Product family · Ring main units & GIS

RMU & gas-insulated switchgear

Compare QCL gas-insulated equipment and alternative RMU technologies. Start with the voltage and feeder functions required by your project.

QCL gas-insulated product range

Compact ring-main and feeder arrangements for 12kV distribution.

Switchgear for 24kV-class networks with project-selected functional units.

Higher-voltage switchgear selected to the system and project specification.

Network Voltage	Recommended Series	Typical Use
10 / 11 / 12kV	QCL-12	Ring distribution, transformer feeders, compact substations and industrial distribution
20 / 22 / 24kV	QCL-24	Utility networks, renewable-energy projects and EPC substations
33 / 35 / 36 / 40.5kV	QCL-40.5	Primary distribution, industrial plants, solar/BESS and infrastructure projects

Confirm the system insulation requirements, fault duty, current, installation conditions and applicable standard before final selection.

Select cable-switch, fuse or circuit-breaker functions around the approved single-line diagram.

Coordinate protection relays, CT/VT, metering, indication and communication.

Confirm cable entry, termination, overall layout, operation space and environmental requirements.

A product name, your country and a short question are enough to start. If you have a drawing or specification, we can review it with you.