The CE4T-10B-02 Machine Stop is: Compact - Machine Stop - Twist release - Maintained - Mushroom 40 mm - Black - Non-illuminated - 2NC - 0 NO - 2 NC - 24 - 300 Volt This Machine Stop is part of ABB's compact range, the most efficient all-in-one solution available, reducing installation time and cost. The compact range has a high level of dust and water resistance.