With rotary release. Incl. yellow disc in 3 languages. The emergency-off mushroom switch is tamper-proof & anti-blocking protected acc. to VDE 0660/ Part 210 & IEC 60947-5-5. Self-cleaning quick-action contacts. VDE tested according to DIN VDE 0660 T.210 (IEC 947-5-5) CE-conformity acc. to EU low-voltage directive 73/23/EWG.