For fine and ultra-fine-strand conductors, e.
g.
DIN EN 60228 class 5 and 6, for looping through terminals, halogen-free, total length 15.0 mm, 2 x 1 mm², red, length 8 mm, Cu, tin-plated, temperature resistance: up to 105°C, dimensions and colour coding listed in accordance with DIN 46228 Part 4, CSA-listed