Industrial plugs & connectors, eureka series Gerard electric india private limited Gerard electric india manufactures eureka series industrial plugs and connectors. The plugs and connectors are available with salient features like quick and easy cabling; colour-coded for fast identification of voltage; different contact configurations for prevention of connecting devices of different voltages; high degree of protection against solid matter or water ingress through use of improved sealing methods; high degree of protection against harmful contacts since the earthing contact is the first to be established and last to be broken and high resistance to water, dirt, grease, chemicals harmful agents.