Connection
6.2 Power supply
SCALANCE W774-1 / W734-1
Operating Instructions, 03/2022, C79000-G8976-C325-15
51
The 4-pin connection socket has the following pin assignment:
SCALANCE W774 M12 EEC
With this device version, there are two options for the power supply:
• Direct infeed via the four-pin M12 connection socket ①
– Round cable cross-section with 6 to 8 mm diameter.
– Two-wire cable with 0.5 to 1.5 mm2 cross-section per wire.
– Permitted tensile load at least 100 N. - UL
– Listing of the cables according to the national installation regulations. In areas
where NEC or CEC applies: Type PTLC or ITC
• Power over Ethernet via the M12 Ethernet interface P2 ②. The other Ethernet
interface P1 is not capable of PoE.
The 4-pin M12 socket has the following pin assignment: