current transformer 9a615 3 2000 5aProduct Description The 9A615. 3 2000 5A is a high capacity current transformer engineered for precision current measurement and protection in heavy industrial and utility scale power systems. With a primary current rating of 2000 A and a standard 5 A secondary output, this CT is designed to meet the demands of large scale electrical infrastructure. Its durable construction, high thermal endurance, and reliable accuracy make it ideal for integration