Multimeter Test Leads

Multimeter test leads are considered to be an integral part of electrical measurement, for example connecting your digital multimeter to the unit under test. If the test leads are in poor condition this can lead to inaccurate readings and could result in a health and safety concern if live wires are being read as being de-energised.

A lead kit for measuring high voltage and high energy circuits, such as distribution system voltages (240V- 600V), needs to be in good condition with the proper markings and ratings. You should always take precautionary steps to verify the condition and rating of the leads before testing to ensure safety in the workplace.

There are test lead sets designed to meet the requirements of nearly all applications.

Checks before you start:

  • Confirm that the multimeter and multimeter test leads are rated for the category and voltage level appropriate for the electrical environment they will be used in. Electrical measurement category ratings are defined by the safety standard, IEC61010 and have four ratings, CAT I, CAT II, CAT III and CAT IV.
  • Inspect the leads to make sure they are safe to use and able to conduct electrical signals accurately. This includes checking that the leads are properly insulated with no cracks through the cables and also checking the connectors are clean and debris-free.
  • Complete a visual inspection first then conduct simple ohms measurement to confirm they are electrically reliable and able to carry a signal within allowable loss parameters.

  • ...
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    Description Price Lead Type Product Type Connector Type Fused Lead Length Current Rating Safety Category Voltage Safety Category Minimum Operating Temperature Maximum Operating Temperature Safety Category Level
    RS Stock No. 450-9400
    Mfr. Part No.935982256
    $105.49
    1 Kit
    Kit(s)
    Test Lead Kit - Crocodile Clip - - - - - -25°C +100 °C, +80 °C -
    RS Stock No. 517-4689
    Mfr. Part No.TLK291
    BrandFluke
    $188.00
    Each
    units
    Test Probe Kit - Plug Yes - 500mA 1000V CAT III 1000 V 0°C +40°C CAT III
    RS Stock No. 518-1019
    Mfr. Part No.99.00191
    $116.33
    1 Set
    Set(s)
    Test Lead - Right Angle Plug, Straight Plug - 1m 19A 1000V CAT II 1000 V - - CAT II
    RS Stock No. 122-9727
    Mfr. Part No.66.9008-150-21+66.9008-150-22
    $39.49
    Each
    units
    Test Probe Kit - Straight to Right Angle - 1.5m 20A 1000V CAT II 1000 V - +350°C CAT II
    RS Stock No. 428-152
    Mfr. Part No.FLUKE TL40
    BrandFluke
    $83.30
    Each
    units
    Test Lead - - - 76mm 3A 300V CAT III 300 V - - CAT III
    RS Stock No. 880-1397
    Mfr. Part No.FTPL-1
    BrandFluke
    $192.00
    Each
    units
    Fused Test Probe - - Yes - 10A 1000 V, 600 V CAT III 1000 V, CAT IV 600 V -20°C +50°C CAT III, CAT IV
    RS Stock No. 429-5274
    Mfr. Part No.TLA-1
    $20.41
    1 Set
    Set(s)
    Test Lead - Crocodile Clip - 450mm 1A 100V CAT III 100 V - - CAT III
    RS Stock No. 122-5535
    Mfr. Part No.MP21-10RD
    BrandMartindale
    $20.38
    Each
    units
    - - Crocodile Clip - - - - - - - -
    RS Stock No. 483-5298
    Mfr. Part No.21284
    $85.33
    Each
    units
    Test Lead Kit - 4 mm Crocodile Clip, 4 mm Safety Plug, 4 mm Shrouded Plug, 4 mm Stackable Plug - 1m - 600V CAT II 600V - - CAT II
    RS Stock No. 426-853
    Mfr. Part No.FLUKE TP4
    BrandNEUTRAL
    $36.00
    Each
    units
    Test Probe Kit - - - - 10A 1000 V, 600 V CAT III 1000 V, CAT IV 600 V - - CAT III, CAT IV
    RS Stock No. 254-8150
    Mfr. Part No.DX06001
    BrandCatu
    $84.35
    Each
    units
    Test Probe Kit - Crocodile Clip, Right Angle Plug - 1.2m 20A 1000V CAT III 1000 V - - CAT III
    RS Stock No. 880-1407
    Mfr. Part No.FTP-1
    BrandFluke
    $167.00
    Each
    units
    Fused Test Probe - Lantern Spring Contact, Threaded Probe Tip Yes - 10A 1000 V, 600 V CAT III 1000 V, CAT IV 600 V -20°C +50°C CAT III, CAT IV
    RS Stock No. 896-2195
    Mfr. Part No.P01102125Z
    $29.21
    1 Set
    Set(s)
    Shrouded Plug - - - 4mm - 1000V CAT IV 1000 V -30°C +60°C CAT IV
    RS Stock No. 122-9729
    Mfr. Part No.66.9007-150-21+66.9007-150-22
    $38.97
    Each
    units
    Test Probe Kit - Straight to Right Angle - 1.5m 20A 1000V CAT II 1000 V - +350°C CAT II
    RS Stock No. 424-4686
    Mfr. Part No.SPL2400
    $95.75
    1 Set
    Set(s)
    Test Lead Kit - 2 mm Male, 2.4 mm Male, 4 mm Male - 1m 10 A, 12 A, 32 A 1000V CAT II 1000 V - - CAT II
    RS Stock No. 753-1826
    Mfr. Part No.IBU 5568 / GN
    $2.76
    Each
    units
    - - - - - - - - - - -
    RS Stock No. 433-2597
    Mfr. Part No.SET3227
    $83.67
    Each
    units
    Probe Set - Crocodile Clip - 1m - - - - - -
    RS Stock No. 254-8138
    Mfr. Part No.DX02001
    BrandCatu
    $44.09
    Each (In a Pack of 2)
    units
    Test Probe - - - 1.2m 20A 1000V CAT III 1000 V - - CAT III
    RS Stock No. 605-7349
    Mfr. Part No.TLA-113
    $32.96
    Each
    units
    Test Lead - - - - - - - - - -
    RS Stock No. 827-0187
    Mfr. Part No.KML 7528 / 2ZA / 4x0.22 / 70
    $387.48
    Each
    units
    Shrouded Plug - Stackable Plug with 2 Pincer - 700mm 1A - - - - -
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