This Harmony XVB base unit with bottom or side cable entry has a diameter of 70mm.This base unit is designed to be fitted with indicator bank to create complete tower light and allow clear display of the status of your machines.It is made of glass reinforced polyamide material and it allows the cable to entry from bottom or side.It complies with CCC, CSA C22-2 No.14, EN/IEC 60947-5-1, EAC, UL 508 standards with NEMA 4X protection.Simple and modular design to allow for easy installation with illuminated unit via tube fixing and make complete tower light.It complies with international standards and certifications (CCC, CSA C22-2 No.14, EN/IEC 60947-5-1, EAC, UL 508 standards and NEMA 4X).