- Choosing a selection results in a full page refresh.
WHATSAPP US AT
+92 300 8545795
The UNI-T UT281C is a professional-grade, 3000A true RMS flexible clamp meter engineered for electricians, industrial maintenance technicians, and utility workers who need to measure massive currents in tight, hard-to-reach spaces . As part of UNI-T's prestigious Pro Line series, this instrument features a Rogowski flexible coil that can wrap around large conductors, busbars, or densely packed wiring without requiring direct contact or circuit disconnection .
Designed to tackle the most challenging electrical environments, the UT281C combines high-accuracy measurement capabilities with industrial-grade durability, including IP54 dust and water resistance and certified 2-meter drop protection . With its ability to measure AC current up to an astounding 3000A and an extended 18-inch flexible coil, the UT281C is the ultimate tool for power distribution, industrial maintenance, and heavy electrical troubleshooting .
Massive 3000A AC Current Measurement: Measures AC current up to 3000A across three selectable ranges (30A/300A/3000A) with ±(3%+5) accuracy .
Extended Flexible Rogowski Coil Design: 45.7cm (18-inch) flexible coil with 8mm diameter can be bent and shaped to fit around large conductors and into tight spaces where rigid clamps cannot reach—30% longer than the UT281A model .
True RMS Technology: Provides accurate readings even with non-linear or distorted AC waveforms, essential for modern power electronics and variable frequency drives .
Industrial-Grade Durability: IP54 rating provides protection against dust ingress and water splashes. Certified 2-meter drop protection ensures your investment survives job site accidents .
Inrush Current Capture: Long press the INRUSH key for 2 seconds to measure inrush current (0.5A~3000A), essential for analyzing motor start-up currents and transformer energization .
Frequency Response: 45Hz to 500Hz frequency response for accurate measurements on power systems and motor drives .
Large Backlit LCD Display: 1.8-inch (32×34mm) display with 3000-count resolution for clear readings in any lighting condition .
User-Friendly Features: Manual ranging, data hold, buzzer, auto power off, and low battery indication .
Safety Certified: CAT IV 600V safety rating for use on primary power distribution systems, with CE, UKCA, and cETLus certifications .
The UNI-T UT281C delivers professional-grade accuracy for high-current AC measurements .
| Function | Range(s) | Basic Accuracy |
|---|---|---|
| AC Current (A) | 30.00A / 300.0A / 3000A | ±(3% + 5 digits) |
| AC Current Frequency Response | 45Hz ~ 500Hz (sine wave) | √ |
| Inrush Current | 0.5A ~ 3000A | For reference |
| Measurement Conversion Rate | 3 times/second | √ |
| True RMS Measurement | √ | √ |
| Item | Quantity |
|---|---|
| UNI-T UT281C True RMS Flexible Clamp Meter | 1x |
| AAA Batteries (1.5V R03) | 3x |
| User Manual (English) | 1x |
| Gift Box / Blister Packaging | 1x |
Note: Unlike the UT281E, the UT281C does not include test leads or PC software CD as standard .
The UT281 series offers three distinct models, with the UT281C positioned as the mid-range model with extended coil design :
Set the rotary switch to the appropriate current position (30A, 300A, or 3000A) .
Wrap the flexible Rogowski coil around one conductor only—measuring multiple conductors will produce incorrect readings .
The 18-inch (45.7cm) coil can be bent and shaped to fit around large cables, busbars, or through crowded panels .
True RMS technology ensures accurate readings even with distorted waveforms .
Long press the INRUSH key for 2 seconds to enter inrush current measurement mode .
Start the motor or equipment under test—the meter captures the instantaneous inrush current (0.5A~3000A, for reference) .
Application: Essential for analyzing motor start-up currents, transformer energization, and circuit breaker testing.
The UT281C uniquely includes AC voltage (600V), resistance (60MΩ), and frequency (20Hz~30kHz) measurement capabilities .
Connect test leads (purchased separately) to measure voltage, resistance, and frequency.
Application: Versatile troubleshooting without needing a separate multimeter.
Unlike traditional iron-core CTs, Rogowski coils do not saturate under high currents, ensuring linear performance up to 3000A .
The air-core design eliminates heavy iron, making the coil flexible and easy to position.
Safe open-circuit operation—can be operated with the secondary open without dangerous voltage buildup.
Meter automatically shuts down after approximately 15 minutes of inactivity to conserve battery life .
Low battery indication alerts when batteries need replacement .
The UT281C incorporates multiple advanced safety features to protect users :
CAT IV 600V Rating: Suitable for measurements on primary power distribution systems—the highest safety rating for portable meters .
IP54 Protection: Dust and splash resistant for reliable operation in harsh environments .
2-Meter Drop Protection: Certified to withstand accidental falls from workbenches and ladders .
Insulated Rogowski Coil: Fully insulated flexible coil for safe operation around live conductors.
Low Battery Indication: Prevents false readings due to insufficient power.
Auto Power Off: Conserves battery and prevents accidental discharge.
Certifications: ETL/Intertek certified 3rd edition CE, meeting IEC61010-1:2010, IEC61010-2-032:2012, IEC61326-1:2013 standards .
The UNI-T UT281C's extended flexible coil design and massive 3000A capacity make it uniquely suited for :
Measuring currents on large transformers, busbars, and main service entrances.
Checking feeder cables in substations and switchyards.
Verifying phase loads on three-phase power distribution systems.
Troubleshooting motor control centers (MCCs) and switchgear.
Measuring current on large industrial machinery and manufacturing equipment.
Monitoring load currents on heavy industrial installations.
Commissioning new electrical installations with large conductors.
Verifying load currents during plant start-ups.
Working in electrical rooms with densely packed wiring.
Measuring AC current from large solar inverter outputs.
Troubleshooting wind turbine generators and power converters.
Monitoring grid-tie connections for commercial solar installations.
Measuring traction currents in railway systems.
Troubleshooting electric vehicle charging infrastructure.
Monitoring power distribution in marine and port facilities.
Users consistently praise the UT281C for its excellent build quality, extended coil reach, and exceptional value .
Build Quality: "The UNI-T PRO UT281C clamp meter is not only useful for electricians but also for electrical installers who frequently and quickly perform electrical tests on a daily basis. Using the PRO UT281C ensures users a safe and stable operation along with reliability" .
Extended Reach: The 18-inch coil (45.7cm) is 30% longer than the UT281A, allowing access to larger conductors and more confined spaces .
Durability: The IP54 rating and 2-meter drop protection provide confidence in demanding industrial environments .
Versatility: Users appreciate the inclusion of voltage, resistance, and frequency measurement capabilities—features not available on all flexible clamp meters .
Safety Certification: The ETL/Intertek certification provides third-party verification of safety and quality standards .
No Test Leads Included: Unlike the UT281E, the UT281C does not include test leads for voltage/resistance measurements .
Manual Ranging Only: Range selection is manual rather than auto-ranging .
Single Display: Single interface display (vs. dual display on UT281E) .
No AC Voltage/Resistance on All Models: Only UT281C and UT281A include these features; some competing models may not .
Choose the UT281C if: You need the extended 18-inch coil for larger cables, busbars, or deeper panel access, while still requiring voltage/resistance/frequency measurement capability.
Choose the UT281A if: Space is at a premium and you need a more compact coil (10-inch) but still require the same measurement capabilities .
The UNI-T UT281C is the definitive choice for professionals who need to measure massive AC currents up to 3000A in tight or hard-to-reach spaces with the added benefit of voltage, resistance, and frequency measurement capabilities. Its extended 18-inch flexible Rogowski coil design, industrial-grade durability (IP54/2m drop proof) , and comprehensive measurement features make it exceptionally well-suited for power distribution, industrial maintenance, and utility applications .
While traditional rigid-jaw clamp meters struggle with large conductors or crowded panels, the UT281C's 18-inch flexible coil wraps around the toughest obstacles with ease, providing 30% more reach than the UT281A . The inclusion of voltage, resistance, and frequency measurement adds exceptional versatility, reducing the need for multiple tools .
The official UNI-T product page summarizes it best: "UT281 series can measure large currents in various harsh and hard to reach environments. They are designed with Rogowski flex coil and can test up to 3000A AC current. Due to the ease in operation, accurate readings, stable performance and reliable quality, these flex clamps are ideal tools for electricians" .
Whether you're a utility technician measuring transformer loads, an industrial electrician troubleshooting switchgear, or a contractor working in tight electrical rooms, the UT281C delivers professional-grade performance with the safety features and durability you can trust.
Thanks for subscribing!
This email has been registered!