Brand: Schmersal Item: Emergency stop pushbutton IP Rating: IP65 Requires: Contact blocks and EFR spring element Contact Type: Operator only Operator Type: Mushroom Barrel Size: 30mm Action: Twist-to-release Base Material: Plastic Bezel Material: Metal Operator Color: Red Operator Size: 40mm Operator Shape: Round Operator Material: Metal Schmersal emergency stop pushbutton, IP65, 30mm, twist-to-release, operator only, plastic base, metal bezel, Operator: red, mushroom, 40mm, round, metal. Requires contact blocks and EFR spring element.