- Designed for commercial and residential use
- True RMS AC current measurements up to 400 A
- AC and DC voltage measurement up to 600 V
- Measures resistance to 4000 Ω with continuity
Fluke 323 True RMS Clamp Meter
Built for commercial and residential electricians, the Fluke 323 True RMS Clamp Meter is a compact tool for general electrical troubleshooting. It measures AC current to 400 A, AC and DC voltage to 600 V, and resistance to 4000 Ω with continuity detection. A slim, ergonomic shape supports access in tight cable compartments, while the large display keeps readings easy to view during checks.
True RMS processing provides accurate AC current and voltage measurements on non-linear signals, supporting troubleshooting where distorted waveforms are present. The Hold function captures a reading on screen so the displayed result can be retained after measurement. With CAT III 600 V and CAT IV 300 V ratings, a 30 mm jaw opening and rugged construction, the meter brings core functions together for verifying load current, AC voltage and continuity in circuits, switches, fuses and contacts.
Key Benefits
- True RMS processing supports accurate AC measurements on non-linear signals
- AC current, AC/DC voltage, resistance and continuity functions support general electrical troubleshooting
- Slim, ergonomic construction provides access within tight cable compartments
- The large display keeps measurements clear and easy to read
- Hold captures the current reading and retains it on the display
- Continuity detection supports checks on circuits, switches, fuses and contacts
- CAT III 600 V and CAT IV 300 V ratings identify the supported measurement categories
- Rugged construction is designed for demanding working environments
Common Applications
The Fluke 323 is suitable for a range of electrical troubleshooting tasks, including:
- General electrical troubleshooting
- Commercial electrical troubleshooting
- Residential electrical troubleshooting
- Verifying the presence of load current
- Checking AC voltage
- Checking circuit continuity
- Checking switches, fuses and contacts
Why Choose This Model?
The Fluke 323 is intended for general grab-and-go troubleshooting with AC current, AC/DC voltage, resistance and continuity measurements. The Fluke 324 adds capacitance, contact temperature and a backlit display, while the Fluke 325 also adds DC current, frequency and Min/Max functions.
Product Comparison
| Feature | Fluke 323 | Fluke 324 | Fluke 325 |
|---|---|---|---|
| Model focus | General grab-and-go troubleshooting | General electrical measurements with temperature and capacitance | AC/DC current measurement with additional electrical functions |
| AC current range | 400.0 A | 40.00 A / 400.0 A | 40.00 A / 400.0 A |
| DC current | Not measured | Not measured | 40.00 A / 400.0 A |
| AC/DC voltage | 600.0 V | 600.0 V | 600.0 V |
| Resistance range | 400.0 Ω / 4000 Ω | 400.0 Ω / 4000 Ω | 400.0 Ω / 4000 Ω / 40.00 kΩ |
| Continuity threshold | ≤ 70 Ω | ≤ 30 Ω | ≤ 30 Ω |
| Temperature and capacitance | Not measured | -10.0 °C to 400.0 °C 100.0 μF to 1000 μF |
-10.0 °C to 400.0 °C 100.0 μF to 1000 μF |
| Frequency | Not measured | Not measured | 5.0 Hz to 500.0 Hz |
| Backlight | No | Yes | Yes |
| Min/Max function | No | No | Yes |
| Safety category | CAT III 600 V / CAT IV 300 V | CAT III 600 V / CAT IV 300 V | CAT III 600 V / CAT IV 300 V |
General Specifications
| Specification | Details |
|---|---|
| Product type | True RMS clamp meter for general electrical troubleshooting |
| Supported users | Commercial and residential electricians |
| AC response | True-RMS AC voltage and current |
| Display | Large, easy-to-read display |
| Data hold | Captures and retains the current reading on the display |
| Continuity detection | Beeper threshold ≤ 70 Ω |
| Maximum terminal-to-earth voltage | 600 V |
| Safety category | CAT III 600 V / CAT IV 300 V |
| Safety compliance | IEC 61010-1, Pollution Degree 2 IEC 61010-2-032 IEC 61010-2-033 |
| EMC compliance | IEC 61326-1: Portable, Electromagnetic Environment IEC 61326-2-2 CISPR 11: Group 1, Class A |
| Ingress protection | IEC 60529: IP30, non-operating |
Measurement and Accuracy Specifications
| Measurement Function | Range and Resolution | Accuracy |
|---|---|---|
| AC current | Range: 400.0 A Resolution: 0.1 A |
2.0% ± 5 digits, 45 Hz to 65 Hz 2.5% ± 5 digits, 65 Hz to 400 Hz |
| AC voltage | Range: 600.0 V Resolution: 0.1 V |
1.5% ± 5 digits, 45 Hz to 400 Hz |
| DC voltage | Range: 600.0 V Resolution: 0.1 V |
1.0% ± 5 digits |
| Resistance | Range: 400.0 Ω / 4000 Ω Resolution: 0.1 Ω / 1 Ω |
1.0% ± 5 digits |
Mechanical and General Information
| Specification | Details |
|---|---|
| Operating temperature | -10 °C to +50 °C |
| Storage temperature | -30 °C to +60 °C |
| Operating humidity | Non-condensing at ≤ 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 |
| Operating altitude | 2000 m |
| Storage altitude | 12,000 m |
| Dimensions | 207 x 75 x 34 mm |
| Maximum wire diameter | 30 mm (600 MCM) |
| Weight | 265 g |
| Battery type | 2 x AAA, NEDA 24A, IEC LR03 |
Specification Notes
- Add 2% to the stated AC current accuracy for position sensitivity
- Add 0.1 times the specified accuracy for each degree Celsius above 28 °C or below 18 °C
- The measurement category and voltage rating of a connected combination are limited to the lowest-rated component
Meta Description
Fluke 323 True RMS Clamp Meter measures 400 A AC current, 600 V AC/DC voltage and resistance to 4000 Ω for electrical troubleshooting.
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