N... contactor relays are used for switching auxiliary circuits and control circuits - Poles: 8-pole contactor relays (mechanically linked contact elements available) The width of 8-pole devices is identical to that of 4-pole devices only the depth is increased - Control circuit: AC operated with laminated magnet circuit - Accessories: a wide range of accessories is available. only the depth is increased - Control circuit: AC operated with laminated magnet circuit - Accessories: a wide range of accessories is available.