Solid-core current transformer type 'T' with a current ratio of 800/5 and an accuracy class of 0.5 at 15 VA. It is designed for a nominal voltage (primary) of 660 VAC at 50/60 Hz. This transformer can handle a short time current of 50 kA for 0.5s. It has a dielectric quality of 3 kV/1min and an insulation class F (155 deg C). The transformer is cast resin encapsulated and has a degree of protection IP40. It operates within a temperature range of -20 deg C to +80 deg C. The cable diameter opening is 85 mm. This product has been type tested to AS60044.1:2007 and AS1675:1986 standards.