes from 3.6kV to 12kV, with extended configurations available up to 24kV.
Up to 4000A Rated Current
Standard current ratings from 630A to 4000A, with higher busbar current classes available on request.
OEM/ODM Ready
Voltage class, current rating, and panel layout engineered to your single-line diagram and project specification.
OEM & ODM Capabilities
Built as a B2B platform product for EPC contractors, system integrators, and substation project developers.
Custom Voltage Class
Configured to your system voltage — 3.6kV, 7.2kV, 12kV, or extended classes up to 24kV.
Custom Current Rating
Rated current and busbar capacity engineered to your load requirements, from 630A up to high-current busbar classes.
Breaker Brand & Model Options
Choice of vacuum circuit breaker brands and models to match your project's component standard.
Panel Layout to Single-Line Diagram
Incoming, outgoing, metering, and bus-tie panels configured to your specific single-line diagram.
Finish & Color Options
Standard powder-coat finish; RAL color matching available for B2B partners.
Factory-Direct OEM/ODM Production
Direct manufacturer production supports both single-panel projects and larger substation-scale volume orders.
Technical Specifications
Reference values below reflect the standard KYN28 platform range. As a build-to-order product, exact ratings are configured to your single-line diagram.
| Product Type | KYN28 Indoor Metal-Clad Withdrawable AC Switchgear |
|---|---|
| Applicable Standard | IEC 62271-200 (equivalent to GB/T 3906) |
| Rated Voltage | 3.6 – 12 kV (extended range up to 24kV available) |
| Rated Current | 630 – 4000 A (higher busbar ratings available) |
| Rated Short-Circuit Breaking Current | 16 – 50 kA |
| Enclosure Protection Rating | IP4X (compartment IP2X) |
| Certification | CQC |
| Enclosure Material | Cold-rolled steel, powder-coated finish |
| Parameter | Standard Configuration | Notes |
|---|---|---|
| Structure | Metal-clad, withdrawable VCB truck | Five-anti interlock protection |
| Rated Voltage | 3.6–12kV | Extended range to 24kV available |
| Rated Current | 630–4000A | Higher busbar ratings on request |
| Application | Substations, industrial plants | Power receiving & distribution, motor starters |
| Configuration | Rated Voltage | Rated Current | Short-Circuit Rating | Protection Rating | Breaker Type | Typical Application |
|---|---|---|---|---|---|---|
| Standard KYN28 Panel | 3.6–12kV | 630–4000A | 16–50kA | IP4X | Withdrawable VCB | Substation / industrial power receiving & distribution |
| Extended Voltage Class | Up to 24kV | To spec | To spec | IP4X | Withdrawable VCB | Higher voltage class distribution networks |
| High Busbar Current | 3.6–12kV | Up to 6300A (busbar) | To spec | IP4X | Withdrawable VCB | Large substation main/branch busbar applications |
| OEM Custom Build | To spec | To spec | To spec | To spec | To specification | Project-specific single-line diagram, private label |
Construction & Configuration
Every KYN28 panel is compartmentalized for safety, with a withdrawable breaker truck at the core of the design.
Metal-Clad Compartmentalized Body
Cold-rolled steel construction separates busbar, breaker, cable, and relay compartments for safety and fault containment.
Withdrawable VCB Truck
The vacuum circuit breaker truck racks between service, test, and isolated positions for safe maintenance access.
Five-Anti Interlock System
Mechanical interlocks prevent incorrect breaker operation, door opening, or truck movement out of sequence.
Relay & Control Compartment
A dedicated low-voltage compartment houses protection relays, metering, and control/indication devices.
Cable Compartment
A separate cable compartment provides space for incoming/outgoing cable termination and instrument transformers.
Pressure Relief Venting
Pressure relief channels direct internal arc fault gases safely away from the operator area.
Standards & Test Documentation
Design and manufacturing align with recognized medium-voltage switchgear standards, with full OEM/ODM documentation support.
IEC 62271-200 / GB/T 3906 Compliant Design
Designed in line with IEC 62271-200 metal-enclosed switchgear requirements, equivalent to China's GB/T 3906 standard.
IP4X Enclosure Protection
Enclosure rated to IP4X with IP2X compartment separation, providing protection against solid objects and accidental contact with internal live parts.
Build-to-Diagram OEM/ODM Production
Voltage class, current rating, and panel configuration are engineered to your single-line diagram, with OEM/ODM documentation support for EPC contractors and system integrators.
Get a Custom OEM Quote for Your KYN28 Switchgear
Share your single-line diagram, voltage class, or current rating and our engineering team will configure a KYN28 panel lineup to match your project.