Pico Technology TA325

Pico Technology TA325 30/300/3000A AC 3-phase flex current probe

The TA325 is a 3-phase AC current probe utilizing the Rogowski coil principle, used to measure AC current up to 3000 A when used with oscilloscopes, recorders or data loggers. The flexible probe allows current measurements on hard-to-reach conductors. 

Rogowski coil technology has a couple of advantages over CT (current transformer) technology: when measuring multiple phases, the phase difference is small and predictable for higher frequency harmonic analysis applications; also, Rogowski coils do not have magnetic materials to saturate and so have excellent linearity. 

The probes provide a 3 V full-scale AC output proportional to the current being measured with three selectable ranges: 30 A, 300 A and 3000 A. 

When using the TA325 with a PicoScope 4444 differential scope, ensure that you purchase three TA271 D9-BNC adaptors. These can be found under the Accessories tab on this page.

• External power via 2.1mm (0.08") mini power connector
• Low battery indication, overload indication
• 0.5m coax cable with 3 shrouded BNC connector
• 610mm (24"), double insulated probe length, 9.9mm (0.39") probe diameter
• 2m (78.7"), probe to integrator output cable
• Operating temperature range from -20°C to +65°C
• Safety standards EN 61010-1, EN 61010-2-032
• 1000V RMS CAT III, 600V RMS CAT IV rated
• 30V maximum between output and ground
• Two AA MN1500 LR6 alkaline batteries or an external power supply (+3V / 100mA)