Allen-Bradley 808-J17 Speed Switch Style J N.O. Low Speed

Allen-Bradley 808-J17 Speed Switch, Style J, Low Speed, N.O. (Normally Open) contacts, Base Mount, is an electro-mechanical speed sensing switch in the 808 family designed for industrial control applications. The unit uses a Type 7 & 9 enclosure to withstand harsh industrial environments and is specified as a Low Speed version with a 15–80 RPM contact operation range and a maximum shaft speed of 1200 RPM. The normally open output provides a simple signal path to control circuits when the monitored shaft speed falls within the set range, enabling straightforward integration with start/stop logic and automation sequences. Built for base-mount installation, the 808-J17 offers a compact footprint that fits alongside other speed sensing devices on machinery or control panels. Manufactured by Allen-Bradley (Rockwell Automation), this model is part of the 808 Speed Switch lineup and is identified by Style J, Low Speed, N.O., reinforcing its role as a reliable, lower-speed sensor for industrial monitoring tasks.