FLIR CM55 Clamp Meter, Max Current 3kA ac CAT III 1000 V, CAT IV 600 V

  • RS Stock No. 906-3918
  • Mfr. Part No. CM55
  • Manufacturer FLIR
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

FLIR Flexible Clampmeters CM55 & CM57

FLIR flexible clampmeters CM55 & CM57 are ergonomic tools designed to access locations that are either difficult for, or beyond the capability of, traditional hard jaw clampmeters. The diference between the two instruments is in size of loop: CM55 ( 906-3918 ) has a 25.4 cm (10 in) coil for manoeuvrability, compactness and convenience; CM57 ( 906-3912 ) has a 45.72 cm (18 in) coil for larger and multiple conductor measurements, double-wrap requirements and deeper access. Positional error (distance from optimum) is: for CM55 0.6 in (15mm) ±2.0%, 1.0 in (25mm) ±2.5%, 1.4 in (35mm) ±3.0%; for CM57 1.4 in (35mm) ±1.0%, 2.0 in (50mm) ±1.5%, 2.4in (60mm) ±2.0%. These are standalone meters, not test current clamps, so users do not need to carry additional instruments. CM55 and CM57 can measure inrush current - spikes in current when motors or other equipment ramp up to operational speed and states. Built-in Bluetooth compatibility enables wireless connection to android devices for remote diagnosis and monitoring. Once the meters are connected to smart devices via Bluetooth, users can upload data through the Flir Tools app wirelessly (without the need for a USB or other sync cable).


Maximum AC current 3000A AC
True RMS AC response
AC current ranges and resolution 30A, 300A, 3000A
Basic AC current accuracy (of reading) ± 3.0% + 5 digits
Maximum resolution 0.01A
AC current bandwidth 45Hz – 500Hz (sine wave)
Inrush current min 0.5A, 100mS
Data record mode 20000 points , 1 min sample rate


3000 count LCD with backlight and multi‐function indicators
Flex coil diameter 7.5mm (0.3 inch)
Flex coil tip diameter 13mm (0.5 inch)
Two white LEDs work light
Bluetooth range (maximum) 10m (32 ft)
Wireless ID# maximum up to 20
Power supply 1.5V AAA battery (x2)
Drop tested to 3m (9.8 ft)


EN61010-1, EN61010-2-032, EN61326-1

Attribute Value
Absolute Maximum AC Current Measurement 3kA ac
Connectivity Bluetooth
Model Number CM55
AC Current Measurement Resolution 10mA
Clamp Meter Type Current Clamp
Best AC Current Accuracy ±(3% rdg + 5dgts)
Jaw Capacity Busbars 60mm
Functions Measured AC Current
Safety Category Level CAT III, CAT IV
Safety Category CAT III 1000 V, CAT IV 600 V
Safety Category Voltage 600 V, 1000 V
Maximum Conductor Size 60mm
Power Source Battery
True RMS Yes
Battery Type AAA
Display Type LED
1 In stock for delivery within 1 working day(s)
Price (ex. GST) Each
$ 322.87
(exc. GST)
$ 371.30
(inc. GST)
Per unit
1 +
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