Allen-Bradley 599-SS09HJ Selector Switch, Maintained

Allen-Bradley 599-SS09HJ is a maintained Hand-Off-Auto selector switch kit designed as a field-installed accessory for Allen-Bradley 500-series pilot devices. It covers NEMA size 0 through 9 and is compatible with enclosures rated Type 1, 3R, 4, and 12, making it suitable for panel-mounted control stations in a variety of industrial environments. The kit is built to fit the 500Line family and lists compatibility with common 500-series devices such as the 1232X, 1232V, 1233X, 1242, 1243, 1272, 1273, 1282, and 1283 pilot components. The HOA configuration provides discrete manual positions for control, with a maintained action that holds the operator in place until a deliberate action is taken, simplifying process control in machines and conveyors. As a field-installed accessory, it’s intended to retrofit existing control panels without changing the base device format, enabling consistent operator interfaces across legacy Allen-Bradley equipment. This model is part of the 599 family of selector switches, which historically supported multiple enclosure combinations, ensuring compatibility with a broad range of enclosure types and legacy equipment.