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Series 503SI fused terminal blocks are available in unearthed versions from 1 to 5 poles and earthed versions from 3 to 5 poles.
A common dovetail enables mixed assemblies to be constructed by clipping on additional 1 pole lengths to provide multiple versions of fused and unfused terminals.
All variations can be supplied with or without wire protectors.
Earth Screws & Washers (Optional)
Screws: 503SIES – M3 x 12, Posi
Washers: 503SITW – M3
503SI03
503SI03DS
503SI03EDS
503SI01
503SI01DS