Suitably rated Branch Circuit Protection must be provided in accordance with applicable Local Electrical Code.
Un protecteur de circuit approuvé doit être utilisé selon les normes locales d’installation électrique.
Fitted variable frequency drive
The appliance features one variable frequency drive (VFD) and an EMC mains input filter.
This equipment can result in a leakage current of 0.75 mA max. per VFD.
Use an appropriate GFCI as required for the relevant rated voltage.
Ground fault circuit interrupter properties
The ground fault circuit interrupter (GFCI) must have the following properties:
High-frequency current filtering
"Time-delayed trip" characteristic trip curve for GFCIs with a trip threshold >30mA: Prevents GFCIs
from tripping as a result of capacitances and capacitance-related disturbances when the appliance is
switched on.
“Si-type leakage current protection” characteristic trip curve for GFCIs with a trip threshold equal to or
greater than 30mA: Prevents nuisance tripping.
Circuit Breakers
Establishments with standard (Type ‘B’) circuit breakers are sensitive to ‘surges’ which occur on
switching on freezers, refrigerators and other catering equipment, including microwave combination
ovens. Because of this, a Type ‘D’ circuit breaker (designed specifically for this type of equipment) must
be fitted. An individual, suitably rated circuit breaker should be fitted for each appliance installed.
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