Product Description

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With 42 years of experience in high-voltage electrical equipment manufacturing, our factory specializes in producing DC vacuum circuit breaker (indoor high voltage vacuum circuit breaker VS1/GXV1-12) for reliable power distribution and protection systems. This DC vacuum circuit breaker adopts a ceramic vacuum interrupter without SF6 gas, maintaining stable vacuum insulation performance above 10⁻⁴Pa. It supports rated currents from 630A to 3150A and short-circuit breaking currents up to 31.5kA, making it suitable for KYN28, HXGN switchgear, photovoltaic substations, industrial power systems, and urban distribution networks.

Our 36,000㎡ production facility is equipped with high-voltage assembly workshops and professional testing equipment for partial discharge, insulation withstand, temperature rise, and mechanical operation tests. Each breaker undergoes complete quality inspection including vacuum interrupter testing, high-voltage performance testing, aging operation testing, and mechanical life verification. All products comply with IEC62271-100, RoHs2.0, REACH, and ISO14001 standards. With environmentally friendly and maintenance-saving characteristics, our DC vacuum circuit breaker provides reliable high-voltage switching solutions for global power engineering companies and electrical distributors.

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For global high-voltage switchgear manufacturers, EPC contractors, and overseas power project suppliers, we provide OEM/ODM customization services for DC vacuum circuit breaker. Customers can customize rated current, breaking capacity, operating mechanism, control functions, and installation dimensions according to technical drawings and project requirements.

Each product includes an 18-month warranty after shipment. Our high and low-voltage electrical equipment production capacity reaches 50,000 units per month. Standard VS1 models are available for quick delivery, with regular products shipped within 5 working days and customized versions completed within 7-15 days. We support mixed orders of different specifications and provide complete services including customized design, production, export protection packaging, and technical support.

Technical Parameters

Core Parameter	Standard Specification
Product Name	DC vacuum circuit breaker (Indoor high voltage vacuum circuit breaker VS1/GXV1-12)
Rated Voltage	12kV AC indoor application
Rated Current	630A / 1250A / 2000A / 3150A
Short-circuit Breaking Current	20kA / 25kA / 31.5kA
Arc Extinguishing Medium	Ceramic vacuum interrupter, SF6-free
Partial Discharge Level	≤10pC
Standard Compliance	IEC62271-100, RoHs2.0, ISO14001

Applications

KYN28 and HXGN indoor high-voltage switchgear protection systems
Photovoltaic and wind power step-up substations
Urban and rural power distribution networks and switching stations
Industrial parks, airports, hospitals, and medium-sized substations
Overseas mining, ports, and oil & gas high-voltage power systems

Customization Capability

Current & Breaking Capacity Customization:

Support 630A-3150A rated current and 20kA-31.5kA breaking capacity options.

Operating Mechanism Customization:

Provide spring operating mechanism or permanent magnetic operating mechanism solutions.

Control Function Customization:

Add remote switching, fault monitoring, and communication modules.

Dimension Customization:

Modify mounting dimensions to match different high-voltage cabinets.

Dimension Customization:

Modify mounting dimensions to match different high-voltage cabinets.

Packaging & Shipping

Internal Protection: Vacuum interrupter protected with shock-resistant foam packaging, and operating mechanism treated with anti-rust protection.
Export Packaging: Reinforced fumigated wooden cases with metal corner protection and moisture-proof wrapping.
Shipping Method: Support domestic delivery and FOB overseas shipment solutions.
After-sales Protection: Damaged products during transportation can be replaced with complete units or key components.