Ziegler Current Transformers or Ziegler CT's as they are better known are encased with polycarbonate housing . These are available for different ratings , VA burdens & Accuracy classes . with 23x33 mm busbar hole dimension , Accuracy classes 0.5 , 1 , 3 burdens from 1.5 to 10 VA . Cost effective moulded case current transformer . Wide range of system current ratings bus bar sizes, case widths and apertures Various mounting options like wall mounting, cable mounting, bus bar mounting, DIN rail mounting . CLASS OF ACCURACY: - 0.2, 0.2S for Laboratory and Power Measurement - 0.5, 0.55 for accurate measuring, kWh - 1 for General Measurement - 3 for Indicating Instruments Bornika is the exclusive representative of Ziegler company, in purchasing , sales , consulting and distribution of industrial equipment and transformers , including Split Core Current Transformer.