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Help CenterSchneider Original SM6 Gas-Insulated Cabinet SF6 630A 12KV/24KV IEC Standard Compliant for Substation
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Welcome to Jinhua Dika Electrical Equipment Co., Ltd. – your reliable partner in medium voltage switchgear solutions. We are proud to present the Schneider Original SM6 Gas-Insulated Cabinet, designed for demanding substation applications. This SF6-insulated ring main unit (RMU) combines Schneider’s proven engineering with our manufacturing expertise, delivering a robust, maintenance-friendly solution for 12kV and 24kV networks. With a rated current of 630A and full compliance with IEC standards, it ensures safe and continuous power distribution in diverse environments.
The SM6 cabinet utilizes SF6 gas as an insulating and arc-quenching medium, allowing a compact footprint while maintaining superior dielectric strength. Its sealed pressure system guarantees long-term reliability and minimal environmental impact. Whether you are upgrading an existing substation or building a new one, this cabinet offers flexible configuration options, including load break switches, circuit breakers, and fuse combinations.
Below are the key technical specifications and features that make the SM6 Gas-Insulated Cabinet an ideal choice for modern power grids.
| Parameter | Specification |
| Rated Voltage | 12 kV / 24 kV |
| Rated Current | 630 A (main busbar) |
| Rated Short-Time Withstand Current | 20 kA / 3s (16 kA for 24kV version) |
| Rated Peak Withstand Current | 50 kA / 40 kA |
| Insulation Medium | SF6 gas (absolute pressure 1.4 bar at 20°C) |
| Degree of Protection | IP67 (gas compartment), IP3X (mechanical interlock) |
| Internal Arc Classification | IAC AFLR (available upon request) |
| Standards Compliance | IEC 62271-200, IEC 60265, IEC 60129 |
Product Features & Benefits
- Compact & Modular Design: The SM6 cabinet reduces floor space by up to 60% compared to conventional air-insulated switchgear, enabling easy installation in confined substation rooms.
- Sealed Pressure System: SF6 gas encapsulation ensures zero moisture ingress and stable dielectric properties for over 30 years, dramatically reducing maintenance costs.
- Flexible Configuration: Choose from various functional units – load break switches (LBS), vacuum circuit breakers (VCB), fuse-switch combinations, and earthing switches – all within the same enclosure.
- Enhanced Operator Safety: Interlocked mechanisms prevent incorrect operations; pressure relief flaps direct arc gases away from personnel; optional remote monitoring via digital sensors.
- Wide Application Range: Suitable for secondary distribution substations, wind farms, commercial complexes, industrial plants, and utility networks up to 24kV.
- Eco-Friendly Alternative: SF6 gas has a high global warming potential, but the sealed design minimizes leakage (
- Proven Reliability: Each unit undergoes routine type tests per IEC standards, including voltage withstand, temperature rise, and mechanical endurance (10,000 operations) at our test facility in Jinhua, Zhejiang.
Why Choose Jinhua Dika Electrical Equipment Co., Ltd.?
As a manufacturer with over a decade of experience in medium voltage switchgear, we have exported to more than 14 global markets including North America, Europe, Southeast Asia, and Africa. Our annual export value ranges from US$1 million to US$1.5 million, serving customers in substation construction, O&M, and EPC projects. We hold multiple management system certifications such as ISO9001, ISO14000, OHSAS18001, among others, ensuring consistent quality and on-time delivery.
Our skilled team of 11–50 employees is dedicated to customer satisfaction, offering customizable options like special paint colors, cable termination kits, and local language labeling. We ship from Shanghai, Tianjin, Guangzhou, or Ningbo ports, with lead times as short as 30 days for standard configurations.
Take the next step in securing your power distribution network. Contact us today for a detailed quotation, technical datasheet, or to arrange a factory inspection. The Schneider Original SM6 Gas-Insulated Cabinet is ready to deliver uncompromising performance for your substation.
Frequently Asked Questions (FAQ)
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Q: What is the expected lifespan of the SM6 cabinet?
A: The expected technical lifespan is at least 30 years under normal operating conditions, thanks to the sealed SF6 system and corrosion‑resistant enclosure. Regular visual inspections are recommended every 10 years. -
Q: Can the SM6 be integrated with remote monitoring systems?
A: Yes, we offer optional smart modules (e.g., partial discharge sensors, temperature/humidity monitors, and communication gateway supporting IEC 61850) that can be integrated during manufacturing or retrofitted later. -
Q: What are the shipping dimensions and weight for a typical unit?
A: A standard three‑function SM6 cabinet measures approximately 850 mm (W) x 1100 mm (D) x 1800 mm (H) and weighs around 350 kg. Exact figures depend on configuration; detailed packing list provided upon order. -
Q: Is the SF6 gas handling required during installation?
A: No. The gas compartment is factory‑filled and sealed. The unit is delivered with pressure already at the rated level (1.4 bar). No on‑site gas filling or handling is needed, simplifying installation. -
Q: Does the product comply with IEC 62271‑200 for internal arc fault?
A: Yes, the SM6 cabinet has been type‑tested for internal arc classification IAC AFLR up to 20 kA/1s for 12kV version. For higher arc ratings or 24kV, please consult our engineering team for options. -
Q: What kind of warranty do you provide?
A: We offer a standard 24‑month warranty from the date of shipment against manufacturing defects. Extended warranty plans (up to 5 years) are available upon request. -
Q: Can you provide samples for testing?
A: Yes, sample units can be supplied after order confirmation. The sample cost is negotiable and will be deducted from future bulk orders. Lead time for a sample is approximately 45 days. -
Q: Are spare parts easily available?
A: We maintain a dedicated inventory of common spare parts such as fuse bases, spring charging motors, and auxiliary contacts. Most parts can be shipped within 7–10 working days.
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