Finger-Proof-protection-for-IP-20-protection-against-accidental-contact Captive-'never-to-loose-screws' Tunnel-terminal-preventing-screwdrivers-from-slipping Laser-marking-on-mechanisms.-Arrow-showing-the-correct-orientation-of-the-mechanism The-latest-IS-3854:1997 Fully-shrouded-internal-mechanism-under-the-rocker-preventing-visibility-of-sparks Sockets-are-shuttered-for-child's-safety-against-electric-shocks
