Recommended residual-current device
The appliance is fitted with one frequency converter (FC) or with two frequency converters (appliances
of size 20.10 and 20.20) with built-in EMC filter and an EMC mains input filter. These devices may
result in a leakage current of more than 3.5mA per FC drive.
Use a suitable RCD for the rated voltage:
Frequency converter (single phase) Frequency converter (three phase)
Rated voltage
3N~ 400V 50/60Hz 3~ 400V 50/60Hz
3~ 230V 50/60Hz 3~ 440V 60Hz
3~ 200V 50/60Hz 3~ 480V 60Hz
3~ 200-240V 50/60Hz 3~ 440-480V 60Hz
3~ 208/240V 60Hz -
1N~ 230V 50/60Hz -
1N~ 100V 50/60Hz -
1N~ 110-120V 60Hz -
Recommended residual-current device
Type A Type B/F
Optional residual-current device
Type B/F -
Properties of the residual-current device
The residual-current device (RCD) must have the following properties:
Filter for filtering out RF currents
“Time delayed" trip characteristic for RCD devices with trip threshold >30mA:
prevents RCD being tripped by charging currents of capacitors and parasitic capacitances when
appliance is switched on.
“Leakage current protection, type SI” trip characteristic for RCD devices with trip threshold £30mA:
insensitive to nuisance tripping.
Mains supply connection
The power cord must be an oil-resistant, sheathed and flexible cable in accordance with IEC 60245
(e.g. H05RN-F, H07RN-F). A maximum cable length of 5 m is recommended.
The appliance does not need to be connected in a specific phase sequence or direction of rotation.
6 Installation
Installation manual 73
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