Schneider Electric LADN31 Auxiliary Contact Block

The auxiliary contact block, also known as auxiliary switch, switching module, or signaling contact, with type number LADN31 from Schneider Electric is an electrical add-on module for contactors. It has the dimensions 5 x 5 x 5 cm and weighs 0.07 kg. Auxiliary contact blocks serve to extend the switching functions of power contactors by providing additional normally open and normally closed contacts for control and signaling purposes. Typical applications can be found in automation technology for signaling switching states and in complex control systems for linking logic functions.