![frako 38-00400 Скачать руководство пользователя страница 14](http://html1.mh-extra.com/html/frako/38-00400/38-00400_operating-manual_2326325014.webp)
14
DANGER!
The rear of the panel-mounting PQC inside the control cabinet or enclosure only
has IP20 ingress protection. Adequate protection against inadvertently touching
live components must be provided, and the ingress of dust and water must be
prevented by ensuring that the instrument is installed in a suitable enclosure
(e.g. control cabinet or distribution panel).
DANGER!
The PQC must not be installed in a hazardous zone, as its switching operations
generate sparks that could ignite flammable gases.
Only install the instrument in areas where there is no danger of a gas or dust
explosion.
The PQC is designed for mounting in a 138 mm × 138 mm cutout to IEC 61554 in the front of a
control cabinet.
It is held in place by four retaining lugs in the corners of the instrument.
Fitting:
Preparation: the four retaining lugs at the corners of the instrument are swivelled to lie flat
·
behind its front panel by turning the retaining screws (accessible from the front) anticlockwise.
Insert the sheet-metal rear of the PQC through the cutout provided in the control cabinet until
·
fully home (having first fitted the IP54 gasket in the groove behind the PQC front panel when
appropriate).
Press the PQC front panel gently against the control cabinet exterior and tighten the four
·
retaining screws at the corners by turning them clockwise, applying a torque of no more than
0.4 Nm. This causes the retaining lugs to swivel outwards and be drawn toward the inner side
of the cabinet wall until they are held tightly up against it.
DANGER!
To avoid accidents, the following must be observed:
- The PQC must be installed in accordance with its intended use before power
is switched on.
- All the connectors supplied with the instrument must be plugged in.
If the above precautions are taken, the danger to life and limb can be signifi-
cantly reduced.
DANGER!
To prevent the PQC overheating, the following must be observed:
- The PQC must be installed in an adequately ventilated space, and its rear and
sidewalls must not be covered.
- No sources of heat must be located in the vicinity.
- The PQC must not be exposed to direct sunlight.
If the above safety precautions are taken, the risk of damaging equipment and
assets or endangering life and limb can be significantly reduced.