Compact Busbar/Base Mounting Current Transformers - Series 162/164. A range of compact moulded case current transformers suitable for primary currents from 30A to 800A with built-in sealable terminal covers. For transforming various primary currents into,5A standard secondary using 20/30/40mm busbars or cables, or 28mm cables. Built-in sealable terminal covers Mounting feet and busbar screws supplied Narrow width DIN rail clip supplied Dimensions: H78 x W60 x D30mm 28 x 40mm aperture Conforms to IEC185, BS 7626, BSEN 60044-1 and IEC 60044-1 Rated system voltage: 0.72/3kV Ambient temperature range: -30 to 85°C Continuous current: 1.2 x rated current. CT Class Information for Series 16 ; 331-395 331-395 - Class 1 ; 331-547 331-547 - Class 1 ; 331-373 331-373 - Class 0.5 ; 331-367 331-367 - Class 0.5 ; 331-446 331-446 - Class 0.5