The 6ES7194-2LH50-1AA0 is a 5-meter 24VDC power extension cable with straight M8 connectors at both ends: a plug (male) at one end and a socket (female) at the other. It extends the ET 200AL power chain by inserting the plug into a module output or upstream cable socket, while the socket receives the next cable plug or module input. The 4 Li9Y 0.50mm² unshielded construction and gray PVC jacket are standard across the ET 200AL power cable family.

When should I choose the straight power extension over the angled variant?

Straight connectors are the default choice for most installations. They are easier to grip, faster to mate, and cost slightly less. They need about 30mm of clearance above the M8 port—ample in a standard 200mm-deep control cabinet. Switch to the angled variant (6ES7194-2LH50-1AB0) only when vertical clearance is tight: a shallow machine-mounted enclosure, wire duct directly above the DIN rail, or a lid that sits close to the module face.

How does the 5-meter power extension compare to longer variants?

The 5-meter (2LH50) is the compact power extension in the ET 200AL M8 family—designed for modules mounted inside the same cabinet or in directly adjacent enclosures. If your power chain spans multiple cabinets or crosses a machine frame, the 10-meter (2LN10-1AA0) and 15-meter (2LN15-1AA0) variants provide the extra reach. Choosing the correct length avoids coiling slack inside wire duct and keeps the panel layout clean.

Why does the gray jacket matter?

In the ET 200AL M8 ecosystem, jacket color is a safety-critical signal. Gray identifies an unshielded 24VDC power cable; green identifies a shielded PROFINET bus cable. The M8 connector is physically identical across both—4 pins, same pitch, same keying. Plugging a gray power cable into a green bus port sends 24V into the PROFINET ASIC and destroys the interface. The gray jacket is your visual lockout: if the cable in your hand is not gray, do not plug it into a power port. This rule is non-negotiable in every ET 200AL installation.