Modern Insulators Ltd manufactures High Pressure Hollow Insulator. Modern Insulators Ltd is an ISO 9001: 2000 and ISO 14001: 2004 certified company. The High Pressure Hollow Insulator is available with high strength and is suitable for use with SF6 circuit breakers, Lightning arrestors and Instruments transformers. The High Pressure Hollow Insulator is an apparatus available with porcelain housing and comes in the range of 33KV to 765 KV.