​Insulating housing: natural polypropylene (PP) Conductive body: brass Captive screw: galvanized steel Self-extinguishing: EN 60335-1: 2002+A2:2006 (par. 30.2.3), EN 60695-2-10 at 850 °C, EN 60695-2-11 Operating temperature: max. 85 °C Degree of protection: IP20 Reference standards: EN 60998-1: 2004, EN 60998-2-1: 2004, EN 60335-1: 2002 + A2: 2006 (par. 30.2.3), IEC/EN 60695-2-11