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© Chr. Renz
MR
8/18
4.5
Checking the residual current device
Figure 5
The DC monitor integrated in the POWER2CAR STEEL wallbox has a test button for checking the resi-
dual current device. When pressed, a 6 mA DC residual current is generated. The DC monitor then
generates an AC residual current which triggers the residual current circuit breaker in the house distri-
bution system.
This function must be checked when the unit is put into operation and later once a year.