Contact Block, 1NO, 6 A, 500 V, 1 Pole, M22 Series, Screw. Contact Block: Screw Number of Poles: 1 Current Rating: 6 A Voltage Rating: 500 V Number of Normally Open Contacts: 1NO Series: M22 M22-K10 Eaton is a high-quality industrial pushbutton switch designed for various industrial applications. This reliable and durable switch can be purchased at PLC2Day.