Allen-Bradley 700-NA40

Allen-Bradley 700-NA40 Front Deck/Contact Cartridge is a four-pole front-deck assembly for Allen-Bradley 700-series relays, designed to replace the relay's contact deck without changing the base unit. The part is listed as 700-NA40, with a Series B variant also available as 700-NA40/B, and it functions as a replaceable contact cartridge for reliable field maintenance. This front-deck assembly defines the four-pole contact configuration used in midrange control relays and is sold as an accessory to extend the life of 700-series relays in industrial control applications. Suitable for use in control circuits where a modular contact interface is required in automation panels and equipment racks.