GE FANUC UR8AH CT/VT Module UR 8AH

Description

The GE FANUC UR8AH CT/VT Module is a multifunctional relay and analog input expansion module belonging to the GE Multilin UR series, designed for industrial automation and power system applications. Key features include integrated current transformer (CT) and voltage transformer (VT) input functions, plus digital input/output capabilities, enabling accurate current and voltage measurement, equipment status monitoring, protective triggering, and control signal output. It converts CT/VT signals into processable analog or digital signals for PLC, DCS, SCADA systems, or GE power protection relays, supporting core tasks like overcurrent, overvoltage, and undervoltage protection, as well as motor speed control and power monitoring.

Technical specifications include a 0.5 class (0.5%) measurement accuracy, a frequency range of 48Hz to 62Hz, and rated input values of 5A current and 300V voltage, with support for CT inputs from 5A to 5000A and VT inputs from 24V to 600V. It offers flexible communication via RS-232, RS485, and Modbus protocols for data transmission and remote access, with an auxiliary power option of 24V DC, or a wide input range of 90-300 VDC / 70-265 VAC. Physical variants include two main configurations: one measuring 140 mm x 176 mm x 89 mm at 1.5 kg, and a compact plastic version at 80 mm x 60 mm x 30 mm and 200 grams, with an IP20 protection rating. Operating temperature ranges from -25 degrees Celsius to 70 degrees Celsius, with storage temperatures from -40 degrees Celsius to 80 degrees Celsius, and non-condensing relative humidity of 5% to 95%. It is ideal for power system protection in substations, generators, and transformers, industrial process control, and as an auxiliary tool for test and measurement equipment like oscilloscopes and power analyzers.