Olsberg CTSC 14/522 Instrucciones De Montaje página 30

Electrical Connection
Cable Feed
Fig.9
30
The storage heater is connected using a load-current
cable (off-peak rate) and a control cable (peak rate).
While the storage heater is suitable for direct connec-
tion, it can also be connected using a connector box.
According to regulations every branch circuit must be
individually protected, for instance by circuit breakers
for all phases. These circuit breakers must have con-
tact openings of at least 3mm.
Each storage heater must be connected to its own
separate load-current cable from the distributor panel.
Running cables from heater to heater is not allowed.
Make sure the earth cable is firmly connected.