Connection   
6.2 Power supply 
  SCALANCE WxM766 
56  Operating Instructions, 03/2022, C79000-G8976-C617-03 
•  Permitted tensile load at least 100 N. 
•  Listing of the cables according to the national installation regulations. In areas where 
NEC or CEC applies: Type PTLC or ITC 
To connect the functional ground, use a copper cable of category AWG18 or a cable with 
a cross-section ≥ 0.75 mm². 
Position and pin assignment 
 
M12 Ethernet interface P1 LAN PoE, X-coded, 8-pin 
The power can also be supplied via this interface (Power over Ethernet). 
Pin assignment, see Ethernet (Page 57) 
M12 interface, direct infeed, L-coded, 4-pin 
The 4-pin M12 socket has the following pin assignment: 
 
Connecting/disconnecting the power supply 
 
 
WARNING 
Danger from electric shock 
Turn off the power supply before you insert or remove the plug of the power supply. 
1.  Connect the plug and socket. Make sure that they lock in place correctly. 
2.  Tighten the knurled screw (tightening torque 1 Nm).