The 10A/30A slip ring collectors may have only 30A line rings or they may have both 30A line rings and 10A auxiliary rings, up to a maximum of 40 rings.
All slip ring collectors are tested to operate at a maximum ambient temperature ranging from -25°C to +70°C. Slip ring collectors have a shock-resistant thermoplastic protection to prevent accidental contacts with live parts. They are fitted with phosphor bronze or graphite brushes.
All the materials and components used are weather resistant.