Schneider Electric Harmony XB5 Push Button Switch, Plastic, Spring Return, 1NO, 22 mm Mount, Unmarked, Flush Operator Profile, XB5AA21, Black

Amazon

Complete push-button with plastic bezel suitable for the majority of industrial applications Spring return operator Screw clamp terminal connections 1 NO contact configuration IP69, IP67, IP69K, IP66 to IEC 60529; IK03 IEC 50102 degree of protection

Radwell UK

PUSHBUTTON, 230 VAC, 2 AMP, 1 NORMALLY OPEN, SPRING RETURN, UNMARKED, PLASTIC, 22 MM MOUNTING DIAMETER