The 84-5240.0040 is a maintained-action emergency stop switch designed for panel mounting in a Ø 22.3 mm cut-out. It features a non-illuminated, red-white, Ø 32 mm mushroom-head actuator and is equipped with two normally closed (2 NC) gold contacts. The switch connects via a 300 mm flat ribbon cable and has a rated operational voltage of 250 VAC/DC and a thermal current of 5 A. With a robust design offering IP65, IP66, and IP67 front protection and a mechanical life of 250,000 cycles, this switch ensures reliable performance in safety-critical industrial applications.