Industry's first molded pushbutton with TV rating. Designed to handle large inrush current: JPM models certified for TV-5 rating and JPL models for TV-8 rating. Prominent external insulating barriers increase insulation resistance and dielectric strength. Constructed for dust resistance with interior seal of polyphenylene sulfide (PPS) between actuator and contact area. Specially designed to break light contact welds. Terminals are molded in and epoxy-sealed to lock out flux, dust, and other contaminants. Heat-resistant resin outer case meets UL's 94V-0 flammability standard.