UNI-T UT275A Earth Clamp Meter

UNI-T UT275A Earth Clamp Meter

The UNI-T UT275A is an advanced earth clamp meter built for electrical engineers, grounding specialists, and safety inspectors who demand higher accuracy and wider measurement range in earth resistance and leakage current testing. No need to disconnect ground electrodes — simply clamp around the earthing conductor for fast, reliable, non-intrusive measurements that keep your grounding systems compliant and your sites safe.

Key Features

• Earth Resistance Measurement: 0.01Ω – 1500Ω — wider range than standard earth clamp meters
• AC Leakage Current: 1mA – 30A for detecting ground faults and stray currents
• True RMS Measurement: Accurate on distorted and non-sinusoidal waveforms
• Large Clamp Jaw: Accommodates larger earthing conductors and bonding straps
• Dual Display LCD: Simultaneous display of resistance and current readings
• Data Hold, MAX/MIN & REL: Capture, compare, and review readings with ease
• Audible & Visual Alarm: Alerts when readings exceed user-defined thresholds
• Auto Power Off: Extends battery life during long field sessions
• Memory Storage: Save and recall measurements on site
• Safety Rating: CAT III 300V

Typical Applications

• Ground resistance testing at substations, transmission towers, and pylons
• Earthing system verification for industrial plants and commercial buildings
• Lightning protection system grounding continuity checks
• Earth leakage fault detection in LV and MV installations
• Routine preventive maintenance of bonding and grounding networks

What's in the Box

• UNI-T UT275A Earth Clamp Meter (main unit)
• Batteries
• Carry case
• User manual

When grounding compliance matters — in substations, industrial plants, or lightning protection systems — the UNI-T UT275A gives you the accuracy, range, and ease of use to get the job done right, every time.