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8013741/16LH/V1-7/2020-04| SICK
O P E R A T I N G I N S T R U C T I O N S | MCS300P Ex
Subject to change without notice
3
INSTALLATION
3.5.1.3
Connecting thermostatic-controlled subassemblies
▸
Route the lines through the cable gland and connect the lines (
3.5.1.4
Preparing the main power supply
Observe information on connecting the Ex control unit and, when necessary, the Ex power
relay (
see “Connecting Ex peripherals (for MCS300P Ex category 3G)”, page 29
).
▸
Connect MCS300P Ex only with power supply systems with a residual current and/or
insulation monitoring system.
▸
Provide separate external main power switches which can be disconnected on all
connectors and fuses in the proximity of the MCS300P Ex (max. power input of the
MCS300P Ex
→
Technical data).
Make sure the disconnector switch is easily accessible.
3
Check the main supply voltage specified in the System Documentation.
4
Route the electric lines through the cable gland and connect the lines.
Fig. 10: Connecting the main power supply
3.5.1.5
Closing the sender unit
▸
Close the sender unit and screw tight.
NOTICE:
Fuse values depend on the power voltage
If the power voltage available locally is not identical with the power voltage specified
in the System Documentation or there are any doubts concerning the power voltage
set:
▸
Check the fuse values in the MCS300P Ex (
).
Main power supply voltage
100 … 240 V / 50 … 60 Hz
Line: Max. AWG14
The fuses depend on the power
voltage.
Line
Terminal
L1
L1
N
N
PE
G
[1]
[1] G = enclosure ground
Shown without protective gas supply