The L22DR01-3E01 is a 40 mm diameter emergency stop pushbutton unit designed for safety-critical control applications. It features a red mushroom head with push-pull reset mechanism and a yellow collar for side visibility of head position, meeting the requirements of EN 418 / ISO 13850 emergency stop standards. The unit is supplied with a black bezel and includes one normally closed (NC) contact configuration for reliable circuit interruption. With a three-position clip mounting system and overall dimensions of 40 mm diameter × 43 mm height × 20.1 mm depth × 26 mm clip extension, this control unit is suitable for industrial machinery, production lines, and safety systems where immediate emergency shutdown capability is required. The product is part of BACO's comprehensive range of control and signaling units offering excellent modularity and compliance with professional safety standards.