The 6AV6881-0HE20-0AA0 is an 8-pole female connector (socket) for SIMATIC HMI devices, with 3.5mm pitch and straight (180°) orientation. It uses spring-clamp terminals — no tools required for wiring — and accepts 0.14–1.5mm² conductors. The black PA66 GF30 housing meets UL94-V0 flammability requirements. Manufactured by Weidmüller for Siemens, it is the original equipment connector for compatible SIMATIC HMI panels.

6AV6881-0HE20-0AA0 vs 6AV6881-0AE10-0CB0 — how do they differ?

The 0HE20 is 8-pole, 2-row, black, with spring-clamp terminals. The 0AE10 is 3-pole, 1-row, green, with screw terminals. They serve completely different pin-count requirements — the 8-pole variant handles more signals in a compact 10.5mm width, while the 3-pole variant is for simpler connections with traditional screw-down wiring. Do not substitute one for the other without verifying your device pinout.

What is the wiring procedure for spring-clamp terminals?

Strip the conductor to the correct length and insert it directly into the terminal opening — no screwdriver needed. The spring mechanism grips the wire automatically. To release, press the actuator button with a small flathead screwdriver and pull the wire out. Accepts 0.14–1.5mm² solid or stranded conductors. The tool-free mechanism significantly speeds up panel wiring compared to screw terminals.

Which HMI devices is this compatible with?

The 6AV6881 series connectors are used across SIMATIC HMI key panels including the KP8 PN and KP8F PN. This connector is the female (socket) side that mates with the device PCB header. Always verify your specific HMI device documentation for the correct connector part number — pin count and pitch must match exactly.