The dry contacts are accessed by removing the dead front of the panel then the face plate of the TVSS. The I-Line series Surge Protective Device (SPD) is provided with dry contacts. The connection for the dry contacts (Exhibit C), is located and labeled on the back of the diagnostic display panel and will accept 22-14 AWG stranded or solid wire. The dry contacts are three-position, Form “C” type with Normally Open, Normally Closed and Common connections. The unpowered state shall be closed between terminals NC and COM. This is also the alarm condition. The opposite state, closed between terminals NO and COM, indicates that power is on to the unit and that no alarm condition exists. The contacts are designed for a maximum voltage of 24 Vdc / 24 Vac and a maximum current of 2 A.

Publicado para:Schneider Electric Mexico