Allen-Bradley 700-N400A1 Bulletin 700 AC Relay

Allen-Bradley 700-N400A1 Bulletin 700 AC Relay is a four-pole industrial control relay designed for reliable, multi-circuit switching in control panels. It provides four normally open (NO) contacts that close when the coil is energized, enabling a single relay coil to govern up to four separate loads. Rated for up to 10 A at 120 VAC, this model accepts common AC control voltages and is offered in Type N coil configurations with voltages such as 110 VAC at 50 Hz or 120 VAC at 60 Hz, depending on variant. As part of the Bulletin 700 family, it is built for rugged operation in manufacturing environments where durability and predictable switching are essential. The 700‑N400A1 is typically employed in general purpose automation tasks, including sequencing, interlock logic, and motor control circuits where multiple dry contacts are advantageous from one relay coil. This configuration provides a compact, straightforward solution for expanding control logic without adding separate relays for each circuit. With four normally open contacts, it allows multiple loads to be controlled in parallel or in sequence from a single coil, simplifying circuit design.