The Allen-Bradley 855E-BTM is a 50 mm Control Tower Stack Light mounting base with a 25 mm diameter tube mount, delivered in a black housing with no cap for quick integration on standard tubes. It stands 28 mm tall and supports a maximum wire size of 0.5 mm², with a terminal torque recommendation of 0.87 N·m (7 in-lb); it also carries UL Type 4/4X/13 and IP66 ingress protection, plus operating and storage temperatures of -25 °C and -40 °C. Manufactured in Austria, this 855E base uses nitrile rubber seals, and is listed with a 21-day lead time and a 1-year standard warranty.
