SF6 Gas-insulated RMUsanchialiu@gmail.com2026-09-14T01:24:05+00:00

100% OEM / ODM CUSTOMIZABLE IEC 62271-200 / GB 3906 IP67 (Gas Tank)/ IP4X

SF6 Gas-insulated RMU

Compact medium voltage Ring Main Unit (RMU) sealed in a stainless steel gas tank filled with SF6 gas for maximum insulation and arc quenching. Designed for urban distribution networks, secondary substations, and harsh environmental conditions, providing maintenance-free operation and exceptional operational reliability.

RATED VOLTAGE (UE) 12kV / 24kV / 40.5kV AC

RATED CURRENT (IN) 630A – 1250A

ENCLOSURE MATERIAL Cold-Rolled Steel / Stainless Steel

MOUNTING TYPE Floor-Standing Free-Standing

GET A CUSTOM QUOTE

// Custom Engineering Scope

Tailored Electrical Enclosures

Built precisely to your single-line diagrams, ambient protection ratings, and international electrical standards.

IEC 61439 IP65 / IP55 100% FAT TESTED

Schematic & Layout Design

Send your SLD or DWG files. Our team prepares detailed 2D layouts and 3D CAD step files for your approval within 24 hours.

Multi-Brand Components Selection

Fully customizable internal layout supporting Schneider, ABB, Siemens, Chint, or customer-specified breaker brands.

Rugged Metalwork & Coating

Cold-rolled steel, SS304, or SS316 enclosures with custom RAL powder coating, busbar configurations, and gland plates.

Rigorous Factory Testing

Every customized distribution box completes dielectric withstand, insulation resistance, and IP testing prior to dispatch.

// Workflow

Customization Process

Submit Inquiry

Share your electrical schematics, required dimensions, protection level, and quantity requirements.

24h CAD & Quote

Engineers evaluate technical feasibility, provide optimized drawing layouts and an itemized commercial offer.

Drawing Approval

Finalize 2D/3D CAD drawings for precision laser cutting, CNC busbar bending, and component assembly.

FAT & Delivery

Complete 100% factory acceptance testing, issue formal test reports, and dispatch via seaworthy export packing.

// Technical Support & Specs

Frequently Asked Questions

Key information regarding customization, standards compliance, testing, and lead times.

Can your power equipment be customized to specific IEC standards and project specs?

Yes, all our low/medium voltage switchgears, compact substations, and transformers are fully engineered to order. We comply with IEC 61439, IEC 62271, and ISO quality management frameworks, tailoring component brands, enclosure IP ratings, and single-line diagrams (SLD) precisely to your site requirements.

Do you perform full Factory Acceptance Testing (FAT) before dispatch?

Absolutely. Every switchgear assembly and transformer undergoes 100% FAT prior to packing, including power-frequency withstand voltage testing, insulation resistance checks, busbar torque verification, and operational sequence tests. Full FAT reports are provided with shipping documentation.

What is the typical manufacturing lead time for custom substations and switchgear?

Standard manufacturing lead time ranges from 3 to 5 weeks upon final approval of technical drawings (SLD). Accelerated production schedules are available for urgent utility or industrial project deadlines.

How do you package heavy power equipment for ocean transport?

All equipment is packed in ISPM-15 compliant export wooden crates with internal vacuum foil sealing and desiccant bags to prevent moisture corrosion during long-distance maritime shipping. Heavy units are reinforced with bottom steel channels for forklift and crane handling.

SF6 Gas-insulated RMU

Tailored Electrical Enclosures

Schematic & Layout Design

Multi-Brand Components Selection

Rugged Metalwork & Coating

Rigorous Factory Testing

Customization Process

Submit Inquiry

24h CAD & Quote

Drawing Approval

FAT & Delivery

Frequently Asked Questions

Contact Us

Quick Links

Capabilities

Custom Switchgear. Trusted Partnership.

SF6 Gas-insulated RMU

Tailored Electrical Enclosures

Schematic & Layout Design

Multi-Brand Components Selection

Rugged Metalwork & Coating

Rigorous Factory Testing

Customization Process

Submit Inquiry

24h CAD & Quote

Drawing Approval

FAT & Delivery

Frequently Asked Questions

Contact Us

Quick Links

Capabilities

Custom Switchgear. Trusted Partnership.

MV/LV Switchgear & Power Solutions