All Categories
    Menu Close

    Clamp on Current Transformer, 20A AC

    clamp on current transformer range 0.00mA~20A AC, ratio: 800:1, resolution: 0.01mA, accuracy class: 0.5, output interface optional BNC plug, 4.0mm double banana plug, and 3.5mm audio plug. The portable clamp-on current transformer allows safe and fast connection to phase detection analyzers, industrial control devices, and high-precision digital multi-meters without disconnecting the line under test.
    i h
    🚚 Free shipping
    🔙 30-day returns
    📅 Delivery: 7-12 days

    The small clip-on current transformer adopts CT temperature double shielding technology, with high stability and reliability, and can output current  signal or voltage signal. clamp on the current transformer's range, output signal, and output interface can be customized according to user requirements.

    20A AC clamp current transformer

    Clamp-on current transformer makes field testing easy

    • Non-contact measurement, easy, fast, and safe operation.
    • Thin jaws, suitable for small spaces.
    • The sisco clamp current transformer uses a permalloy core for stable performance and high accuracy, and is highly resistant to interference, making it suitable for complex interference environments.
    • The fire wire and zero wire can be clamped together at the same time to measure the leakage current of cable lines and electrical equipment.
    • The range, ratio, and output interface of the sensor can be customized according to customer requirements.
    • Output connector: φ3.5mm audio plug/BNC plug/4.0mm double banana plug (optional), cable length 2m.


    High-precision clip-on current transformers is an indispensable accessories for small, medium, and large electronic companies. The sisco clamp-on current transformer is suitable for use in power equipment testing, communications and telecommunications, railway and oilfield monitoring, building and construction companies, research and teaching units, industrial and mining records, and other fields.  

    Clamp-on current transformer applications

    Model SISCO-ETCR016
    Range 0.00mA~ 20A AC
    Resolution 0.01mA
    Accuracy Grade 0.5
    Phase Error ≤2
    Variable Ratio 800:1
    Reference Load ≤120Ω
    Jaw Size φ16mm
    Mass 138g
    Output Interface BNC plug/4.0mm double banana plug/3.5mm audio plug/bare wire tap (optional), wire length 1.5m
    Operating Frequency 45Hz ~ 100kHz
    CT Structure Clamp
    Dielectric Strength AC 3700V/rms (between core and shell)
    Safety Level CATI600V
    Output Mode Induction Current Output
    Operating Temperature and Humidity -15°C ~ 50°C ; 80%rh or less

    Dimension Unit (mm)

    20A AC clamp current transformer dimension

    Output interface (optional)

    Clamp current transformer output interface


    Q1: What is a clamp-on current transformer?
    A1: Clamp-type current transformer is a kind of detection device, that can feel the information of the measured current, and can detect the felt information. Clamp AC transformers according to a certain law into a certain standard need to meet the electrical signal or other required forms of information output, in order to meet the requirements of information transmission, processing, storage, display, recording, and control. For example, switching power supply, hard switch, soft switch, etc.

    Q2: What equipment can be used with a clamp-on current transformer?
    A2: Clamp-on current transformers can be used with multimeters (mA level current grade), oscilloscopes, and other instruments, and clamp-on AC transformers can also be used as current probes.

    Q3: What are the advantages of sisco clamp-on current transformer?
    A3: sisco clamp-on current transformer is a precision current transformer, which is specially designed for power field measurement and metering use characteristics. The clamp-on current transformer is made of high permeability material, high precision, strong anti-interference ability, etc. When using the clamp-on current transformer can be directly clamped on the bus bar or bus bar without cutting off the line power outage its use is very convenient.

    Tips: Can the sisco clamp current transformer be used together with my digital multimeter?

    Yes, sisco clamp current transformer can be used not only with a digital multimeter but also with various measuring instruments, such as: power meter field calibrator, multi-function power meter, recorder, electric analyzer, oscilloscope, cable identification instrument, cable fault detector, double clamp ground resistance tester, double clamp phase voltammeter, etc., to measure and compare various electrical parameters without disconnecting the circuit under test. parameters are measured and compared.


    Thank you for buying industrial test and measurement equipment on, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.

    What is covered?

    SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.

    What is not covered?

    • Product purchased from anyone other than a SISCO store or a SISCO authorized reseller.
    • Expendable parts.
    • Routine cleaning or normal cosmetic and mechanical wear.
    • Damage from misuse, abuse or neglect.
    • Damage from use of parts other than SISCO approved.
    • Damage from use outside the product’s usage or storage parameters.
    • Damage from use of parts not sold by SISCO.
    • Damage from modification or incorporation into other products.
    • Damage from repair or replacement of warranted parts by a service provider other than a SISCO authorized service provider.
    • Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.
    0.0 0
    Write your own review Close