Field Instruments

Product Overview

The Fluke 355 True-RMS 2000 A Clamp Meter is a heavy-duty, high-current measurement tool purpose-built for industrial plants, utilities, and electrical contractors working with large conductors and high-power systems. With its extra-wide 58 mm jaw and 2000 A AC/DC true-RMS current capability, it delivers reliable, accurate measurements in demanding high-energy environments.

Designed for safety and productivity, the Fluke 355 features inrush current measurement, low-pass filtering for noisy loads, and full voltage, resistance, and frequency measurement—making it a versatile all-in-one diagnostic tool. Its high safety ratings and rugged construction make it ideal for switchgear, transformers, busbars, motors, and utility installations.

Key Features

• True-RMS AC/DC Current Measurement – Accurate readings on non-linear loads
• High Current Capability – Measure up to 2000 A AC/DC
• Extra-Wide 58 mm Jaw – Easily clamps large or multiple conductors
• Inrush Current Measurement – Captures motor and transformer startup current
• Voltage Measurement (355 only) – Up to 1000 V AC/DC
• Resistance Measurement – Up to 400 kΩ with continuity beeper
• Low-Pass Filter – Stabilizes readings on noisy loads and VFD outputs
• MIN / MAX / AVG Recording – Quickly analyze load variations
• Large Backlit Display – Clear visibility in low-light environments
• Display Hold Function – Capture readings in hard-to-see locations
• High Safety Rating – CAT III 1000 V / CAT IV 600 V

Technical Specifications

Manufacturer: Fluke
Model: 355
Type: True-RMS High-Current AC/DC Clamp Meter

Measurement Functions

AC / DC Current

• Range:
– 40 A / 400 A / 2000 A (1400 A AC RMS)
• Resolution:
– 10 mA / 100 mA / 1 A
• Accuracy (10 Hz – 100 Hz):
– ±(1.5 % + 5 digits)
• Accuracy (100 Hz – 1 kHz):
– ±(3.5 % + 5 digits)

Inrush Current

• Captures true startup current for motors and inductive loads
• High repeatability and accuracy

AC / DC Voltage (355 only)

• Range: Up to 1000 V DC, 600 V AC RMS
• Resolution: 1 mV to 1 V
• Accuracy: ±(1 % + 5 digits)

Resistance (355 only)

• Range: 0 – 400 kΩ
• Resolution: 0.1 Ω to 100 Ω
• Continuity Beeper: Yes

Frequency

• Range: 5 Hz – 1 kHz
• Accuracy:
– 0.2 % (5–100 Hz)
– 0.5 % (100 Hz – 1 kHz)

Display & Construction

• Large digital LCD with backlight
• Extra-wide 58 mm jaw opening
• Rugged industrial housing
• Designed for utility and high-energy applications

Safety Ratings

• CAT III 1000 V
• CAT IV 600 V
• Complies with IEC 61010-2-032

Power Supply

• 6 × AA batteries
• Typical battery life: ~100 hours (backlight off)

Environmental Specifications

• Operating temperature: 0 °C to +50 °C
• Storage temperature: –20 °C to +60 °C
• Operating altitude: up to 2000 m
• IP42 (indoor use)

Applications

• High-current industrial electrical systems
• Utility and substation maintenance
• Switchgear and busbar measurements
• Large motors and transformers
• Power distribution panels
• Industrial and commercial electrical troubleshooting

Why Buy from FieldInstruments.lk?

• 100% genuine Fluke instruments
• Competitive pricing with fast island-wide delivery
• Trusted supplier for professional electrical test equipment
• Expert local technical support and after-sales service

Fieldinstruments.lk
50/3, Angampitiya Rd, Ethul Kotte, Sri Lanka. 10100.
Phone: +94718555888 Email: info@fieldinstruments.lk