QACT series: Split - Core Current Transformers - hqsensing QACT series: Split - Core Current Transformers - hqsensing

Split-core CT

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Revenue-Grade Split Core CTs
– UL2808, 225mV·333mV·1V·100mA·1A·5A

1. Description
UL 2808–certified revenue-grade split core current transformer (split-core CT) for fast, tool-friendly retrofit on primary conductors. Offers 225 mV/333 mV/1 V and 100 mA/1 A/5 A outputs, with built-in safety features for energy monitoring and billing.

2. Key Features

  • UL 2808 certified revenue-grade split core CT for field-installed metering and submetering
  • Split-core (clamp-on) design: mounts quickly on primary conductors without cutting or disconnecting wiring—ideal for retrofits
  • No shorting block required thanks to output-type safety design
  • Voltage outputs (225 mV / 333 mV / 1 V): low-voltage options matched to meter inputs (333 mV includes built-in burden resistor)
  • Current outputs (1 A / 5 A): built-in overvoltage protection enables safe operation without a shorting block
  • One-hand installation even with gloves for improved onsite safety and productivity
  • Ultra-low phase angle error essential for accurate power and energy measurement

3. Accuracy & Standards Positioning

  • IEC 61869-2 accuracy class: 0.2S / 0.5S
  • IEEE C57.13 accuracy class: 0.15 / 0.3 / 0.3S

4. Output Options

Item Options
Voltage Output 225 mV, 333 mV (0.333 Vac), 1 V
Current Output 100 mA, 1 A, 5 A
Selection Guidance Choose by meter input type (voltage/current) and required accuracy

5. Series

Model
(Series)		 Available Outputs
JPS 333 mV, 100 mA
QACT 333 mV, 100 mA
JSC 225 mV, 333 mV, 1 V, 100 mA, 1 A, 5 A (configurable options)

High-Precision PQ Split Core CTs
– IEC 61557-12(PMD), PMD-III Advanced Power Monitoring

1. Description
High-precision power quality split-core CTs are designed for IEC 61557-12 (PMD)–based PMD-III advanced power monitoring and network performance analysis. Including revenue-grade split-core CTs (JPS/QACT/JSC), they support harmonic and load-variation monitoring with IEC 61869-2 0.2S/0.5S and IEEE C57.13 0.15/0.3/0.3S options.

2. Key Features

  • Power quality (PQ) CT lineup for IEC 61557-12 (PMD): ideal for PMD-III advanced power monitoring and network performance assessment
  • Standards-based accuracy class options
    - IEC 61869-2: 0.2S / 0.5S
    - IEEE C57.13: 0.15 / 0.3 / 0.3S
  • PQ lineup including revenue-grade split-core CTs (JPS / QACT / JSC): expands PQ measurement coverage while maintaining field-install convenience and meter compatibility
  • High-permeability PC80 permalloy core: improved waveform fidelity in distortion, harmonics, and high-frequency conditions
  • Supports inverter environments up to 20 kHz: optimized for variable frequency drives (VFDs), inverters, and high-switching power electronics
  • Split-core design minimizes downtime: clamp-on installation without cutting cables reduces installation time and onsite risk

3. Accuracy & Standards

Standard Supported Accuracy Classes Scope / Positioning
IEC 61557-12 (PMD) PMD-III context Designed for PMD-III advanced power monitoring and network performance measurement applications
IEC 61869-2 0.2S / 0.5S Compliance-ready for high-accuracy current transformer (CT) measurement in power monitoring systems
IEEE C57.13 0.15 / 0.3 / 0.3S Supports industry-standard CT accuracy classes for precise energy and power quality measurement

4. Series

Model
(Series)		 Overview Typical Applications
JPS / QACT / JSC / JM21 Power quality split-core CT lineup built on revenue-grade split-core CT platforms, including configurations for power quality measurement PMD-III monitoring, harmonic analysis, load variation tracking, inverter/VFD environments up to 20 kHz

General Metering Split Core CTs
– PMD-I / PMD-II, IEC 61557-12

1. Description
General-purpose split-core CTs are ideal for IEC 61557-12 PMD-I (energy efficiency) and PMD-II (basic power monitoring) applications. Optimized for power meters and multi-channel meters to monitor primary conductors and branch circuits, with 5 A/1 A/100 mA/333 mV/1 V outputs for fast, cost-effective energy monitoring.

2. Key Benefits

  • Split-core CT design enables fast clamp-on installation without cutting cables, minimizing retrofit downtime
  • Ideal for branch circuit monitoring, allowing per-circuit load tracking with power meters and multi-channel meters
  • Built for IEC 61557-12 (PMD) environments, optimized for PMD-I (energy efficiency) and PMD-II (basic power monitoring) energy monitoring
  • Wide range of standard secondary outputs (5 A / 1 A / 100 mA / 333 mV / 1 V) for broad meter compatibility and easy system integration

3. Applications

  • PMD-I: Energy efficiency monitoring (IEC 61557-12 PMD)
  • PMD-II: Basic power monitoring for facility energy visibility
  • Seamless integration with power meters and multi-channel meters (meter input compatible)
  • Ideal for branch circuit and equipment load monitoring, optimized for retrofit (clamp-on) installation

4. Accuracy Classes

  • IEC 61869-2 accuracy classes: 0.5 / 1 / 3.0
  • IEEE C57.13 accuracy classes: 0.6 / 1.2

5. Output Options

Output Type Options -
Current Output 5 A / 1 A / 100 mA Standard secondary current outputs for broad meter compatibility
Voltage Output 333 mV (0.333 Vac) / 1 V Low-voltage outputs commonly used in energy monitoring and submetering
Selection Guidance Select by meter input type (current/voltage) and installation conditions Improves compatibility for IEC 61557-12 PMD energy monitoring systems

6. Series

Model
(Series)		 Positioning
JC General-purpose split-core current transformer (CT) for PMD-I/PMD-II monitoring
JS Clamp-on CT series for power meter / multi-channel meter integration
JSC Flexible split-core CT lineup supporting multiple outputs and accuracy needs
JM21 Retrofit-friendly split-core CT series for branch circuit and facility monitoring

(Select the best-fit configuration by combining output options (5 A / 1 A / 100 mA / 333 mV / 1 V) with accuracy classes (IEC 0.5 / 1 / 3.0 or IEEE 0.6 / 1.2) within the lineup.)