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ZN153-12 Three-Position Integrated Vacuum Circuit Breaker
Product Overview
The ZN153-12 three-position integrated vacuum circuit breaker is a medium voltage switching device designed for indoor metal-enclosed switchgear applications. Its integrated design combines circuit breaking, disconnecting, and grounding functions into a single unit, offering compact structure, reliable performance, and simplified maintenance.
This model is especially suitable for international power systems that require compact equipment for limited spaces, high safety standards, and compliance with global certifications.
Key Features
Three-position function: ON / OFF / GROUNDING in one integrated mechanism.
Fully enclosed indoor design suitable for metal-clad MV switchgear.
Compact structure reduces installation space.
Vacuum interrupter technology ensures arc-free breaking and long service life.
Meets GB1984, IEC 62271-100, and relevant international standards.
Designed for frequent operation and long-term stability.
Mechanically interlocked to prevent misoperation.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | ZN153-12 |
| Rated Voltage | 12 kV |
| Rated Current | 630A, 1250A |
| Rated Short-Circuit Breaking Current | 25kA, 31.5kA |
| Rated Short-Circuit Making Current | 63kA, 80kA (peak) |
| Rated Short-Time Withstand Current | 25kA/4s, 31.5kA/4s |
| Mechanical Life | 10,000 operations |
| Electrical Life | 30 full short-circuit interruptions |
| Operating Mechanism | Spring operating mechanism |
| Insulation Level | Power frequency withstand 42kV, lightning impulse 75kV |
| Standards Compliance | GB1984, IEC 62271-100 |
| Application | Indoor Metal-Clad MV Switchgear |
Typical Applications
The ZN153-12 is widely applied in:
Industrial medium voltage switchgear
Data centers and commercial facilities
Utility distribution substations
Renewable energy integration (solar and wind farms)
International export projects requiring IEC compliance
Certifications & Compliance
GB1984 (Chinese National Standard for AC High-Voltage Circuit Breakers)
IEC 62271-100 (International Standard for AC Circuit Breakers)
Custom export models are available for IEC, UL, or ANSI market requirements.
Advantages of Export Projects
Fully compliant with international certifications
Flexible design for multiple MV switchgear configurations
Cost-effective solution with fast production cycles
Technical support is available for export documentation and certification
Real Project Experience
Our ZN153-12 series has been successfully delivered to export projects in Southeast Asia, the Middle East, and Europe, fully meeting IEC and local grid authority requirements.
FAQ - Frequently Asked Questions
1. Can ZN153-12 be customized for 24kV systems?
Currently, ZN153-12 is designed for 12kV applications. For 24kV requirements, please contact us for available alternative models.
2. What is the typical lead time for export orders?
Standard lead time is 25–35 working days, depending on order quantity and customization.
3. What certifications are provided for international shipments?
Full type test reports, quality certifications, and technical documents are provided according to customer requirements.
4. Is on-site installation support available?
Yes, we can provide online technical support and, when necessary, dispatch engineers for installation guidance.
5. What’s the minimum order quantity for export?
MOQ is flexible. Please contact us for a customized quotation based on your project size.
Why Choose Wei Shoe Elec?
10+ years of international MV switchgear manufacturing experience.
Full export certification support (IEC, UL, ANSI standards).
Custom design flexibility for special project needs.
Experienced technical team available for your engineering consultation.
Proven export history with satisfied clients worldwide.
Contact Us for Quotation and Technical Support
Prepared by Thor, Electrical Engineer at Wei Shoe Elec
📞 +86-0577-62788197
📱 WhatsApp: +86 159 5777 0984
📧 [email protected]
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