BS230,BS216,BS211 Pushbutton switch: 1.Model:BS series 2.Standard: IEC/EN 60947-5-1 3..Certificate:ISO9001/14001,CE BS230,BS216,BS211 Pushbutton switchwww.cncelegroup.com specifications1) Ambient temperature: -25 - 70°C2) Rated insulation voltage: UI=500V3) Pollution class: III4) Degree of protection: IP65/IP665) Altitude above sea level: <2,000m6) Meets IEC60947-5-1, EN60947-5-1