ABB 19SHT-202 1 Current Transformer

19SHT-202 current transformer is a solid‑core, ANSI metering‑class window CT designed for high‑current monitoring in electrical panels. It delivers a 2000:5 A ratio (primary up to 2000 A with a 5 A secondary), enabling accurate measurement of large loads with standard 5 A instrumentation and operates at 50/60 Hz. The device features a 4.25‑inch (about 108 mm) window diameter to accommodate sizable conductors, and it is typically foot‑mounted with terminals for straightforward panel or enclosure integration. With a burden rating up to 20 VA and an insulation level of 10 kV BIL, it is suited for indoor metering and energy management applications where reliable current sensing is essential. The 19SHT family is commonly used in panel meters, energy meters, and distribution equipment to provide precise current measurements without interrupting the circuit.