SA/S 2.10.2.1 KNX Switch Actuator Manual

This document describes the ABB SA/S 2.10.2.1 two-fold switch actuator for KNX systems, featuring potential-free floating contacts rated at 10 AX for switching resistive, inductive, capacitive, and fluorescent lighting loads. It includes manual operation, status display, and programmable functions such as time delays, stair light logic, scene recall, forced control, and electrothermal valve drive control.