GN27 High Voltage Disconnect Switch
2.Rated Current:630,1250A
3.Features swing-contact design (low pressure/wear, high heat dissipation), low operating torque, and high insulation/strength insulators.
4.Mounts horizontally, vertically, or inclined. Options: pollution/high-altitude/voltage indicator types. 5.Compatible with switchgear or standalone (with CS6-2 mechanism)
- Fast Delievery
- Quality Assurance
- 24/7 Customer Service
Product Introduction
1.GN27 High Voltage Disconnect Switch: Reliable Power Grid Protection
When managing high-voltage power systems, safety and reliability are non-negotiable. The GN27 High Voltage Disconnect Switch delivers precisely that—engineered to isolate circuits efficiently, protect equipment, and ensure uninterrupted power distribution. With a rated voltage of 40.5kV and current options up to 1250A, this switch is designed for demanding grid and industrial applications. Let’s explore why utilities and industrial operators worldwide trust the GN27 for critical operations.
2.Technical Specifications at a Glance
- Rated Voltage: 40.5kV
- Rated Current: 630A / 1250A
- Mounting Flexibility: Horizontal, vertical, or inclined installations
- Optional Features: Pollution-resistant, high-altitude, or voltage-indicator variants
- Mechanism Compatibility: Works with CS6-2 operating mechanisms or integrates into switchgear systems
| Model | Rated voltage (kV) | Rated current（Ａ） | Rated short time withstand current (4s) | Rated peak withstand current (kA) | Lightning impulse withstand voltage | 1min. PF withstand voltage | ||
| Phase to phase/Phase to earth | Across open contacts | Phase to phase/Phase to earth | Across open contacts | |||||
| (kV) | (kV) | |||||||
| GN27-40.5/630-20 | 40.5 | 630 | 20/4s | 50 | 185 | 215 | 95 | 115 |
| GN27-40.5/1250-31.5 | 40.5 | 1250 | 31.5/4s | 80 | 185 | 215 | 95 | 115 |
3.Why the GN27 Stands Out?
1. Advanced Swing-Contact Design
The GN27’s swing-contact mechanism minimizes wear and pressure, ensuring smooth operation even after thousands of cycles. Its optimized heat dissipation design prevents overheating, extending service life in high-load scenarios.
2. Built for Extreme Conditions
Corrosion-resistant insulators and robust mechanical components allow the product to perform in coastal, desert, or arctic environments. It meets IEC 62271-102 and IEEE C37.32 standards, guaranteeing compliance with global grid codes.
3. Low Maintenance, High Efficiency
With a low operating torque and self-cleaning contacts, the GN27 reduces manual intervention. Its modular design allows quick part replacements, cutting downtime during maintenance.
4. Customizable for Unique Needs
Need a vertical configuration for a compact substation? Or a pollution-resistant variant for industrial plants? The GN27 series offers tailored solutions to match site-specific challenges.
4.Real-World Applications
Be used in a wide range of industries.
Industrial Plants
Eliminate power factor penalties in CNC machines and assembly lines while handling surge currents up to 100x rated capacity.
Substation
Stabilizes substation voltage against harmonics and intermittent generation from renewable inverters.
Commercial Buildings
Retrofit aging systems in hospitals or malls with silent (<45dB), flame-retardant capacitors that meet NFPA 70 fire codes.
5.How It Works: Simplified
The GN27 High Voltage Disconnect Switch uses a dual-column rotating mechanism to physically separate circuits. When activated, its blades swing open, creating a visible isolation gap. Reinforced porcelain or composite insulators provide dielectric strength, while mechanical interlocks prevent accidental operation.
6.Quality You Can Trust
Precision Manufacturing
Every GN27 unit undergoes:
- Material Testing: Anti-corrosion coatings validated in salt-spray chambers.
- Performance Trials: 10,000+ mechanical cycles and high-voltage withstand tests.
- Certifications: ISO 9001.
Sustainability Focus
Eco-friendly manufacturing and energy-efficient designs align with global green energy goals, reducing carbon footprints for operators.
7.Why Choose Us?
- 50+ Years of Expertise: Trusted by utilities in 30+ countries.
- End-to-End Support: From installation guidance to 24/7 technical assistance.
- Smart Grid Ready: Explore IoT-enabled variants for predictive maintenance (inquire for details).
8.FAQ
1. How does the GN27 handle extreme temperatures?
Its stainless-steel components and silicone-coated insulators resist thermal expansion, ensuring stable performance from -40°C to +55°C.
2. Can it integrate with existing switchgear?
Yes—the GN27 is compatible with most major brands. Share your system specs, and we’ll confirm compatibility.
3. What’s the lead time for bulk orders?
Standard orders ship in 6–8 weeks. Expedited options available for urgent projects.
4. Do you provide on-site training?
Absolutely. Our engineers will train your team on safe operation and maintenance protocols.
9.Contact Us
Email xaxd_electric@163.com for pricing, technical documents, or a consultation. Let’s build a safer, smarter power network together with the GN27 High Voltage Disconnect Switch.
10.Factory Show
11.Equipment Display
12.Application Cases
State Grid systems, power engineering, steel and metallurgy, petrochemicals, rail transportation, energy and water conservancy, construction, environmental protection, and renewable energy sectors
13.Team and Exhibition
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