# Hioki CT7116 AC Leakage Current Sensor # Hioki CT7116 AC Leakage Current Sensor ## Key Features At A Glance - Rated measured current of 6 A AC with a 100 mV AC/A output rate - Hioki PL14 output connector for automatic sensor recognition on compatible instruments - Frequency range of 40 Hz to 5 kHz for AC load and leakage current measurement - Clamps insulated conductors up to φ40 mm in diameter - Amplitude accuracy ±1.0% rdg ±0.05% f.s. (45 Hz to 66 Hz) - Maximum measured current 10 A RMS continuous / 30 A peak within the frequency derating curve - High-permeability jaws and magnetic shield for accurate low-level current measurement - IP40 rated (EN60529); operating temperature range −25°C to 65°C A clamp-on AC current sensor measures current flowing through a conductor without breaking the circuit, clamping its jaw around the wire to sense the magnetic field the current produces. The Hioki CT7116 is an AC Leakage Current Sensor built for this purpose, supporting AC current measurement with a rated current of 6 A. It uses high-permeability material for its jaws and magnetic shield, enabling it to measure subtle currents with high accuracy. The sensor terminates in a Hioki PL14 output connector, allowing a compatible instrument to automatically recognize it for simple setup. The CT7116 supports load current measurement, leakage current measurement, and checking for insulation faults. For leakage measurement it can be clamped around a single conductor, around conductors in a bundle, or around the ground (PE) conductor, and it accommodates single-phase two-wire, single-phase three-wire, three-phase three-wire, and three-phase four-wire systems. By measuring the leakage currents flowing through each conductor in a circuit, it helps determine whether an earth leakage is present based on the variation in those currents, and the bundle measurement can be moved from the source toward the load in steps to localize an insulation fault. ValueTronics stocks and holds its own inventory in a 20,000-square-foot secure warehouse at 1675 Cambridge Drive in Elgin, Illinois. ## Accessories Supplied - Instruction Manual - Current Sensor Operating Precautions ## Product Core & Specifications Specification Value General Specifications Operating environment Indoors, Pollution Degree 2, altitude up to 2000 m (6562 ft.) Operating temperature and humidity Temperature: −25°C to 65°C (−13°F to 149°F); Humidity: 80% RH or less (no condensation) Storage temperature and humidity Temperature: −25°C to 65°C (−13°F to 149°F); Humidity: 80% RH or less (no condensation) Standards Safety: EN61010; EMC: EN61326 Dust-proofness, water-proofness IP40 (EN60529) (with sensor connected and jaw closed) Power consumption category Sensor power consumption category: 0 Dimensions Approx. 74W × 145H × 42D mm (2.91″W × 5.71″H × 1.65″D) (excluding protrusions) Mass Approx. 340 g (12.0 oz.) Cable length Approx. 2500 mm (98.43″) Product warranty period 1 year Accessories Instruction Manual, Current Sensor Operating Precautions Output / Measurement Specifications — Basic Specifications Output connector Hioki PL14 Rated measured current 6 A AC Output rate 100 mV AC/A Maximum measured current RMS value, continuous input: 10 A (within the frequency derating curve); However, 30 kA/Hz at a frequency of 1 kHz or higher; Peak value (under the RMS value conditions described above): 30 A peak Frequency range 40 Hz to 5 kHz Measurable conductor diameter φ40 mm or less (insulated conductor) Accuracy Specifications Conditions of guaranteed accuracy Guaranteed accuracy period: 1 year; Guaranteed accuracy period from adjustment made by Hioki: 1 year; Opening and closing of the jaw: 10 000 times or less; Accuracy guarantee for temperature and humidity: 23°C±5°C (73.4°F±9°F), 80% RH or less. Sine wave input; Equal to or less than the rated current but within the derating curve; Conductors passing through the center of the jaw; Not including any effects Amplitude accuracy ±1.0% rdg. ±0.05% f.s. (45 Hz to 66 Hz); ±3.0% rdg. ±0.1% f.s. (other than the frequency range between 45 Hz and 66 Hz but within the frequency range) Phase accuracy ±3° or less: 45 Hz to 66 Hz (with a measured current of 1 A or more input) Temperature coefficient Add {0.05 × (accuracy spec.)/°C} when operated within the operating temperature range (other than 23°C±5°C) Effect of conductor position (deviation from center) ±0.1% or less Effect of external magnetic field (400 A/m, 50 Hz / 60 Hz) Corresponding to 5 mA, 7.5 mA at a maximum Residual current characteristics 5 mA or less (for a pair of electric conductors carrying a current of 100 A each flowing in opposite direction of each other) Maximum extendable length 10 m (However, depending on instrument to which device is connected) > **Important:** Maximum measured current: 10 A RMS continuous (within the frequency derating curve) and 30 A peak; rated measured current 6 A AC. > **Important:** This current sensor has a Hioki PL14 output connector and must be connected to a compatible Hioki instrument to operate; the sensor is automatically recognized when connected. > **Important:** Load Current Measurement: Attach the clamp around only one conductor. If you clamp single-phase (2-wire) or three-phase (3-wire) conductors together, the device will not be able to make a measurement. > **Important:** If a strong current (on the order of 100 A) is flowing through an adjacent circuit, accurate measurement may not be possible. Perform the measurement at a sufficient distance from other current-carrying conductors. > **Important:** A current with special waveform such as one flowing through the secondary side of an inverter may not be measured correctly. > **Important:** To extend the cable, use of only the optional Model L0220 series is allowed; the cable is extendable by up to 10 m. If two or more extension cables are connected in series or the cable is extended by more than 10 m, the device can operate but no performances are guaranteed. > Recommended pairing: extend reach with the optional L0220-series Extension Cables — L0220-01 (2 m), L0220-02 (5 m), or L0220-03 (10 m) — for up to 10 m of total length. ## 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:** 351.0 USD - **Vendor:** Hioki - **Type:** Curr Probe - **Tags:** Current Clamp, Hioki, Manufacturers, Other Equipment, product_manual_group_3, Product_new ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 351.00 USD | In stock | ## Images - Hioki CT7116 AC Leakage Current Sensor --- > Source: [ValueTronics](https://valuetronics.com/products/ct7116-hioki-current-clamp-new) > Updated: 2026-06-20