700-N400A1 | Allen-Bradley Industrial Control Relay, 4 NO, 110V 50Hz /120V 60Hz

The Allen-Bradley 700-N400A1 is an industrial control relay primarily used to switch electrical circuits on or off in response to a control signal. It features 4 Normally Open (NO) contacts, making it suitable for managing multiple loads or control functions simultaneously. Its role is critical in automation, where it can control motors, lighting systems, or signal pathways. This relay ensures reliable performance in both simple and complex control systems. It is widely used in machinery and process automation.

This relay includes four Normally Open (NO) contacts, which remain open until the coil is energized. These contacts allow current to flow only when the relay is activated, making the unit ideal for momentary or control-based switching. The 4 NO configuration is suitable for simultaneously switching multiple circuits. Each contact is designed for long operational life with reliable conductivity. This enhances the relay’s usability in larger, distributed control systems.

The 700-N400A1 relay uses screw-type terminals for secure and stable connections. These terminals support standard solid or stranded wire, allowing quick and reliable installation in control panels. The screw terminal design ensures strong mechanical contact, reducing the risk of wire loosening due to vibration. This terminal style is widely accepted in industrial settings for its durability. It simplifies maintenance and replacement.

The contacts of the 700-N400A1 relay are rated for a maximum current of 10 Amps. This current capacity allows the relay to handle a wide variety of industrial control loads, including solenoids, small motors, and lighting systems. The rating ensures safe operation when switching resistive and slightly inductive loads. It’s important to operate within this current limit to prevent contact wear or overheating. The 10A rating aligns well with typical medium-duty industrial applications.

As of the latest product catalogs, the Allen-Bradley 700-N400A1 relay remains in active production and is available through authorized Rockwell Automation distributors. It continues to be supported due to its wide adoption and reliability in industrial automation. Availability may vary by region, but it is not listed as obsolete. Users are encouraged to consult Rockwell or local distributors for current lifecycle status. Long-term availability ensures continued use in both legacy and new systems.