| Brand | ROCKWILL |
| Series | RMR,RGIS,REC |
ROCKWILL builds SF6-free medium-voltage switchgear insulated by dry air, combining vacuum circuit-breaker technology with zero-GWP air insulation for distribution and industrial substations.
We supply metal-enclosed, air-insulated MV switchgear for primary and secondary distribution — designed for operators that need SF6-free assets today, not at the next regulatory deadline.
Dry air provides phase-to-earth and phase-to-phase insulation with zero global-warming potential, protecting you from F-gas bans and future carbon reporting.
Rated short-circuit interruption is handled by sealed vacuum interrupters — reliable, silent and maintenance-light over decades of service.
Breaker, busbar and cable compartments are segregated in earthed metal enclosures with accessible front face — familiar to contractors, easy to install and extend.
From 630A secondary distribution units to 1250A industrial incomers, 12kV and 24kV class, with cable/bus-tie/transformer feeder schemes to order.
Internal-arc rated compartments, mechanical interlocks, earthing switch and visible break for operator safety in daily switching.
Private-label panels, custom single-line diagrams, type-test reports and factory inspection for distributors and EPC projects worldwide.
Representative values for our standard air-insulated range. The certified datasheet for your scheme is prepared on request — contact us.
| Parameter | Typical value |
|---|---|
| Rated voltage | 12kV / 24kV (36kV on request) |
| Rated frequency | 50 / 60 Hz |
| Insulation medium | Dry air (air-insulated, SF6-free, zero GWP) |
| Breaking device | Vacuum circuit breaker |
| Rated normal current | 630A / 1250A busbar (up to 2000A on request) |
| Rated short-time withstand | 20kA / 3s (25kA on request) |
| Standard | IEC 62271-1, IEC 62271-200 |
| Degree of protection | IP4X front / IP3X (up to IP55 on request) |
| Type | Indoor, metal-enclosed, air-insulated switchgear |
SF6 is an extremely potent greenhouse gas. Dry air switchgear provides the same MV insulation function with zero GWP, helping utilities meet F-gas regulations and ESG targets without compromising reliability.
Dry-air units are marginally larger than gas-insulated (GIS) panels, but they match the familiar footprint of conventional air-insulated switchgear and are easier to install, maintain and extend.
Yes. Send your one-line diagram, load list and fault level; we engineer breaker, metering, bus-tie and feeder panels to your scheme and label them under your brand.
Panels are type-tested to IEC 62271-1 and IEC 62271-200, with factory acceptance and documentation supporting utility and industrial tenders.
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