Connection
22
NGRM7xx_D00292_07_M_XXEN/02.2022
5. Connection
5.1 Connection requirements
Only qualified personnel are permitted to carry out the work necessary to
install, commission and run a device or system.
Risk of electrocution due to electric shock!
Touching live parts of the system carries the risk of:
An electric shock
Damage to the electrical installation
Destruction of the device
Before installing and connecting the device, make sure that the
installation has been de-energized. Observe the rules for working on
electrical installations.
Risk of electrocution due to electric shock!
A nominal voltage of up to 690 V may be present at the terminals
L1…L3. Direct contact with these will likely result in electrocution.
Provide line protection!
According to DIN VDE 0100-430, a line protection shall be provided for the
supply voltage.
Risk of property damage due to unprofessional installation!
The connecting lines L1, L2, L3 to the system to be monitored must be
carried out as spur lines. Inadmissible load current can result in damage to
property and personal injury.
Do not apply any load current to the terminals.
Check proper connection.
Prior to commissioning of the installation, check that the device has been
properly connected and check that the device functions.
For UL applications:
Use 60/70 °C copper lines only.
For UL and CSA applications, the supply voltage must be protected via
5A fuses.
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