Schneider Electric, Harmony, ZB5AS834, Red Ø30 Emergency stop, switching off head Ø22 trigger and latching turn release

Amazon

Red Ø30 Emergency stop, switching off head Ø22 trigger and latching turn release Head-shape of signalling unit Bezel material plastic head standard-mounting diameter 22 mm Integrated LEDs with incandescent and neon lights Screw clamp connection, pins for printed circuit

Radwell UK

EXTENDED MUSHROOM HEAD, PUSHBUTTON SWITCH ONLY ROUND, RED PUSHBUTTON, 22 MM MOUNT HOLE, MAINTAINED (MA), MOMENTARY (MO), SWITCHING OFF, PLASTIC