TER Rotary Limit Switch
TER Rotary Limit Switches: Precision Motion Control for US Overhead Crane and Hoist Applications
TER is a globally recognized manufacturer of rotary limit switches engineered for precise motion control on overhead cranes, hoists, and industrial machinery. Crane-Controls.com stocks the complete TER rotary limit switch range for US crane builders, electrical contractors, and maintenance teams requiring accurate, reliable shaft rotation and position sensing across the full range of US manufacturing, automotive, steel, food processing, and heavy industrial crane applications.
Crane-Controls.com carries the complete TER rotary limit switch range including the Base Series for compact space-constrained installations requiring up to 4 switching points, the Fox Series for applications requiring enhanced environmental protection and up to 5 circuits with optional potentiometer and encoder capability, the GF4C Series for mid-range applications requiring dual outputs at different revolution ratios in a compact housing, the Oscar Series for applications requiring dual output configurations and up to 8 circuits with the widest operating temperature range in the TER lineup at -53°C to +80°C, and the Top Series for the most complex switching requirements accommodating up to 18 circuits — the most fully specified rotary limit switch configuration in the TER range.
TER rotary limit switches are available with protection degrees from IP42 through IP69K across the range, with transmission ratios from 1:1 to 1:8100 and up to 15 contact elements depending on series. TER rotary limit switches measure shaft rotation angle and revolution count — delivering the precise, repeatable position sensing that crane and hoist control systems require for safe travel limit enforcement, accurate load positioning, and reliable end-of-travel protection. Where linear limit switches detect a fixed physical position, TER rotary limit switches mount directly to the crane drive shaft or gearbox output and continuously monitor rotational movement — providing programmable multi-point position switching across the full travel range of the crane bridge, trolley, or hoist without physical contact with the crane structure or runway. CE and cURus certifications are available across the TER range, supporting US and Canadian crane installation compliance requirements.
Crane-Controls.com's technical team provides pre-sale application support for TER series selection, shaft configuration, switching point programming, and cross-referencing of existing TER installations for replacement and upgrade projects. OSHA and ASME B30 compliant installations supported across the full TER rotary limit switch range.