UNI-T UT281F flexible AC power clamp meter — product view 1

UNI-T UT281F flexible AC power clamp meter — product view 2

UNI-T UT281F flexible AC power clamp meter — product view 3

UNI-T UT281F flexible AC power clamp meter — product view 4

UNI-T UT281F flexible AC power clamp meter — display view 5

UNI-T UT281F flexible AC power clamp meter — display view 6

UNI-T UT281F flexible AC power clamp meter — manufacturer illustration 7

UNI-T UT281F flexible AC power clamp meter — manufacturer illustration 8

UNI-T UT281F flexible AC power clamp meter — manufacturer illustration 9

UNI-T UT281F flexible AC power clamp meter — manufacturer illustration 10

UNI-T UT281F flexible AC power clamp meter — manufacturer illustration 11

UNI-T UT281F flexible AC power clamp meter — manufacturer illustration 12

UNI-T UT281F flexible AC power clamp meter — manufacturer illustration 13

UNI-T

UNI-T UT281F Flexible AC Power Clamp Meter — 10,000A

Name: UNI-T UT281F Flexible AC Power Clamp Meter — 10,000A
Brand: UNI-T
SKU: 180200100739X
Price: 274.99 USD
Availability: InStock

$274.99

The UNI-T UT281F combines a flexible AC current sensor with power measurement and Bluetooth data transfer. Its 1,100 mm coil fits around large conductors, with an AC current range up to 10,000A. It is intended for electrical testing by qualified users following the manufacturer’s operating instructions.

Overview

The UT281F pairs a flexible 1100 mm coil with power measurement: it reads AC current up to 10 kA on large or awkward conductors and, beyond current, measures active, apparent, and reactive power with power factor and phase angle — so you can assess load behaviour on a big feeder, not just its current. It's rated CAT III 1000 V / CAT IV 600 V.

True-RMS sensing, a dual display, Bluetooth 5.0 for transfer, and storage for 1050 result sets make it a documentation-ready tool for utility and industrial power work. It's backed by UNI-T's nearly 40 years of test-meter manufacturing.

Key Features

Flexible 1100 mm coil for large and awkward conductors
AC current up to 10 kA (45 Hz–1000 Hz)
Power measurement: active, apparent, reactive, with power factor and phase angle
True-RMS measurement; dual display
AC/DC voltage to 1000 V; resistance to 60 MΩ; continuity
Bluetooth 5.0 for data transfer; 1050-set storage
CAT III 1000 V / CAT IV 600 V; AA battery power

UT281F Details

Flexible-Coil High-Current Measurement

The 1100 mm flexible coil wraps around busbars, cable bundles, and large conductors a rigid clamp can't reach, measuring AC current up to 10 kA across a 45 Hz–1000 Hz band.

Power, Not Just Current

Beyond current, the UT281F measures active, apparent, and reactive power with power factor and phase angle — so you can see how a feeder is actually loaded and where reactive power and poor power factor are costing capacity.

Documentation-Ready

True-RMS sensing on a dual display, Bluetooth 5.0 transfer, and storage for 1050 result sets make it straightforward to capture and move power readings for reports and load studies.

Compare the UT281 Series

	UT281E+	UT281F
Max AC current	9.99 kA	10 kA
Inrush current	Yes	—
Power measurement	—	Active / apparent / reactive, PF, phase
Connectivity	—	Bluetooth 5.0
Data storage	999 sets	1050 sets
Jaw opening	1000 mm	1100 mm

Applications

Feeder and busbar power studies; load and power-factor assessment on large industrial and utility circuits; high-current measurement on conductors a clamp can't reach; and maintenance work that needs power figures documented.

Frequently Asked Questions

What does the UT281F measure beyond current?

Active, apparent, and reactive power, with power factor and phase angle.

How large a conductor can it measure?

Its 1100 mm flexible coil wraps around large busbars and cable bundles; AC current measures up to 10 kA.

How is it different from the UT281E+?

The UT281E+ measures current with inrush capture; the UT281F adds full power measurement and Bluetooth 5.0 transfer.

Specifications

DC Voltage In	1000 V
AC Voltage In	1000 V
AC Current In	10 kA
AC Current Frequency	45 Hz to 1000 Hz
Frequency Range	10 Hz to 30 kHz
Internal Resistance Range	60 MΩ
Max Resistance	60 MΩ
Power Factor	-1 to 1
Phase Angle	-360°–360°
True RMS	Yes
Continuity	Yes
Dual Display	Yes
Data Communication	BT 5.0
Data Storage	1050 sets
CAT Rating	CAT III 1000 V , CAT IV 600 V
Jaw Opening	1100 mm
Display Type	Dual LCD
Battery	3× AA
Ambient Temperature Range	0 °C to 40 °C
Frequency Response	50 Hz to 500 Hz

Explore UNI-T instruments and our test and measurement collection.

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Last updated: October 27, 2026

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Last updated: October 27, 2026

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