Siemens SIPART Series Operating Instructions Manual page 81

5. Tighten the screw
6. Connect the cables of each switch to the lug of the printed circuit board in pairs. Use the
5.1.4 Device with Ex i/Ex n/Ex t type of protection
With intrinsically device version (Ex i)
Risk of explosion in hazardous areas.
For intrinsically safe device versions only the certified circuits may be connected as
auxiliary power supply, control and signal circuits.
• Make sure that the power source of the used circuits is marked as intrinsically safe.
SIPART PS2 with and without HART
Operating Instructions, 10/2013, A5E00074631-11
①
on the transparent cover
③
provided cable ties
①
Screw
②
Cover
③
Cable tie
Figure 5-11 Connecting the cables
WARNING
for this purpose.
②
.
Connection
5.1 Electric
79