Modular Contactors, Up to 63A Contact position indication Legend carrier provided Module widths comparable to MCB & fuse carriers Current shown is AC-1 Schneider Electric Modular Contactors Low noise a.c. compact modular contactors and accessories are ideal for heating lighting and building service type applications. The units are designed for mounting in control panels or cabinets on symmetrical DIN rail or they may be housed in modular enclosures.