Current Clamps

Current clamps, also known as current probes and clamp meters, measure AC and DC current within a set current measurement range, converting it to a voltage that can be measured and viewed. Current clamps are designed to be used with DMM (digital multimeters), data loggers, Oscilloscopes and recorders. In the United States, current clamps are known as Amp Clamps.

RS Components work with major electrical test and measurement equipment manufacturers like Fluke, Chauvin Arnoux, and Tektronix including the RS PRO brand all recognised for their expertise in delivering performance within the current clamps, current probes and meters industry. Our range offers current clamps / current probes with full calibration including RSCAL and UKAS certification.

How does a Current Clamp work?

A current clamp works like a probe except that it clamps around an electrical conductor. It does this using the clamp jaws, which open and close and clamp-on and around the conductor, allowing you to measure AC and or DC current without breaking an electrical circuit with no physical contact (non-contact) to the current. Current clamps can also be used along with Clamp meters and digital multimeters that have no built-in current clamp or current probe. Current clamps can be battery-powered or attached to other power supplies.

What is a Current Probe?

A current probe works in the same way as a current clamp except that is has no jaws. The current probe senses the AC and DC current which is passing through a conductor converting the current to a voltage that provides a measurement. Current probes are often used along with oscilloscopes and other current testers.

Ac and DC Measurement Accessories available.

Our range of accessories for Test and Measurement, AC and DC current measurement, is extensive covering everything from banana plugs, accessory kits, tester lead’s, connection lead’s, meters and adapters to BNC connectors. All our measurement accessories are suitable for connection to digital multimeters, oscilloscopes, oscilloscope current probes, clamp-on amp probes, data loggers and more.

Calibrated Service Types Available.

  • LATCAL.
  • ISOCAL.
  • RSCAL.
  • UKAS.

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Description Price Adapter Type Maximum DC Current Maximum AC Current Best Accuracy Resolution Calibrated Maximum Conductor Size Safety Category Output Type Connector Type Battery Type Battery Life Cable Length Extended Maximum Operating Temperature
RS Stock No. 799-9027
Mfr. Part No.P01105105Z
£66.99
Each
Units
AC - 100A ac ≤ 2 % 1 mA, 1 mV, 1A, 1 mV - 10mm CAT III 600 V, CAT IV 300 V Voltage 4 mm Plug - - 1.5m +50°C
RS Stock No. 394-4997
Mfr. Part No.P01120074A
£429.66
Each
Units
AC/DC 450mA 300mA ac ±1 % 1 mA, 10 mV - 3.9mm CAT II 300 V Voltage 4 mm Plug 9V 20 h 1.5m +55°C
RS Stock No. 911-9504
Mfr. Part No.P01120074A
£479.16
Each
Units
AC/DC 450mA 300mA ac ±1 % 100 (AC) μA, 50 (DC) μA RSCAL 3.9mm CAT II 300 V Current 4 mm 9V 20 h 1.5m +55°C
RS Stock No. 911-9513
Mfr. Part No.P01120074A
£499.66
Each
Units
AC/DC 450mA 300mA ac ±1 % 100 (AC) μA, 50 (DC) μA UKAS 3.9mm CAT II 300 V Current 4 mm 9V 20 h 1.5m +55°C
RS Stock No. 204-5421
Mfr. Part No.P01120040A
£378.84
Each
Units
AC/DC 80A 80A ac ±12 % - - 11.8mm CAT III 600 V, CAT IV 300 V Voltage 4 mm Plug 9V 70 h 1.5m +50°C
RS Stock No. 293-1855
Mfr. Part No.P01120415
£137.83
Each
Units
AC - 240A ac ±2 % - - 20mm CAT III 600 V Voltage 4 mm Plug - - 1.5m +55°C
RS Stock No. 326-5345
Mfr. Part No.P01120415
£187.33
Each
Units
AC - 240A ac ±2 % - RSCAL 20mm CAT III 600 V Voltage BNC - - 1.5m +55°C
RS Stock No. 459-3528
Mfr. Part No.P01120415
£207.83
Each
Units
AC - 240A ac ±2 % - UKAS 20mm CAT III 600 V Voltage BNC - - 1.5m +55°C
RS Stock No. 459-3461
Mfr. Part No.P01120402
£167.79
Each
Units
AC - 240A ac ±1 % - UKAS 20mm CAT III 600 V Current BNC - - 1.5m +55°C
RS Stock No. 799-9005
Mfr. Part No.P01120083
£741.51
Each
Units
AC - 400A ac ≤ 0.35 % - - 115mm CAT III 600 V, CAT IV 300 V Current 4 mm Plug - - 1.5m +55°C
RS Stock No. 799-9039
Mfr. Part No.P01120030A
£358.05
Each
Units
AC/DC 150A 150A ac 3 %, 1.5% ± 30 μV, 2% ± 20 mV - - 11.8 Dia.mm CAT III 600 V, CAT IV 300 V Current, Voltage 4 mm Plug 9V 70 h 1.5m +50°C
RS Stock No. 293-1805
Mfr. Part No.P01120402
£97.79
Each
Units
AC - 240A ac ±1 % - - 20mm CAT III 600 V Current 4 mm Plug - - 1.5m +55°C
RS Stock No. 326-5288
Mfr. Part No.P01120402
£147.29
Each
Units
AC - 240A ac ±1 % - RSCAL 20mm CAT III 600 V Current BNC - - 1.5m +55°C
RS Stock No. 799-8991
Mfr. Part No.P01120314
£287.21
Each
Units
AC - 1200A ac ≤ 0.3 % - - 52mm CAT III 600 V, CAT IV 300 V Current 4 mm Socket - - 1m +50°C
RS Stock No. 253-4448
Mfr. Part No.P01120303
£218.68
Each
Units
AC - 1200A ac ±0.5 % - - 52mm CAT III 600 V, CAT IV 300 V Current 4 mm Plug - - 1.5m +50°C
RS Stock No. 293-1827
Mfr. Part No.P01120406
£108.57
Each
Units
AC - 240A ac ±1 % - - 20mm CAT III 600 V Voltage 4 mm Plug - - 1.5m +55°C
RS Stock No. 459-3483
Mfr. Part No.P01120406
£178.57
Each
Units
AC - 240A ac ±1 % - UKAS 20mm CAT III 600 V Voltage BNC - - 1.5m +55°C
RS Stock No. 799-9064
Mfr. Part No.P01120421
£262.00
Each
Units
AC - 200A ac ≤ 1% - - 20mm CAT III 600 V, CAT IV 300 V Current 4 mm Safety Plug - - 1.5m +55°C
RS Stock No. 326-5301
Mfr. Part No.P01120406
£158.07
Each
Units
AC - 240A ac ±1 % - RSCAL 20mm CAT III 600 V Voltage BNC - - 1.5m +55°C
RS Stock No. 293-1833
Mfr. Part No.P01120408
£171.71
Each
Units
AC - 240A ac ±1 % - - 20mm CAT III 600 V Voltage 4 mm Plug - - 1.5m +55°C