current transformer 6a315 3 400 5aProduct Description The 6A315. 3 400 5A is a high performance current transformer designed for accurate measurement and monitoring of electrical current in industrial and commercial applications. With a primary current rating of 400 A and a secondary current of 5 A, this transformer is ideal for use in energy management systems, protection schemes, and metering applications. The transformer is engineered to provide reliable current sensing with high