Cast Resin Mini Substations

Robust Underground Solution

Red Metal Mining designs and supplies compact underground cast resin mini substations, which house the SGB cast resin transformer. Our custom designed housing, together with SGB transformers, provide maximum safety and benefit.
We have specifically designed the mini substation to fit underground in a man winder cage, and to be suitable for above surface usage.

Low operating & maintenance cost

Fire class F1 (self-extinguishing)
Cannot maintain combustion without external energy.

Protection class IP54

Low environmental impact
No oil – remarkably low fire hazard.

AN (convection-cooled)

Compact designed

Need a customized solution?


Head Office | Johannesburg
Wild Fig Business Park
Block A Unit 12 (Entrance 3)
1494 Cranberry Street
South Africa


©2018 Red Metal Mining (Pty) Ltd