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Quick Start Guide MSO/UPO2000 Series
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AC
DC
Grounding
Grounding
Grounding
OFF
ON
Power
Supply
CAT I
Secondary electrical circuit connected to wall sockets through transformers or
similar equipment, such as electronic instruments and electronic equipment;
electronic equipment with protective measures, and any high-voltage and low-
voltage circuits, such as the copier in the office
CAT II
CATII: Primary electrical circuit of the electrical equipment connected to the indoor
socket via the power cord, such as mobile tools, home appliances, etc. Household
appliances, portable tools (e.g. electric drill), household sockets, sockets more than
10 meters away from CAT III circuit or sockets more than 20 meters away from CAT IV
circuit
CAT III
Primary circuit of large equipment directly connected to the distribution board and
circuit between the distribution board and the socket (three-phase distributor circuit
includes a single commercial lighting circuit). Fixed equipment, such as multi-phase
motor and multi-phase fuse box; lighting equipment and lines inside large buildings;
machine tools and power distribution boards at industrial sites (workshops)
CAT IV
Three-phase public power unit and outdoor power supply line equipment. Equipment
designed to “initial connection”, such as power distribution system of power station,
power instrument, front-end overload protection, and any outdoor transmission line
Certificati
on
CE indicates a registered trademark of EU
Certificati
on
UKCA indicates a registered trademark of UK.
Certificati
on
ETL indicates a registered trademark of Intertek.
Waste
This product complies with the marking requirements of WEEE Directive
(2002/96/EC). This additional label indicates that this electrical / electronic product
must not be discarded in household waste.
EFUP