7
3
ELECTRICAL CONNECTIONS
Warning.
•
Before making any connections, ensure that the power supply, any high voltage-operated control circuits and high
common mode voltage are switched off.
•
Although certain instruments are fitted with internal fuse protection, a suitably rated external protection device, e.g. fuse
or miniature circuit breaker (m.c.b.), must also be fitted by the installer.
3.1
Access to Terminals
3.1.1
Wall-mounted Instruments – Fig. 3.1
3.1.2
Panel-mounted Instruments – Fig. 3.2
Fig. 3.2 Access to Terminal – Panel-mounted
Instrument (Rear View)
Fig. 3.1 Access to Terminal – Wall-mounted Instrument
3
ELECTRICAL CONNECTIONS…
Earth Studs
slide
down
1
Pull out
slightly. . .
. . . and
slide off
2
2
Remove
protection
cover
Slacken
captive
screws
4
3
Remove nuts and
protection cover
1
Remove
mains cover
2
Mains Cover
Earth Stud
