ACUCT-Hinged-Split-Core

Current Transformers

Easy split-core installation: ACUCT Split Core Current Transformers install around existing branch circuit conductors without disconnecting cables, reducing panel downtime.
Designed for power metering: Converts AC operating current into a 333 mV signal for use with ACI single-phase and three-phase power meters.
Multiple current ranges: Available in 50A, 100A, 200A, 300A, 400A, 600A, 800A, and 1000A models to match a wide variety of electrical monitoring applications.
High measurement accuracy: Provides 0.5% accuracy from 10% to 120% of rated current, supporting dependable energy and demand metering.
Built for branch circuit monitoring: Compact, lightweight designs with 0.75", 1.25", and 2.00" window sizes make it easier to fit conductors inside electrical panels.
Ideal for efficiency projects: Well suited for energy metering, demand metering, load surveys, LEED/green projects, and ROI or project-justification studies.
Durable electrical construction: Epoxy-encapsulated UL94V-0 case, 600 VAC Category III rating, and 3,000 VAC withstand voltage support demanding panel environments.
Installer-friendly wiring: Stripped and tinned 22 AWG lead wires with polarity identification simplify connection to compatible ACI power meters.
Certified and supported: UL Recognized, CE, and RoHS2 compliant, with ACI’s five-year limited warranty for long-term confidence.

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Data Sheet

Product Overview

Accuracy ± 0.5 %
Accuracy Detail 0.5% from 10-120% of Rated Current
Altitude,Max 3000 m
Approvals ULR, CE, & RoHS2 Compliant
Case Material Black Nylon/UL94V-0
Electrical Connection Stripped Leads
Enclosure Material Black Nylon
Frequency Input Range 50/60 Hz
Measurement Type AC Current
Output Detail Rated Output: 333mV @ 20/30/40/50/60/100/200 Amps (see ordering grid)
Power Consumption 5 W
Series ID ACUCT-Hinged-Split-Core
Wire Gauge 22 AWG
Working Voltage CAT III 600 VAC

Supported Applications

The ACI AcuCT Revenue Grade Split-Core, High Accuracy Current Transformers are designed to convert an AC operating current into a low voltage AC millivolt signal for use with microprocessor-based circuits requiring maximum accuracy and precision. These compact units are intended for installation on branch circuits within electrical panels.

Models in this series are compatible with specific Single or 3 Phase ACI power meters, including the KW350-P1-D-S-SC, KW320-P1-D-W-SC-XX, KW320-P1-D-W-SC-PC, KW1850-P1-D-W, and KW1850-P1-D-S Power Meters where typical power measurements are required.

Operating Conditions & Performance

The series monitors AC Current with a rated output of 333 mV at specified amperage levels ranging from 50A to 4000A. The core style is Hinged Split-Core, featuring a sturdy latch that locks the split-core CT in place using a press-open mechanism for quick installations without disconnecting cables.

Performance specifications include:

Accuracy Class: 0.5s Class IEC 60044-1
Maximum Working Voltage: 600 VAC, Category III
Withstand Voltage: 5,000VAC
Operating Frequency Range: 50/60 Hz
Operating Temperature Range: 5 to 149°F (-15 to 60°C)
Storage Temperature Range: -40 to 185°F (-40 to 85°C)
Humidity Rating: 5 to 95%, non-condensing
Maximum Elevation: 9,842 ft (3 Kilometers)

Configuration Options

The series supports a range of window sizes and rated currents to accommodate different conductor dimensions. Selection is based on the size of conductors being monitored by referencing the expected maximum and minimum operating currents.

Rated Currents: 50A, 100A, 150A, 200A, 250A, 300A, 400A, 600A, 800A, 1000A, 2000A, and 4000A.
Window Sizes: Available from 0.75" (19.05 mm) up to rectangular openings such as 5.1" (129.54mm) X 7.0" (177.80mm).
Housing Material: Square Pressed with a UL 94V-0 flammability rating.
Electrical Connections: Stripped and Tinned Lead Wires, White = Positive (+), Black = Negative (-).
Wire Specifications: 22 AWG (0.32 mm²), UL 1015 with a standard lead length of 8 ft (2.5m).

The series carries the following agency approvals: UL2808, 61010-1, CSA 22.2, cULus LISTED, CE, and RoHS COMPLIANT.

Key Product Differences

Variants within this series are distinguished by their base model number (e.g., AcuCT-075R through AcuCT-5170R), which corresponds to specific physical dimensions and window sizes. The ordering code follows the format: AcuCT-<BASE_MODEL>-<RATED_CURRENT>-333.

Differences in overall size are significant across models: