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This product is an indoor rotary-type high-voltage disconnect switch, a new type of rotating-blade disconnect switch. Its main structure fixes two sets of insulators and contacts on the upper and lower planes of a common three-phase base frame, achieving the switch's opening and closing action through the rotating blade, suitable for 12kV three-phase AC distribution systems.
Features:
The rotary switching structure provides reliable, effort-saving operation, with good contact and stable conductivity; the overall structure is compact, occupying a small installation footprint, making it convenient to arrange flexibly within various types of high-voltage switchgear and distribution equipment.
Applications:
Widely used in the distribution systems of substations, distribution rooms, and industrial/mining enterprises, serving as an isolation and protection device during equipment maintenance, and can also be used for line switching operations, and is a commonly used basic isolation component in medium-voltage distribution systems.
| item | Product Model and Specifications | ||||
| GN30-12/400-12.5 | GN30-12/630-20 | GN30-12/1000-31.5 | GN30-12/1250-31.5 | ||
| GN30-12D/400-12.5 | GN30-12D/630-20 | GN30-12D/1000-31.5 | GN30-12D/1250-31.5 | ||
| Rated Voltage (kV) | 12 | ||||
| Rated Current (A) | 400 | 630 | 1000 | 1250 | |
| Thermal Withstand Current (kA) | 12.5 | 20 | 31.5 | ||
| Thermal Withstand Time (s) | 4 | ||||
| Dynamic Withstand Current (kA) | 31.5 | 50 | 80 | ||
| Rated Insulation Level |
Lightning Impulse Withstand Voltage (kV) | Phase to phase, phase to earth: 75, break: 85 | |||
| 1min Power Frequency Withstand Voltage (kV) | Phase to phase, phase to earth: 42, break: 48 | ||||
Zhejiang Yingchuang Electric Co., Ltd. was established in March 2018 and is a qualified approved supplier for State Grid and China Southern Power Grid. We specialize in the R&D and manufacturing of high-voltage electrical equipment, including primary-and-secondary integrated pole-mounted circuit breakers, indoor/outdoor vacuum circuit breakers, disconnecting switches, ring main units, and complete switchgear assemblies. Guided by "craftsmanship quality and sincere service," we offer full OEM/ODM customization across our entire product range. In 2024, we were recognized as a Provincial Innovative SME and a National High-Tech Enterprise.
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1948056561@qq.com
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Building 5, No. 88, Zhandong Road, Dianhou Industrial Zone, Liushi Town, Yueqing City, Wenzhou, Zhejiang Province, China
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