The MPET4-10R is a modular emergency stop front element. It features a 40mm red mushroom-style actuator and is reset by a twist-release action. This non-illuminated component is supplied without a contact block, allowing for customized configurations. The device provides robust environmental protection with a front IP66 rating and a terminal IP20 rating. As part of the modular pilot device range, it is designed for integration into control panels and machinery where a reliable emergency stop function is required.