Fluke 381 Remote Display TRMS Clamp Meter

The Fluke 381 Remote Display TRMS Clamp Meter sets a new standard for electrical measurement safety and convenience. Designed for professional electricians and engineers, this instrument allows users to measure current in conductors without making direct contact, reducing risk in energized panels. The remote display unit, connected by a flexible current probe, enables safe measurement in confined spaces or around hazardous live parts. With True RMS capability, the Fluke 381 provides accurate readings on both linear and non-linear electrical loads, making it an essential tool for troubleshooting, maintenance, and installation work across industrial and commercial environments.

Fluke 381 Key Features

The Fluke 381 combines advanced True RMS technology with a remote display system that enhances both safety and measurement accuracy. The flexible current probe extends the measurement capability to conductors that are otherwise inaccessible, while the main unit displays readings wirelessly via the 2.4 GHz ISM band. Position sensitivity markers (A, B, C) on the jaw ensure optimal conductor placement for accurate readings, and the TRMS function guarantees precise measurements across various waveform types. This clamp meter is built to withstand demanding workshop environments while delivering the reliability Fluke is known for.

• AC Current via Jaw: 999.9 A range, 0.1 A resolution, 2% accuracy (10-100 Hz)
• AC Current via Flexible Probe: 999.9 A / 2500 A range, 0.1 A / 1 A resolution, 3% accuracy
• DC Current: 999.9 A range, 0.1 A resolution, 2% accuracy
• AC Voltage: 600 V / 1000 V range, 0.1 V / 1 V resolution, 1.5% accuracy
• DC Voltage: 600.0 V / 1000 V range, 0.1 V / 1 V resolution, 1% accuracy
• Frequency Measurement: 5.0 – 500.0 Hz range, 0.1 Hz resolution
• Resistance: 600 Ω / 6 kΩ / 60 kΩ ranges
• Safety: CAT III 1000V / CAT IV 600V with double insulation

Who Needs the Fluke 381?

Electrical maintenance technicians will find the Fluke 381 indispensable for troubleshooting live circuits without the need to disconnect conductors. The remote display feature allows safe measurement from a distance, which is critical when working on energized switchgear or distribution panels. Field engineers performing preventive maintenance will appreciate the flexibility of the current probe, enabling them to measure current in tight conduit spaces or around bundled wires where traditional clamp meters cannot reach. The wireless range of 10 meters provides additional safety by allowing operators to monitor readings from a protected position.

Industrial electricians working on motor controls and variable frequency drives benefit from the Fluke 381’s True RMS accuracy, ensuring proper load analysis on non-linear loads. Building services engineers can use the device for HVAC system commissioning and troubleshooting, while quality control inspectors rely on its precision for compliance testing. Even procurement teams specifying electrical test equipment will value the Fluke 381’s comprehensive specification set and industry-leading safety ratings, making it a sound investment for any organization’s tool inventory.

Fluke 381 Applications

The Fluke 381 excels in electrical panel troubleshooting, where technicians can clamp around bus bars from a safe distance using the remote display. This application is particularly valuable in industrial settings with high-voltage equipment where direct contact measurement poses significant risk. The flexible current probe further extends capabilities to measure current in bus duct systems, generator leads, and motor feeds without dismantling electrical enclosures.

Energy auditing and power quality analysis represent another key application for the Fluke 381. The True RMS measurement capability accurately captures harmonic distortion in modern electrical systems with variable frequency drives and LED lighting. Facility managers can use the device to identify inefficient circuits, while consulting engineers can verify power factor correction equipment performance. The frequency measurement function aids in diagnosing motor speed issues and detecting electrical faults in rotating equipment, making the Fluke 381 a versatile tool for both preventive and predictive maintenance programs.

Why Buy Fluke 381 from Mohammad Mahdi Electronics?

Mohammad Mahdi Electronics ensures every Fluke 381 Remote Display TRMS Clamp Meter comes with authentic manufacturer warranty and genuine calibration certificates. MME provides original products with full traceability and technical support that counterfeit suppliers cannot match. Our knowledgeable staff can assist with product selection, ensuring you receive the correct measurement tool for your specific application requirements.

When you purchase from mme-ae, you benefit from fast shipping across the UAE and comprehensive after-sales service. We stock the complete Fluke lineup including the 381 model, and our team understands the technical specifications that matter for your electrical measurement tasks. Choose Mohammad Mahdi Electronics for genuine Fluke products, competitive pricing structures for bulk orders, and the peace of mind that comes with buying from MME, MME of genuine Fluke instruments who stands behind every instrument they sell.

Fluke 381 Complete Specifications: Electrical specifications include AC current via jaw ranging from 999.9 A with 0.1 A resolution and 2% accuracy (10-100 Hz), extending to 5% accuracy (100-500 Hz). AC current via flexible probe covers 999.9 A / 2500 A range (45-500 Hz) with 3% accuracy. DC current measures up to 999.9 A with 0.1 A resolution and 2% accuracy. AC voltage ranges of 600 V / 1000 V provide 1.5% accuracy (20-500 Hz), while DC voltage ranges deliver 1% accuracy. Frequency measurement spans 5.0-500.0 Hz with 0.1 Hz resolution. Resistance ranges of 600 Ω / 6 kΩ / 60 kΩ offer 1% accuracy. Mechanical specifications show a unit size of 277 x 88 x 43 mm with the remote unit adding 55 mm, weighing 350 g total. Jaw opening measures 34 mm, with flexible current probe diameter of 7.5 mm and cable length of 1.8 m. Environmental operating temperature ranges from -10°C to +50°C, with storage capability from -40°C to +60°C. EMI/RF compliance follows EN 61326 standards and safety ratings include CAT III 1000V / CAT IV 600V with double insulation per IEC standards.

Start your Fluke 381 order today with Mohammad Mahdi Electronics and experience the difference that genuine quality and remote measurement capability can make for your electrical work. Our team is ready to assist with product inquiries and ensure you receive authentic Fluke instrumentation backed by full manufacturer support.

Fluke 381 Specifications

Electrical Specifications
AC Current via Jaw
Range	999.9 A
Resolution	0.1 A
Accuracy	2% ± 5 digits (10-100 Hz) 5% ± 5 digits (100-500 Hz)
Crest Factor (50/60 Hz)	3 @ 500 A 2.5 @ 600 A 1.42 @ 1000 A Add 2% for C.F. > 2
AC Current via Flexible Current Probe
Range	999.9 A / 2500 A (45 Hz – 500 Hz)
Resolution	0.1 A / 1 A
Accuracy	3% ± 5 digits
Crest Factor (50/60 Hz)	3.0 at 1100 A 2.5 at 1400 A 1.42 at 2500 A Add 2% for C.F. > 2
Position Sensitivity
	Distance from Optimum
		i2500-10 Flex	i2500-18 Flex	Error
	A	0.5 in (12.7 mm)	1.4 in (35.6 mm)	±0.5%
	B	0.8 in (20.3 mm)	2.0 in (50.8 mm)	±1.0%
	C	1.4 in (35.6 mm)	2.5 in (63.5 mm)	±2.0%
Measurement uncertainty assumes centralized primary conductor at optimum position, no external electrical or magnetic field, and within operating temperature range.
DC Current
Range	999.9 A
Resolution	0.1 A
Accuracy	2% ± 5 digits
AC Voltage
Range	600 V /1000 V
Resolution	0.1 V / 1 V
Accuracy	1.5% ± 5 digits (20 – 500 Hz)
DC Voltage
Range	600.0 V /1000 V
Resolution	0.1 V / 1 V
Accuracy	1% ± 5 digits
Frequency – Via Jaw
Range	5.0 – 500.0 Hz
Resolution	0.1 Hz
Accuracy	0.5% ± 5 digits
Trigger Level	5 – 10 Hz, ≥ 10 A 10 – 100 Hz, ≥ 5 A 100 – 500 Hz, ≥ 10 A
Frequency via Flexible Current Probe
Range	5.0 to 500.0 Hz
Resolution	0.1 Hz
Accuracy	0.5% ± 5 digits
Trigger Level	5 to 20 Hz, ≥ 25 A 20 to 100 Hz, ≥ 20 A 100 to 500 Hz, ≥ 25 A
Resistance
Range	600 Ω/6 kΩ/60 kΩ
Resolution	0.1 Ω/1 Ω/10 Ω
Accuracy	1% ± 5 digits
Mechanical Specifications
Size (L x W x H)	277 x 88 x 43 mm (55 mm for remote unit)
Weight	350 g
Jaw Opening	34 mm
Flexible Current Probe Diameter	7.5 mm
Flexible Current Probe Cable Length (head to electronics connector)	1.8 m
Environmental Specifications
Operating Temperature	-10°C to +50°C
Storage Temperature	-40°C to +60°C
Operating Humidity	Non condensing (< 10°C) ≤ 90% RH (at 10°C to 30°C) ≤ 75% RH (at 30°C to 40°C) ≤ 45% RH (at 40°C to 50°C) (Without Condensation)
Operating Altitude	2,000 meters
Storage Altitude	12,000 meters
EMI, RFI, EMC, RF	EN 61326-1:2006, EN 61326-2-2:2006 ETSI EN 300 328 V1.7.1:2006 ETSI EN 300 489 V1.8.1:2008 FCC Part 15 Subpart C Sections 15.207, 15.209, 15.249 FCCID: T68-F381 RSS-210 IC: 6627A-F381
Temperature Coefficients	Add 0.1 x specified accuracy for each degree C above 28°C or below 18°C
Wireless Frequency	2.4 GHz ISM Band 10 meter range
Safety Compliance	ANSI/ISA S82.02.01:2004 CAN/CSA-C22.2 No. 61010-1-04 IEC/EN 61010-1:2001 to 1000V CAT III, 600V CAT IV.
Double Insulation Clearance	Per IEC 61010-2-032
Double Insulation Creepage	Per IEC 61010-1
Agency Approvals