Overview
The A9C22740 is a Schneider Acti 9 iCT remote control switch, a 3-pole device rated for 40 A switching current on a 240 V AC network. It uses a 240 V AC maintained control signal and carries four normally-closed (NC) power contacts.
This remote control switch is designed for group control of lighting circuits, particularly LED lighting where the manufacturer specifies group switching to manage inrush and load balance. The desynchronized neutral pole ensures the neutral opens after the phases and closes before them, reducing arcing on the neutral path. The maintained control signal means the coil holds the switch state without a pulse — power must be continuously applied to keep the contacts closed. The 40 A switching current covers most sub-distribution lighting panels in small commercial and residential buildings. The 4 NC contacts (pole contact composition) mean the switch is normally closed — it opens on loss of control voltage, providing a fail-safe that cuts power when the control signal drops. Power consumption at 6.5 W and 2.1 W reflects the coil hold and internal electronics respectively.
Applications
The Acti 9 iCT series is used in small commercial and residential electrical distribution for remote switching of lighting, heating, and other non-motor loads. Typical installations include hotel room power control, office lighting zones, and retail display circuits where a central controller or building management system sends a maintained signal to open or close multiple circuits simultaneously.
Within the Schneider Acti 9 range, the iCT remote control switch sits between the iC60 miniature circuit breakers and the iSW isolating switches. It is specified by electrical contractors and panel builders who need a compact, DIN-rail-mounted way to switch lighting groups from a remote pushbutton or PLC output. The 3-pole, 40 A variant (A9C22740) is a common choice for three-phase lighting sub-distribution where each phase feeds a separate lighting group.