Electrical voltage 230V
N – Neutral wire
PE – Grounding wire
L – Phase
WK – Main contact relay
AK – Normally open contact relay
RK – Normally closed contact relay
L1: Phase
PE: Grounding
N: Zero wire
Mains circuit breaker max. 10 A
Three-wire flexi cable 1,5 mm
Caution! The covering of the boiler
must be earthed by the grounding
of the supply cord!
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