RS PRO ICMA1 Clamp Meter, Max Current 300A ac, 300A dc CAT III 600 V With RS Calibration

Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): TW
Product Details

RS PRO ICMA1 Current Clampmeter

From RS PRO, this ICMA1 Clamp meter is a high performing solution for current measurement. The clampmeter utilises Hall Effect technology and nickel steel alloy jaws for precise measurement of ac and dc current up to 300 A.

It functions as a current meter and can measure inrush current and low pass filter.

Battery-powered for maximum portability, and with a large backlit screen, this current clamp meter is ideal for on-the-go applications in almost any environment.

It is also supplied in a carry case to keep the clampmeter safe and secure during transit.

Features and Benefits

• 6000 Count large-scale LCD display with backlit
• AC-DC current measuring capability up to 300 A
• Automatically detect DCA/ACA with AC True RMS reading mode
• 10 mA Resolution
• 1.5% basic DCA/ACA accuracy
• Inrush Current Measurement for monitoring motor start-up current
• Smart Data Hold
• Low Pass Filter for variable speed drive applications
• DCA Zeroing
• Auto Power Off (20 min.)
• VoltSense™ feature (Non-contact voltage detecting)
• Up to 25 mm dia. Conductor size

This current clamp meter is designed for current measurement in electrical testing, and combines a digital multimeter with a clamping current sensor. The nature of the clamp means that it can fit around a wire at any point to sense AC and DC Current as well as inrush current. This has the advantage of allowing electricians to take a reading from a wire without touching it, which is both more convenient and safer than other methods.

They are used for measuring high levels of current in service and maintenance applications. They are also used when installing electrical equipment.


RS PRO aims to be your go-to brand when you need reliability, quality, and affordability. We source high-quality tools and parts from trusted sources and employ expert testing to build a brand you can rely on.

When it comes to test and measurement equipment, RS PRO has an extensive range of solutions. From electrical to environmental measurement, we offer calibrated and multi-function instruments to suit your needs.


IEC 61010-1: CAT III 600 V

Supplied with

LR44 button cells (installed), user manual and carrying pouch

Attribute Value
Absolute Maximum AC Current Measurement 300A ac
Absolute Maximum DC Current Measurement 300A dc
Model Number ICMA1
Calibrated RSCAL
AC Current Measurement Resolution 0.01A
DC Current Measurement Resolution 0.01A
Best DC Current Accuracy ±1.5% + 5 Digits
Clamp Meter Type Current, Voltage
Best AC Current Accuracy ±2.5% +5 Digits
Safety Category Level CAT III
Weight 140g
Maximum Conductor Size 25 (Dia.)mm
Length 60mm
Width 31mm
Non-Contact Voltage Detector Yes
Maximum Operating Temperature +50°C
Display Type LCD
Height 147mm
Minimum Operating Temperature 0°C
Power Source Battery
True RMS Yes
Safety Category CAT III 600 V
Functions Measured AC Current, DC Current, Inrush Current, Low Pass Filter
Dimensions 60 x 31 x 147mm
Battery Type A76, LR44
Safety Category Voltage 600V
Battery Life 20 h
170 In stock for delivery within 3-5 working days
Price Each
Was kr 1 271,00
kr 1 170,97
(exc. VAT)
kr 1 463,71
(inc. VAT)
Per unit
1 +
kr 1 170,97
Not available for next day delivery
Related Products
Confidently take reliable readings with the True-rms, Fluke ...
Confidently take reliable readings with the True-rms, Fluke 355 digital clamp meter; the tool of choice for high current clamp-on amp meter measurement up to 2000 A. The extra-wide jaw easily clamps around large conductors, typically found in high-current applications. ...
RS330 is a great value clamp meter designed ...
RS330 is a great value clamp meter designed to verify the presence of load current, voltage and resistance. Its small body and jaws fit beautifully into the hand. Features include a large, easy-to-read, backlit display. 400 A AC current measurement. ...
The DCM305E is designed to check earth leakage ...
The DCM305E is designed to check earth leakage currents, however the upper range enables TRMS AC current measurements of up to 100 A. TRMS meters can measure both pure, undistorted, sinusoidal AC waveforms and non-sinusoidal AC waveforms which can contain ...
The Megger digital clamp meter is an ideal ...
The Megger digital clamp meter is an ideal clamp meter for use during the installation, maintenance and checking of electrical systems and equipment. The large clamp jaw enables cables to be measured up to 27mm diameter. It covers the majority ...