TDK Corporation has expanded its CCT series of clamp ac current sensors with two new types that are rated for 300A and 80A. The new sensors are designed for use in the power distribution panels in a variety of energy management systems. With a current transformation ratio of 3000:1 the 300-A and 80-A types offer maximum output currents of 100 mA and 26.6 mA, respectively. The new clamp ac current sensors have an integrated open-circuit protection element for voltage peak suppression.
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The 300-A type features a clamp inner diameter of 24 mm and is suitable for high current applications such as the energy management systems (EMS) in buildings, factories and stores (BEMS, FEMS, SEMS). It achieves its high current rating as a result of its optimized sensor shape and the high-performance ferrite material developed especially for current sensors.
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