HIOKI CM4001-90 - AC Leakage Clamp Meter with Bluetooth, 600 A

AC leakage clamp meter with Bluetooth communication for leakage and load current measurements from 600 µA to 600 A, max. conductor diameter 24 mm, True RMS, 50/60 Hz filter, threshold alarm, CAT III 300 V

HIOKI CM4001-90 AC leakage clamp meter Bluetooth measuring range 060 mA to 600A testing

HIOKI CM4001-90 AC leakage clamp meter bluetooth frequency range 40-1000Hz measuring hand

HIOKI CM4001-90 AC leakage clamp meter with Z3210 bluetooth adapter

€528.00*

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€528.00*

HIOKI CM4001-90 - AC Leakage Clamp Meter with Bluetooth, 600 A

Product number: CM4001-90

EAN: 4536036013692

Length: 160 mm

Width: 37 mm

Height: 27 mm

Weight: 0.115 kg

Product information HIOKI CM4001-90 - AC Leakage Clamp Meter with Bluetooth, 600 A

Key Specifications

Leakage current measurement from 600 µA to 600 A
Slim jaws, max. conductor diameter 24 mm
50/60 Hz filter for stable leakage current measurement
Threshold alarm for quick leakage detection
Bluetooth communication

Typical Applications

Checking operation of Residual Current Devices (RCDs) and Ground Fault Circuit Interrupters (GFCIs)
Locating insulation faults and earth leakage paths
Inspecting distribution panels and switchboards with limited space
Measuring load current and verifying circuit load balance
Comparing leakage current across multiple circuits during maintenance

Feature	CM4001 CM4001-90	CM4002 CM4002-90	CM4003 CM4003-90
Designed for	Confined panels, leak and load currents	µA leakage diagnosis, RCD/GFCI faults	Long term monitoring, intermittent faults
Lowest measurable current	600 µA	60 µA
AC Current ranges	5 ranges: 60 mA to 600 A	6 ranges: 6 mA to 200 A
Max. conductor diameter	24 mm	40 mm
Measurement output	-		RMS and waveform
Safety Rating	CAT III 300 V	CAT IV 300 V CAT III 600 V	CAT III 300 V

Detailed Product Overview

Leakage currents in electrical installations can cause nuisance RCD trips, insulation faults, or unexpected shutdowns that are often difficult to locate. The HIOKI CM4001-90 combines the CM4001 AC leakage clamp meter with the Z3210 Bluetooth adapter in a single set, adding wireless communication for data transfer. The instrument measures currents from 600 µA to 600 A and captures both very small leakage currents and higher load currents in electrical installations. Slim jaws with a 24 mm opening allow measurements between closely spaced conductors in distribution panels and control cabinets.

Versatile for Leak and Load Currents

The instrument detects leakage current as well as differential and load currents using True RMS measurement. Clamping all active conductors of a circuit together allows measurement of the resulting residual current for checking the operation of Residual Current Devices (RCDs) and Ground Fault Circuit Interrupters (GFCIs). Clamping a single conductor instead provides load current measurement for evaluating circuit conditions and identifying abnormal current consumption in connected equipment.

The instrument provides five measurement ranges from 60.00 mA to 600.0 A AC. Leakage currents can be measured from 600 µA up to 600.0 A, covering both small leakage currents and higher load currents with a single device. Its frequency characteristics extend from 40 Hz to 1 kHz. A built-in low-pass filter suppresses high-frequency components and isolates the 50/60 Hz leakage current relevant to RCD operation, even in installations with inverters or switching power supplies.

Functions for service and troubleshooting

The instrument includes a comparator function that signals when measured values exceed a preset threshold using a buzzer and red warning backlight. The comparator function can also be used for event logging of leakage current events when used with the Z3210 Bluetooth adapter. Additional features include frequency measurement, Auto Hold, Max/Min/Avg recording, inrush current measurement up to 150 ms, and peak value capture, supporting diagnostic work in electrical installations.

With a CAT III 300 V safety rating, the instrument is intended for measurements in fixed installations, distribution panels, and electrical switchboards in residential, commercial, and industrial environments. Its compact design and measurement capabilities support service and maintenance work in electrical installations.

Wireless Communication

Since the Z3210 wireless adapter is included in the CM4001-90, Bluetooth communication is available without additional accessories. Measurement data can be transferred to the GENNECT Cross app for iOS and Android to document leakage current measurements, add annotations, and generate reports directly on site. The wireless connection also allows the meter’s readings to be viewed in real time on a smartphone or tablet, which is useful when the instrument is positioned where the display cannot be easily seen.

The Z3210 also supports HID operation, allowing measured values to be entered directly into Excel templates or other applications. In this mode, the adapter is recognized by the operating system as a Bluetooth keyboard, enabling straightforward data transfer to Windows PCs, tablets, or smartphones.

Designed and manufactured in Japan.

HIOKI clamp meters are developed and built at the company’s own facilities in Nagano, Japan, ensuring consistent measurement accuracy, mechanical precision, and long-term reliability

CM4001 AC Leakage Clamp Meter
Z3210 Bluetooth Adapter
Carrying case
Strap
Instruction manual
Operating precautions
1x LR03 (AAA) alkaline battery

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