C3516.1WUI

Automatic welding filter, variable shade, manual shade control / automatic scale number setting, cutting mode, grinding mode

CW9920XX

WUI

Variable shade, two ranges
Clear state: W3 / Dark states: W5-9 / W9–13
Automatic scale number setting W7<13
Angle dependence of luminous transmittance: V1
Optical sensitivity of welding arc detection (+TIG)

Essential requirements according to
Annex II of the PPE-Regulation (EU) 2016/425
ISO 16321-2 : 2021

16321 WUI W3 / 5-9 / 9-13
W3 / 7<13 V1 +TIG CE

2026-09