The 6ES7194-2LH20-1AB0 is a 2-meter unshielded 24 V DC power cable for SIMATIC ET 200AL with angled M8 connectors at both ends—one plug, one socket. The gray PVC jacket identifies it as a power cable (4 Li9Y 0.50 mm2, unshielded). The angled exits keep the cable flat against the module face—useful when ET 200AL modules sit under a low overhang or in a tight corner where straight connectors would protrude into moving parts or the enclosure door.

Why angled connectors on a power cable?

The same clearance logic that applies to the green bus cable applies here. An angled M8 plug exits at 90 degrees and needs roughly 12 mm of headroom; a straight connector extends about 30 mm before the bend. If the modules are in an open DIN rail area with nothing above them, straight connectors (6ES7194-2LH20-1AA0) are easier to handle. If there is a machine guard, cover, or door directly above the ports, the angled variant keeps the cable profile low. Electrically, the angled and straight variants are identical—same 4 Li9Y conductors, same 24 V DC rating. The choice is mechanical.

Gray means power.

ET 200AL color-coding: gray = unshielded 24 V DC auxiliary power, green = shielded PROFINET bus. This cable carries only DC voltage—no data, no shielding. Never plug it into a green bus port. The connectors are physically identical; jacket color is the only visual check. Wrong cable in the wrong port can destroy the PROFINET ASIC.