Series of insulators designed to be used as a busbar support element in three-phase systems & three-phase plus neutral systems.
The insulator consists of two crossbars on which socket slots are obtained whose width , which can be completed with a simple and patented system of rider spacers , allows the different bar sections to be adapted by always keeping the axle base constant between the phases. Everything is fitted with threaded shafts, washers and zinc coated nuts for fastening to the frame and the clamping of the two crossbars. Made of polyester resin with the addition of a high percentage of glass fibres, they guarantee a high electrodynamic resistance over time in case of faulty currents and an excellent performance in contaminated atmospheres.
- Arc resistance:> 120S - ASTMD - 495
- Material:Self-extinguishing class V 0 (3,2mm) according to UL - 94
- Operating Temperature:-40 up to +130 Celsius
- Operating voltage:750 / 900V Ac / Dc
- Max nominal pulse voltage:8 KV
- Dielectric strength:12KV/mm - UNI4291
- Max nominal voltage at 50hz for 1min:3 KV
- Hit tolerance:25KJ / m2 - UNI6062
- Number of bus-bars:3p+Ν 2X10(40Χ3/120Χ10)
- Distance between bus-bars:80 mm
- Dimension (mm):363 x 56
- Package:2
- Type:SA 503000 (SPI43)