Grounding points
Safety grounding points and protective earth conductor
Touch current in the protective earth conductor exceeds 3,5 mA AC and 10 mA DC.
The cross sectional area of the protective earth conductor must be at least equal to that of the
incoming supply conductor.
One of the safety groundings must be connected to an appropriate grounding point. Grounding points
must comply with national and local industrial safety regulations and/or electrical codes.
Cabling and wiring
To make sure that the electric device functions correctly and to minimize the radiated emissions, all
connected cables and wires must be EMC-shielded. Shieldings must be connected to the ground at both
ends of the cable or wire. All power connections must be secured with cable lugs and cable glands. EMC-
shielded cable glands are used in all Danfoss products for the power connections. Make sure that the low
voltage cable (control signal cable) shield is also grounded from the both ends.
Cable gland assembly and power line connection
Risk of electric shock when the connection box lid is not installed.
User Guide
EC-C1700B-420
Installation
©
Danfoss | June 2023
BC454142332191en-000101 | 45
