Allen-Bradley 700-C1X NSMDC01 Contactor

The Allen-Bradley 700-C1X NSMDC01 is a contact cartridge accessory designed for the 700-N industrial relay family. It provides a 1-form NO/NC contact pair (1 normally open and 1 normally closed) with a 300 VAC contact rating and 10 A continuous current, configured for rear-deck mounting on the 700-N relay assembly. The NSMDC01 ordering code identifies this cartridge variant in Allen-Bradley catalogs. This cartridge is used to add or swap switching contacts in control circuits where a compact, modular contact arrangement is required, such as motor-control or general control circuits, while the relay coil is supplied by the accompanying 700-N unit. This combination supports straightforward replacement in legacy automation setups and helps consolidate otherwise separate contact blocks into a single mating assembly.