3.2.2
Protective earthing
Before any electrical installation, the device must be connected to the
protective earthing terminal inside the housing.
3.2.3
Installation regulations
Local regulations or VDE 0100 (Regulations of German Electrotechnical
Engineers) must be observed.
When using 24 V supply voltage, an approved power supply with reinforced
insulation to mains is required.
3.2.4
Fuse
Use a fuse as stated in the connection diagrams.
For details, see
.
3.2.5
Residual Current Circuit Breaker (RCCB) protection
In case of a defect, the distribution voltage must automatically be cut-off by
an RCCB protection switch to protect against indirect contact with
dangerous voltages.
3.2.6
Power supply
Power supply switch
A voltage disconnection switch must be provided near the device.
Supply voltage
Compare the supply voltage applied with the specifications given on the
electronic module and nameplate before switching on the device.
3.2.7
Wiring
Field wiring cables
The diameter has to match the clamping range of the used cable gland.
The cross-section has to match the clamping range of the connection
terminals and the maximum current must be considered.
All field wiring must have insulation suitable for at least 250 Vac.
The temperature rating must be at least 194 °F (90 °C).
Use a shielded cable when there are electrical interferences present that are
higher than stated in the EMC standards. Otherwise, an unshielded
instrumentation cable can be used.
Quick Start Guide
October 2019
14
Quick Start Guide
