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This product is an encapsulated, metal-enclosed vacuum load-break switch–fuse combination unit, a new-generation vacuum switching device developed based on a unique design concept combined with market requirements. It is widely used in indoor metal-clad, air-insulated switchgear, and can operate safely and reliably on the corresponding voltage-class grid within its rated technical parameters.
Features:
The withdrawable structure makes it easy to rack the unit in and out of the cabinet, simplifying inspection and replacement; the encapsulated-pole structure improves the product's insulation reliability and environmental adaptability, and combined with the vacuum interrupter delivers the dual functions of load control and short-circuit protection, with stable operation and good maintenance-free performance.
Applications:
Suitable for use with metal-enclosed switchgear, widely serving substations, distribution rooms, and various industrial/mining enterprises' distribution systems, undertaking line load control and short-circuit fault protection, and is an ideal combination switching device in ring-main supply systems.
| Item | Unit | Parameter | |
| VZF-12/T630-20 Vacuum Load Switch |
VZF(R)-12/T125-50 Vacuum Load Switch – Fuse Combination Unit |
||
| Rated Voltage | kV | 12 | 12 |
| Power Frequency Withstand Voltage (Phase to Phase, Phase to Earth) | kV | 42 | 42 |
| Lightning Impulse Withstand Voltage (Phase to Phase, Phase to Earth) | kV | 75 | 75 |
| Rated Current | A | 630 | 125(Fuse) |
| Rated Short-Circuit Breaking Current | kA | - | 50(Fuse) |
| Rated Short-Time Withstand Current | kA | 20 | - |
| Rated Peak Withstand Current | kA | 50 | - |
| Rated Short-Circuit Making Current | kA | 50 | - |
| Rated Cable Charging Breaking Current | A | 16 | - |
| Rated Transfer Current | A | - | 3150 |
| No-Load Transformer Switching | kVA | 1250 | |
| Electrical Life | Times | 10000 | |
| Partial Discharge Level | PC | ≤ 5 | |
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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