Siemens IEC 60 947 VDE 0660 Auxiliary Contact Block

The auxiliary contact block, also known as additional contact block or signal contact block, is an electrical module for power contactors from Siemens. It has the dimensions 4.5 x 7 x 8 cm and weighs 0.318 kg. This device complies with standards IEC 60947, VDE 0660, NFC 63110, and BS 5424. Auxiliary contact blocks are used to extend the switching functions of main contactors with additional, potential-free contacts, which are employed for control, signaling, and interlocking tasks. Typical applications can be found in automation technology for status reporting of machines as well as in electrical switchgears for realizing complex control circuits.

Auxiliary contact block, dimensions: width 45 mm, depth 80 mm, height 70 mm. Complies with ICE 60 947, VDE 0660, NFC 63110, BS 5424