Jet NCB Instruction Manual page 30

C) Electrical wiring.
The electrical trunking must be watertight,
and connections and their fittings must have
a sufficient degree of protection against
vertical fall of water drops. Connections,
trunks and branch connections must always
be housed in leaktight boxes.
Wiring diagram.
Single-phase control cabinet.
! The wiring must be in accordance with EEC
standard or of type H07 RN-F according to
VDE 0250.
Three-phase control cabinet.
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