Clamp Meters

A clamp meter is an electrical test tool that combines a basic digital multimeter with a current sensor. Clamps measure current such as AC current, AC and DC voltage, resistance, continuity, and, with some models, DC current, capacitance, temperature, frequency and more. Due to the hinged jaw, this tool allows the user to clamp the jaws around a wire, cable or other conductor at any point in an electrical system, then measure the current without disconnecting it. True RMS measurements, this tester typically measures to the nearest 10th of a unit making them perfect for electrical work such as repairing, installation and maintenance.

Originally created as a single-purpose test tool, modern clampmeters offer more measurement functions, greater accuracy and sometimes specialised measurement features. Todays clamp meters include most of the basic functions of a digital multimeter, such as the ability to measure voltage, continuity and resistance.

Who uses them?

    Industrial maintenance technicians
    Control technicians
    Electricians – in-house and contractors
    Facilities, building maintenance and HVAC technicians
    Service organisations

What are they used on?

    Industrial equipment
    Industrial controls
    Electrical systems
    Commercial/industrial HVAC

Why are Clamp meters so popular?

    Safety: Clamp meters allow electricians to bypass the old-school method of cutting into a wire and inserting a meters test leads into the circuit to take an inline current measurement. The jaws of a clamp meter do not need to touch a conductor during a measurement.
    Convenience: During measurement, it is not necessary to shut off the circuit carrying current—a large boost in efficiency.

They are primarily used for:

    Service: Repair existing systems on an as-needed basis.
    Installation: Troubleshooting installation problems, perform final circuit tests, and supervise apprentice electricians while installing electrical equipment.
    Maintenance: Perform scheduled and preventative maintenance and system troubleshooting.

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Description Price Absolute Maximum AC Current Measurement Absolute Maximum DC Current Measurement Absolute Maximum AC Voltage Measurement Absolute Maximum DC Voltage Measurement Absolute Maximum Resistance Measurement Connectivity Model Number Calibrated AC Current Measurement Resolution DC Current Measurement Resolution Best DC Current Accuracy Clamp Meter Type Best AC Current Accuracy Best AC Voltage Accuracy
RS Stock No. 873-2853
Mfr. Part No.AMP-330-EUR
£259.00
Each
Units
1kA ac 1000A dc 1000V ac 1000V dc 60kΩ - AMP 330 UKAS - - ±1.8 % + 5LSD Current, Voltage ±2.2 % + 5LSD ±10 % + 5LSD
RS Stock No. 873-2859
Mfr. Part No.AMP-330-EUR
£239.00
Each
Units
1kA ac 1000A dc 1000V ac 1000V dc 60kΩ - AMP 330 RSCAL - - ±1.8 % + 5LSD Current, Voltage ±2.2 % + 5LSD ±10 % + 5LSD
RS Stock No. 873-9737
Mfr. Part No.AMP-330-EUR
£190.00
Each
Units
1kA ac 1kA dc 1000V ac 1000V dc 60kΩ - AMP 330 - - - ±(1.8% rdg + 5dgts) Multifunction Clamp ±(1.8% rdg + 5dgts) ±(0.8% rdg + 5dgts)
RS Stock No. 794-3226
Mfr. Part No.CHB15-D
£268.00
Each
Units
200A ac 200A dc 400V ac 400V dc 400Ω - CHB15-D - - - ±(2% rdg + 2dgts) Multifunction Clamp ±(2% rdg + 4dgts) ±(2% rdg + 2dgts)
RS Stock No. 911-9970
Mfr. Part No.CHB15-D
£317.00
Each
Units
200A ac 200A dc 400V ac 400V dc 400Ω - CHB15-D RSCAL 10mA ac 10mA dc ±3% + 2 Digits Crest Factor ±2% + 4 Digits ±2% + 2 Digits
RS Stock No. 911-9989
Mfr. Part No.CHB15-D
£337.00
Each
Units
200A ac 200A dc 400V ac 400V dc 400Ω - CHB15-D UKAS 10mA ac 10mA dc ±3% + 2 Digits Crest Factor ±2% + 4 Digits ±2% + 2 Digits
RS Stock No. 873-2834
Mfr. Part No.AMP-320-EUR
£215.00
Each
Units
600A ac 600A dc 600V ac 600V dc 60kΩ - AMP 320 RSCAL - - ±2 % + 5LSD Current, Voltage ±2 % + 5LSD ±1 % + 5LSD
RS Stock No. 873-2837
Mfr. Part No.AMP-320-EUR
£235.00
Each
Units
600A ac 600A dc 600V ac 600V dc 60kΩ - AMP 320 UKAS - - ±2 % + 5LSD Current, Voltage ±2 % + 5LSD ±1 % + 5LSD
RS Stock No. 873-9734
Mfr. Part No.AMP-320-EUR
£166.00
Each
Units
600A ac 600A dc 600V ac 600V dc 60kΩ - AMP 320 - - - ±(2% rdg + 5dgts) Multifunction Clamp ±(1.8% rdg + 5dgts) ±(1% rdg + 5dgts)
RS Stock No. 873-2764
Mfr. Part No.AMP-210-EUR
£172.00
Each
Units
600A ac - 600V ac 600V dc 60kΩ - AMP 210 UKAS - - - Current, Voltage ±2 % + 5LSD ±1 % + 5LSD
RS Stock No. 873-2761
Mfr. Part No.AMP-210-EUR
£152.00
Each
Units
600A ac - 600V ac 600V dc 60kΩ - AMP 210 RSCAL - - - Current, Voltage ±2 % + 5LSD ±1 % + 5LSD
RS Stock No. 873-9728
Mfr. Part No.AMP-210-EUR
£103.00
Each
Units
600A ac - 600V ac 600V dc 60kΩ - AMP 210 - - - - Multifunction Clamp ±(1.8% rdg + 5dgts) ±(1% rdg + 5dgts)
RS Stock No. 912-0052
Mfr. Part No.CHB5
£568.00
Each
Units
50A ac - 600V ac - - - CHB5 UKAS 10µA ac - - Crest Factor ±1.5% + 5 Digits ±1.5% + 5 Digits
RS Stock No. 912-0043
Mfr. Part No.CHB5
£548.00
Each
Units
50A ac - 600V ac - - - CHB5 RSCAL 10µA ac - - Crest Factor ±1.5% + 5 Digits ±1.5% + 5 Digits
RS Stock No. 794-3257
Mfr. Part No.CHB5
£499.00
Each
Units
50A ac - 600V ac - - - CHB5 - - - - Leakage Current Clamp ±(1.5% rdg + 5dgts) ±(0.5% rdg + 5dgts)
RS Stock No. 873-2780
Mfr. Part No.AMP-220-EUR
£204.00
Each
Units
600A ac 600A dc 600V ac 600V dc 60kΩ - AMP 220 UKAS - - ±2 % + 5LSD Current, Voltage ±2 % + 5LSD ±1 % + 5LSD
RS Stock No. 873-2786
Mfr. Part No.AMP-220-EUR
£184.00
Each
Units
600A ac 600A dc 600V ac 600V dc 60kΩ - AMP 220 RSCAL - - ±2 % + 5LSD Current, Voltage ±2 % + 5LSD ±1 % + 5LSD
RS Stock No. 873-9721
Mfr. Part No.AMP-220-EUR
£135.00
Each
Units
600A ac 600A dc 600V ac 600V dc 60kΩ - AMP 220 - - - ±(2% rdg + 5dgts) Multifunction Clamp ±(1.8% rdg + 5dgts) ±(1% rdg + 5dgts)
RS Stock No. 873-2803
Mfr. Part No.AMP-310-EUR
£193.00
Each
Units
600A ac - 600V ac 600V dc 60kΩ - AMP 310 RSCAL - - - Current, Voltage ±2 % + 5LSD ±1 % + 5LSD
RS Stock No. 873-2812
Mfr. Part No.AMP-310-EUR
£213.00
Each
Units
600A ac - 600V ac 600V dc 60kΩ - AMP 310 UKAS - - - Current, Voltage ±2 % + 5LSD ±1 % + 5LSD