Allen-Bradley 700-HA33A1-1 Relay

Allen-Bradley 700-HA33A1-1 Relay is a general-purpose tube-base plug-in relay from Rockwell Automation’s 700-HA family. It provides three independent poles with double-throw contacts (3PDT) and a 10 A contact rating, designed to switch multiple circuits from a single device. The coil is rated for 120 V AC, enabling direct use with common control-power sources. The unit is built for tube-base sockets (commonly 11-pin configurations) that support quick installation and field replacement in control panels and automation gear. This combination of 3PDT contacts and 120 V AC operation makes it well suited for controlling solenoids, indicator circuits, or multiple contactor coils in 120 VAC control schemes, while preserving separate NO and NC paths for each pole. The 700-HA33A1-1 is a rugged, legacy-friendly relay option for industry-standard control logic, providing reliable switching for medium-load applications in vintage and modern Allen-Bradley setups.