High quality emergency stop mushroom head push button from Techna with key to release actuation. * Red colour * Metal bezel * Non-illuminated * Knob size 40mm * Fully sealed to IP65 Note: These stop buttons require a control block. https://elecena.pl/product/27175459/techna-ptecmetmushk40-emergency-stop-button-key-to-release 2024-11-08 https://elecena.pl/product/27175459/techna-ptecmetmushk40-emergency-stop-button-key-to-release 2026-05-17