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KYN28A Series - Metal-Clad Withdrawable AC Switchgear (Improved Design)
The KYN28A series is an improved variant of the KYN28 metal-clad withdrawable switchgear. Features enhanced compartmentalization, advanced interlocking systems, and VCB/VBI vacuum breaker integration for reliable 12kV power distribution.
Model Number Breakdown
Applications
Power generation and distribution
Industrial plant MV distribution
Commercial building power supply
Utility distribution substations
Key Features
- Improved compartmentalization over standard KYN28
- Advanced mechanical and electrical interlocks
- Withdrawable VCB for easy maintenance
- Type-tested to IEC 62271-200
Specifications Range
All specifications and dimensions can be customized upon request
Model Selector
| Key parameters | Model Range |
|---|---|
| Rated Voltage | 12 |
| Rated Current | 630–3150 A |
| Breaking Current | 25–40 kA |
| Short-time Withstand Current | 25–40 kA |
| Protection Level | IP4X |
| Mechanical Life | 10000 ops |
| Operating Mechanism | Spring-operated (integrated VCB) |
| Standard | GB3906, IEC 62271-200 |
| Compare | Model | Series | Rated voltage (kV) | Current (A) | Frequency (Hz) | Standard | Weight | Dimensions |
|---|---|---|---|---|---|---|---|---|
| KYN28A-12/630-25 | KYN28A | 12 | 630 | 50 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/630-25(60Hz) | KYN28A | 12 | 630 | 60 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/630-31.5 | KYN28A | 12 | 630 | 50 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/630-31.5(60Hz) | KYN28A | 12 | 630 | 60 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/630-40 | KYN28A | 12 | 630 | 50 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/630-40(60Hz) | KYN28A | 12 | 630 | 60 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/1250-25 | KYN28A | 12 | 1250 | 50 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/1250-25(60Hz) | KYN28A | 12 | 1250 | 60 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/1250-31.5 | KYN28A | 12 | 1250 | 50 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/1250-31.5(60Hz) | KYN28A | 12 | 1250 | 60 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/1250-40 | KYN28A | 12 | 1250 | 50 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/1250-40(60Hz) | KYN28A | 12 | 1250 | 60 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/2000-25 | KYN28A | 12 | 2000 | 50 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/2000-25(60Hz) | KYN28A | 12 | 2000 | 60 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/2000-31.5 | KYN28A | 12 | 2000 | 50 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/2000-31.5(60Hz) | KYN28A | 12 | 2000 | 60 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/2000-40 | KYN28A | 12 | 2000 | 50 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/2000-40(60Hz) | KYN28A | 12 | 2000 | 60 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/2500-25 | KYN28A | 12 | 2500 | 50 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/2500-25(60Hz) | KYN28A | 12 | 2500 | 60 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/2500-31.5 | KYN28A | 12 | 2500 | 50 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/2500-31.5(60Hz) | KYN28A | 12 | 2500 | 60 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/2500-40 | KYN28A | 12 | 2500 | 50 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/2500-40(60Hz) | KYN28A | 12 | 2500 | 60 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/3150-25 | KYN28A | 12 | 3150 | 50 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/3150-25(60Hz) | KYN28A | 12 | 3150 | 60 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/3150-31.5 | KYN28A | 12 | 3150 | 50 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/3150-31.5(60Hz) | KYN28A | 12 | 3150 | 60 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/3150-40 | KYN28A | 12 | 3150 | 50 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm | |
| KYN28A-12/3150-40(60Hz) | KYN28A | 12 | 3150 | 60 | GB3906, IEC 62271-200 | 1000 kg | 800×1500×2300 mm |
Product Drawing
High Voltage Switchgear - KYN28A-12/630-25
Note: This is a general product illustration. For detailed technical drawings and specifications, please contact our engineering team.
Selection Guide
Voltage
12 kV class metal-clad switchgear for distribution.
Breaker
Vacuum circuit breaker, withdrawable for easy maintenance.
Application
Substations, industrial plants and utility distribution.
- Frequently Asked Questions
What is KYN28A?
A metal-clad withdrawable HV switchgear panel for 12 kV distribution.
What breaker does it use?
Vacuum circuit breakers, with withdrawable construction for easy maintenance.
Where is it used?
Substations, industrial plants and utility distribution.
Instant Selection & Quote Calculator
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Certification
The values below are computed from what you selected above. Anything that cannot be computed yet is shown as an em dash — never as zero.
Iₙ = S / (√3·U) · I_sc = 100·Iₙ / uₖ · S_sc = √3·U·I_sc · I_p = k·Iₖ
Still required to complete the calculation: rated capacity S, impedance voltage uₖ, short-time or peak withstand current.
Per-model values (P0 / Pk / uₖ declared by the factory, losses, noise, temperature rise, dimensions, weight) are not in the product library: those rows stay at an em dash until the factory parameter sheet is supplied. An em dash means the value is unavailable — it is never rendered as zero.
Reference prices are for estimation only and do not constitute a formal offer.
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