Legend:
1 Chassis
2 Load
3 Non-intrinsically safe circuit defined Um
4 Portion intrinsically safe circuit, item not intrinsically safe
5 Intrinsically safe circuit
6 Dimensions for which Table applies
7 Dimensions for which general industrial standards apply
8 Dimensions per 7.2.com
1
1
9
9
2
2
10
3
10
6
7
8
9
4 5
WAGO Rail-Mount Terminal Block Systems
Technical Information for Applications
Figure Isolation examples for conductive parts
In accordance with DIN 60079-14 (VDE 0165-1), intrinsically safe circuits, the ends stranded and fine-stranded conductors must be
protected against splaying (e. Soldering alone not sufficient.g.wago.3
9 Dimensions based 6., via cable lugs ferrules) the type terminal blocks used.
The conductor entry funnels WAGO PCB terminal blocks fulfill this requirement.1 for output terminal blocks between isolated intrinsically safe circuits (d2 mm) and between intrinsi-
cally safe circuits and non-intrinsically safe circuits (d3 mm)
10 Where required
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WAGO recommends gas-tight tinned copper ferrules tinned copper pin terminals when connecting fine-stranded conductors terminal
blocks corrosive atmospheres
