Description
The ABB CAL19-11 Auxiliary Contact is a side-mounted control part that provides 1 N/O and 1 N/C contact for monitoring and optional switching operation. Designed for compatible contactors, it expands the control circuit connections without altering the primary power circuit. This is commonly applied in motor control panels, automation systems, and HVAC systems where additional status indication, interlocking, or control operation is required. As part of the electrical control assembly, it supports managing signal circuits, supports equipment sequencing, and contributes to system operation.
