FeaturesContact blocks feature enclosed silver contacts with pointed reliability nibsTo ensure reliable switching, these nibs bite through oxide, which can form on silver contacts, eliminating the need for expensive logic level blocks for most applicationsStack up to 6-blocks (6-circuits) unless otherwise notedFor use with Eaton 10250T 30 mm pushbuttons and indicating lightsContact block is a logic level contact block with black plungers, inert palladium knife blade contacts, black opaque housing and pressure plate terminals