Uses 15A-300A YT / GZ / YZ sparking broadcast plugs and sockets series product applications in the electrical connection between field mobile power station with cable and load. Widely used in the field of petroleum, chemical, defense, power and transportation. Plugs, sockets aluminum case, the electrical contact surface of silver wire termination crimp. Plug with fast, easy to wire, reliable electrical contact, good sealing and insulation, waterproof and dustproof impact shock, long life characteristics. Compliance BG3936.8-2003 "Electrical apparatus for explosive gas atmospheres - Part 8" n-type electrical equipment standard. The explosion-proof electrical products the products designated by the National Quality Supervision and Inspection measure center inspection Ex-mark: ExnA11T4, obtain proof certificate and production license. Scope altitude does not exceed 2000m relative humidity not more than 95% (+25 ° C) ambient temperature -20 ° C ~~ +40 ° C explosive gas mixture spaces: Zone 2 explosive gas mixture: Ⅱ A, B, C II operating voltage of the main technical parameters: AC220V, AC400V Operating Current: 15A, 25A, 60A, 100A, 150A, 200A, 300A Mechanical life: 1000 contact resistance: 0.0008Ω Insulation resistance: 100MΩ Insulation Dielectric strength: 2000V (220V) 2500V (400V) Protection class: IP54