Mechanical properties Temperature range during operation –55 °C to +145 °C during installation –40 °C to +90 °C Bending radius during operation 5 x D during installation 4 x D Burning characteristics IEC 60754-1, IEC 60754-2, Def-St. 02-713, IEC 61034, IEC 60332-1-2, IEC 60332-3-2 ■ grey dark blue purple orange yellow green black light blue Marking STUDERCABLES.COM SWITZERLAND 040315 BETATHERM 145 HALOGEN FREE 2,5 mm² VDE-REG.-NR. 9887 brown red white Standard cable Core-Ø [mm]