# HT Italia HT97U AC Current Transducer Clamp, 10/100/1000 A # HT Italia HT97U AC Current Transducer Clamp, 10/100/1000 A ## Key Features At A Glance - CAT III 600V overvoltage category; pollution degree 2 per IEC 1010-1 - Three selectable AC current ranges: 10A, 100A, and 1000A - 1V AC output with selectable ratios of 100mV/A, 10mV/A, and 1mV/A - Frequency range of 40Hz to 10kHz - Maximum error of 2% of reading - Cable opening diameter of 54mm; accepts 35x35mm or 50x12mm bus bars - Operating temperature range of -10 to +50 deg C - 2m output cable terminated with a Hypertac connector The HT Italia HT97U is an AC current transducer clamp that converts measured alternating current into a proportional 1V AC output signal. It offers three selectable full-scale ranges — 10A, 100A, and 1000A AC — each with its own conversion ratio of 100mV/A, 10mV/A, or 1mV/A respectively. The clamp jaw provides an opening of 54mm diameter for round conductors and accommodates bus bars sized 35x35mm or 50x12mm. A current transducer clamp lets a measurement system sense AC current without breaking the circuit, clamping around a conductor and producing a scaled low-level signal that downstream instrumentation can read. On the HT97U, this scaled output is intended for power measurement work, where the conventional current direction P1 to P2 indicated by the arrow on the rear of the clamp must be observed. ValueTronics stocks and holds its own inventory in a 20,000 square foot secure warehouse at 1675 Cambridge Drive, Elgin, Illinois. ## Product Core & Specifications Specification Value Specifications Selectable ranges 10A / 100A / 1000A AC Measuring range 0,1 ÷ 10A / 0.5A ÷ 100A / 1A ÷ 1000A AC Output signal 1V AC Protection By diodes Ratio 100mV/A – 10mV/A - 1mV/A Accuracy see table Max error 2% (of reading) Internal load 10A=100Ω; 100A=10Ω; 1000A=1Ω External min load 100 times the internal load Power measurement Take care to the conventional direction P1 ⇒ P2 rear of the arrow Frequency range 40Hz to 10kHz Pollution degree 2 according to IEC 1010-1 Dielectric strength 5,5 KV 50 Hz 1 min Temperature range \-10 ÷ +50 °C Overvoltage category CAT III 600V “Opening” cable Diameter 54 mm "Opening" bus bars 35x35mm or 50x12mm Dimensions (mm) 105 x 225 x 31 mm Weight 720 g Output connection Cable 2m with Hypertac connector Accuracy — 10A FS Precision in % rdg of output signal (0.1 ÷ 0.5) ±(2%rdg + 4mV) Precision in % rdg of output signal (0.5 ÷ 2.0) ±(2%rdg + 4mV) Precision in % rdg of output signal (2.0 ÷ 10) ±(0.5%rdg + 4mV) Phase difference (0.1 ÷ 0.5) Not specified Phase difference (0.5 ÷ 2.0) 10 degrees Phase difference (2.0 ÷ 10) 5 degrees Accuracy — 100A FS Precision in % rdg of output signal (0.5 ÷ 1.0) ±(2%rdg + 3mV) Precision in % rdg of output signal (1.0 ÷ 20) ±(1%rdg + 2mV) Precision in % rdg of output signal (20 ÷ 100) ±(1%rdg + 2mV) Phase difference (0.5 ÷ 1.0) 2 degrees Phase difference (1.0 ÷ 20) 1 degree Phase difference (20 ÷ 100) 1 degree Accuracy — 1000A FS Precision in % rdg of output signal (1.0 ÷ 10) ±(1%lettura + 1mV) Precision in % rdg of output signal (10 ÷ 200) ±(1%lettura + 1mV) Precision in % rdg of output signal (200 ÷ 1000) ±(1%lettura + 1mV) Phase difference (1.0 ÷ 10) 1 degree Phase difference (10 ÷ 200) 1 degree Phase difference (200 ÷ 1000) 0.5 degrees > **Important:** For power measurement, observe the conventional current direction P1 to P2 indicated by the arrow on the rear of the clamp. > **Important:** External minimum load must be 100 times the internal load (Internal load: 10A=100Ω; 100A=10Ω; 1000A=1Ω). ## About this New unit This is a brand-new, factory-sealed unit, supplied exactly as it arrives from the manufacturer and backed by the full manufacturer warranty. For the exact configuration, available options, included accessories, or current lead time for your application, our Test Architects can confirm the details before you order. ValueTronics supplies both new and used test and measurement equipment. New units ship factory-sealed, exactly as received from the manufacturer; every used unit is inspected and functionally verified in-house at our 20,000 sq ft secure facility in Elgin, Illinois before it ships. Our Test Architects can help you select the condition, calibration, and configuration that fit your application. **Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.** ## Details - **Price:** 495.0 USD - **Vendor:** HT Italia - **Type:** Curr Probe - **Tags:** Current Clamp, HT Instruments, Manufacturers, Other Equipment, product_manual_group_3, Product_new ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 495.00 USD | In stock | ## Images - HT Italia HT97U AC Current Transducer Clamp, 10/100/1000 A --- > Source: [ValueTronics](https://valuetronics.com/products/ht97u-ht-instruments-current-clamp-new) > Updated: 2026-06-20