Current transformer CR-1S SERIES

cast resinexteriorthrough-hole

Designed to meet the requirement of a higher current ratio and a higher accuracy, current transformers CR-1S Series have a greater window diameter, which facilitates installation and wiring in a high-current application (with the busbar or multiple insulated wires as the primary conductor). This convenient installation and wiring method decreases the occurrence rate of contact point failure. Multi-ratio models are available upon request (e.g. 4000-2000/5A or 4000-2000-1000/5A). In the multi-ratio models, the burden changes according to its corresponding current ratio, as is stipulated by IEEE and IEC regulations. Insulated with Araldite® epoxy resin, CR-1S Series current transformers are characterized by a pleasing exterior, excellent moisture resistance, and a high level of insulation. • Standard: IEEE C57.13 and IEC • Indoor Use • Frequency: 50 or 60 Hz • AC/BIL: 4/- kV • Ith = 40 In/1S • Burden & Accuracy (IEEE): 0.3 B-0.9 • Burden & Accuracy (IEC): 30(15)VA/1.0(0.2S) CL. • Multi-ratio models and other specifications available.