1 Interfaces
1.1 Mains power supply
DANGER
Danger to life from electric shock
Inadequate or incorrect grounding of the unit leads to contact-sensitive voltage on the housing. When
making contact, increased leakage currents will cause a life-threatening electric shock.
► Before the installation, check that the connection leads are voltage-free.
► Conduct the electrical connection in accordance with locally applicable regulations.
► Make sure that the local mains voltage and frequency match rating plate specifications.
► Make sure that the mains cable and extension cable meet the requirements for double isolation
between input voltage and output voltage, in accordance with IEC 61010 and IEC 60950.
► Use only a 3-pin mains cable and extension cable with properly connected protective earthing
(earthed conductor).
► Plug the mains plug into a socket with earthing contact only.
► Always connect the mains cable prior to all other cables, to ensure continuous protective earth-
ing.
The mains connection with mains switch is located on the rear side of the device. A mains cable is in-
cluded in the shipment. If the mains plug is not compatible with your system, you can use a separate,
suitable mains cable with earthed conductor (3 × 1.5 mm
2
). If you install the device in a control cabinet,
we recommend that you supply the mains voltage via a switched mains distributor.
The socket re-
quires a 10 A
max
fuse.
Fig. 1:
Mains connection with IEC 320 C13 socket
1.2 Ground terminal
DANGER
Danger to life from electric shock
The internal earthed conductor is fastened to the housing by a screw. A device without an earthed
conductor attached can be life-threatening in the event of a malfunction.
► Do not rotate or loosen the screw on the internal earthed conductor.
The connection to the protective earthing is located on the rear side of the device. Using the screw, you
can connect the device where required via an earthed conductor to the protective earthing of the pump-
ing station, for example.
Interfaces
Summary of Contents for PT G28 500
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