Technical specifications
| Parameter | Value |
|---|---|
| Product Type | SF6 Solid-Insulated Intelligent Ring Main Unit (RMU) |
| Rated Voltage | 12 kV / 24 kV / 33 kV |
| Rated Current | 630 A / 1600 A / 2500 A |
| Frequency | 50 / 60 Hz |
| Protection Level | IP30 / IP32 / IP40 / IP65 / IP66 |
| Material | Aluminium-Zinc Coated Steel Plate |
| Application | Electric Power Transmission |
| Certification | ISO9001, Test Report |
Specifications are based on the standard configuration. Final ratings, dimensions, materials and packaging are confirmed on the approved drawing and order confirmation.
Features and construction
- Compact metal-enclosed ring-network cabinets
- Top instrument/relay compartment with digital meters and indicator lights
- Operating mechanism panel with mimic bus diagram and rotary interfaces
- Lower cable compartment with warning labels and ventilated mesh panels
- SF6 solid insulation for safe, maintenance-friendly operation
Typical applications
Ideal for indoor ring-network distribution rooms, switchgear stations, and medium-voltage power transmission and distribution systems from 12kV to 33kV.
Customisation options
Protection level (IP30–IP66), rated voltage/current arrangement, and circuit scheme can be tailored to project requirements.
Ordering information
Please confirm rated voltage, rated current, protection level, and circuit configuration when ordering.
Specifications are based on the supplied product data. Final dimensions, materials, colors, and packaging are subject to the confirmed sample and order confirmation.
Standards and quality
Manufactured under an ISO 9001, ISO 14001 and ISO 45001 certified management system. Designs follow the IEC 60076 / IEC 62271 series as applicable, with ANSI/IEEE, GB and GOST variants available. Every unit passes routine testing before dispatch; type tests and customer or third-party witnessed factory acceptance tests can be arranged.
Frequently asked questions
What voltage ratio is available?
The standard unit is 12 kV / 24 kV / 33 kV input. Voltage ratio, tapping range and vector group can be adjusted to your network; 50 Hz and 60 Hz designs are available.
Which standards and certifications apply?
The product is designed to ISO9001, Test Report. MARS operates an ISO 9001 / 14001 / 45001 certified factory and holds CE (ECM), UDEM, EAC and CQC approvals; every unit is routine-tested before dispatch and type or witnessed tests can be arranged.
Can this product be customised?
Protection level (IP30–IP66), rated voltage/current arrangement, and circuit scheme can be tailored to project requirements.
What is the lead time and how is it shipped?
Typical lead time is 25–45 days after drawing approval for distribution equipment and 60–90 days for power transformers and containerised systems. Shipment is by sea from Shanghai on EXW, FOB, CIF or DAP terms with a full document pack.
Enquire about this product
Tell us the rating, voltage ratio, frequency, quantity and destination. A MARS engineer replies with a technical proposal and quotation within one working day.
