Uni-T 251C Leakage Current Clamp Meter

The Uni-T 251C is a high-accuracy, high-sensitivity leakage current clamp meter specifically designed for measuring AC leakage current with professional-grade precision. Featuring a robust 10,000 count LCD display, this tool provides the accuracy necessary for detecting even the smallest insulation failures or current imbalances before they escalate into major electrical hazards.

Equipped with auto-ranging capability and a sampling rate of 2 times per second, the UT251C allows technicians to monitor current flow up to 600A with a resolution as fine as 1mA. Its integration of modern data logging via an RS-232 interface ensures that findings can be exported to a PC for detailed reporting, documentation, and long-term diagnostic analysis.

Why It Matters

Electrical leakage is a primary cause of equipment failure, fire hazards, and safety risks in both residential and industrial environments. The UT251C provides a non-invasive way to identify these faults early, ensuring regulatory compliance and preventing costly downtime or dangerous short circuits in motors and home appliances.

What's Included

• 1 x Uni-T 251C Leakage Current Clamp Meter
• 1 x 9V Battery (6F22)
• 1 x RS-232 Interface Cable
• 1 x PC Software CD
• 1 x Carrying Bag
• 1 x Toolbox
• 1 x English Manual
• 1 x 12-Month Warranty

Features & Benefits

• High Precision Measurement: Reliable detection of AC leakage current ranging from 0.001mA up to 600A.
• Large Digital Display: 4-digit LCD with a 10,000 display count ensures clear readability in various lighting conditions.
• Data Management: Built-in storage for up to 99 sets of data points for on-site review.
• PC Connectivity: Includes an RS-232 interface to facilitate easy data transfer and professional analysis.
• Smart Power Design: Features an auto power-off function (5 minutes) and low battery indication to maximize field life.
• Peak Hold Function: Capture and freeze maximum values instantly for easier troubleshooting of intermittent faults.

Applications

• Industrial motor leakage testing and preventative maintenance.
• Troubleshooting insulation faults in home appliances and commercial HVAC units.
• Safety inspections for complex power distribution networks.
• Monitoring circuit integrity in systems up to 600V.

Specifications Table

Tradie Pro Tip

When testing for leakage current on a single-phase circuit, clamp both the active and neutral wires together. In a healthy system, the magnetic fields should cancel out to zero. Any reading you see on the UT251C represents the actual current leaking to the earth, allowing you to find the fault location significantly faster.

Pair With

• Insulated Electrical Tool Kits
• Uni-T Digital Multimeters
• Voltage Detectors and Probes

Keep Your Space Clean

Ensure your electrical installations are safe, efficient, and compliant. Order your Uni-T 251C Leakage Current Clamp Meter from HVAC Shop today for reliable, high-sensitivity diagnostic power.