The Siemens Medium Voltage Switchgear 8DJH is a fixed, fully insulated and fully sealed SF₆ gas-insulated metal-enclosed switchgear.
It is the flagship product of Siemens in the medium-voltage ring network distribution field, with voltage ratings ranging from 7.2kV to 24kV. It represents a compact, safe and maintenance-free ring network solution.
• Operating Unit: Includes circuit breaker trip/close mechanism, isolator operating components, and status indication elements (potential indicator, trip/close indicators);
• Control and Monitoring Unit: Features an integrated display screen and potential indicator to display operational parameters and detect energized status;
• Internal Components: Equipped with current transformers, grounding switches, and other devices to support power parameter acquisition and safety interlocking.
• Safety Protection: Multiple mechanical/electrical interlocks (e.g., preventing closing when the grounding switch is not disconnected) to prevent misoperation;
• Brand Reliability: Siemens industrial-grade design with insulation and temperature resistance meeting medium- and high-voltage equipment standards;
• Intelligent Adaptation: Supports status data collection and is compatible with remote operation and maintenance requirements for smart grids.
• Distribution Switching: Enables power distribution and circuit switching for medium- and high-voltage lines;
• Fault Interruption: Rapidly interrupts short-circuit and overload currents to protect power systems;
• Status Feedback: Displays real-time operational statuses including device closing/opening and energized conditions.
| Parameter Category | Common Range |
|---|---|
| Rated Voltage | 10kV/20kV/35kV |
| Rated Current | 630A~2500A |
| Short-Circuit Breaking Current | 25kA~40kA (at rated voltage) |
| Protection Rating | IP3X (cabinet body)/IP4X (operation area) |
| Mechanical Life | ≥10,000 switching cycles (opening/closing) |
• Substations / Distribution Rooms: As core medium- and high-voltage distribution equipment, they handle regional power distribution, protection, and monitoring;
• Industrial Users: Provide power supply control and fault protection for high-voltage loads (such as transformers and motors) in large factories, mines, and similar facilities;
• Urban Grids: Used for ring network power supply and line interconnection in urban distribution grids, enhancing grid supply reliability and flexibility.
We offer comprehensive OEM and ODM services tailored to your specific requirements. Should you require customized products, our professional team will provide full support to meet your needs.
