Portable Power Loggers for Energy Audits and Energy Conservation

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HIOKI Clamp On Power Meters are multi-channel power measuring devices utilizing clamp sensor input to accurately and safely measure power on single-phase to three-phase lines. The PW3360 compact 3-Phase 4-Wire energy loggers monitor power demand and other power parameters to aid in energy audits and validate energy saving measures.

Key Features

• Supports single to three-phase, 4-wire circuits
• Measure between 90V to 780V
• Simultaneously measure up to three single-phase, 2-wire circuits (in the same power system)
• Slim, compact design that can be placed anywhere
• Store months of data on SD cards
• The QUICK SET function guides you in making the right connections
• Choose PW3360-21 for harmonic measurements up to the 40th order

Model No. (Order Code)

PW3360-20English model, main unit only
PW3360-21English model, with harmonic analysis function

Note: At least one optional current sensor is necessary to measure current or power parameters. To store measurement data, use only the guaranteed SD cards sold by HIOKI.

USB 2.0



Product Video


Navigate clamp-on power logger operation with graphical, easy-to-use displays of wiring procedures

The PW3360’s QUICK SET feature is an on-screen guide that walks you through the setup process, right up to starting measurement. Even if you’re unaccustomed to how clamp-on power loggers work, you’ll be able to easily configure and connect the instrument for 3-phase power measurement. In addition, by alerting you to any wiring mistakes, the device’s “wiring check” function serves to prevent measurement errors that are caused by undetected wiring mistakes.



Power logger functionality for displaying measurement results as a graph so you can review them at a glance

The PW3360 displays recorded measured values as a graph for convenient use in power management. In addition to instantaneous measured values, you can review maximum, minimum, and average values by moving the cursor on the demand and trend graph displays.



A portable power logger that’s small enough to use in a confined cubicle

This power logger is an essential tool for power-saving activities. Thanks to a compact design that weighs just 550 g, it’s easy to take into the field and install in confined locations.



Get results from the job site in real-time, GENNECT CROSS SF4000

Capture data on the PC while testing remotely


Learn more

Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)

Measurement line & number of circuits50/60 Hz, Single phase 2 wires (1/2/3 circuits), Single phase 3 wires (1 circuit), Three phases 3 wires (1 circuit), Three phases 4 wires (1 circuit), Current only: 1 to 3 channels
Measurement itemsVoltage RMS, current RMS, voltage fundamental wave value, current fundamental wave value, voltage fundamental wave phase angle, current fundamental wave phase angle, frequency (U1), voltage waveform peak (absolute value), current waveform peak (absolute value), active power, reactive power (with lag/lead display), apparent power, power factor (with lag/lead display) or displacement power factor (with lag/lead display), active energy (consumption, regeneration), reactive energy (lag, lead), energy cost display, active power demand quantity (consumption, regeneration), reactive power demand quantity (lag, lead), active power demand value (consumption, regeneration), reactive power demand value (lag, lead), power factor demand, pulse input
[PW3360-21 only]: Harmonic voltage level, harmonic current level, harmonic power level, content percentage, phase angle, total harmonic distortion (THD-F or THD-R), up to 40th order
Voltage ranges600 V AC (Effective measurement range: 90.00 V to 780.00 V)
Current ranges500.00 mA to 5.0000 kA AC (depends on current sensor in use),
50.000 mA to 5.0000 A AC (Leak clamp on sensor only)
Power ranges300.00 W to 9.0000 MW (depends on voltage/current combination and measured line type)
Basic accuracyVoltage : ±0.3% rdg. ±0.1% f.s
Current : ±0.3% rdg. ±0.1% f.s. + clamp sensor accuracy
Active power : ±0.3% rdg. ±0.1% f.s. + clamp sensor accuracy (at power factor = 1)
Display update rate0.5 sec (except when accessing SD card or internal memory, or during LAN/USB communication)
Save destinationSD memory card, or internal memory at real time
Data save interval1 sec to 30 sec, 1 minute to 60 minutes, 14 selections
Save itemsMeasurement value save: Average only / Average, Maximum, Minimum value
[PW3360-21 only]: Harmonic data save: Average only / average, maximum, minimum value in binary format
Screen copy: BMP form (saved every 5 min. at minimum interval time)
Waveform save: Binary waveform data
InterfacesSD memory card
HTTP server function, Remote settings by communication program, or data downloads
USB 2.0: When connected to a PC, the SD card and internal memory are recognized as removable storage devices, Remote settings by communication program, or data downloads
Pulse output: proportional to active power consumption when measuring integral power consumption, Isolated open-collector signal
FunctionsConnection check, Quick Set navigation guide, clock, pulse input
Power supplyAC Adapter Z1006: (100 to 240 V AC, 50/60 Hz), 40 VA (including AC adapter)
Battery Pack 9459: (DC 7.2 V, 3 VA, charging time 6 hr 10 m), 8 hours of continuous use (with back light off)
Dimensions and mass180 mm (7.09 in) W × 100 mm (3.94 in) H × 48 mm (1.89 in) D, 550 g (19.4 oz) without PW9002
180 mm (7.09 in) W × 100 mm (3.94 in) H × 67.2 mm (2.65 in) D, 830 g (29.3 oz) with PW9002
AccessoriesVoltage Cord L9438-53 × 1 set, AC Adapter Z1006 × 1, USB cable × 1, Instruction manual × 1, Measurement guide × 1, Color spiral tubes × 1 set: red, yellow, blue/two each, for color-coding clamp sensors, Spiral tubes for grouping clamp sensor cords × 5



Catalog: GENNECT ONE SF4000

Selection Guide Power Quality Analyzers | Power Loggers

Declaration of Conformity

CLAMP ON POWER LOGGER PW3360-10,PW3360-11,PW3360-20,PW3360-21,PW3360-30,PW3360-31 [101KB]

User Guides

Voltage, Current, and Power Measurement for Cycle-controlled Loads, Phase-controlled Loads, and Inverters


CLAMP ON POWER LOGGER PW3360-20,PW3360-21 [389KB]

Measurement Guide - English

CLAMP ON POWER LOGGER PW3360-20,PW3360-21 [389KB]

Measurement Guide - Korean

CLAMP ON POWER LOGGER PW3360-20,PW3360-21 [389KB]

Measurement Guide - Spanish

CLAMP ON POWER LOGGER PW3360-20,PW3360-21 [389KB]

Measurement Guide - Indonesian

Drivers, Firmware

USB driver (for PW3360/PW3365)

PW3360/PW3365 Auto Excel Graph Creation Application

PW3360/PW3365 Settings and Download Application




500 A to 5000 A

*For commercial power lines, 50/60 Hz



• 10 Hz to 20 kHz (±3dB) • 5000 A/ 500 A AC rated input • 500 mV/f.s. output • φ 100 mm (3.94 in) core dia. to φ 254 mm (10.00 in), 3 loop diameters




• Primary 1000A, secondary 100A (1/10 ratio) output • Superior phase angle characteristics for power

Current input

For power or load current measurement (1 sensor necessary for single-phase measurements, and 2 or 3 sensors required for 3-phase measurements)



• 40Hz to 5kHz • Phase: 45Hz to 5kHz • 5 A AC rated input • 10 mV AC / A output • φ 15 mm (0.59 in) core dia.


• 40 Hz to 5 kHz • Phase: 45 Hz to 5 kHz • 100A AC rated input • 1mV AC/A output • φ 15 mm (0.59 in) core dia.