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OVERVIEW
Split-Core Current Transformer Standard and Revenue Grade Accuracy models
Excellent LinearityLow Phase Angle ErrorUL 2808 (XOBA) ListedAll CTs Are Not the Same!Square 0.75 in. Window Opening 5A to 250 A
The patented Accu-CT split-core current transformer technology delivers exceptional linearity and low-end accuracy. Developed specifically for solar inverter, variable speed motor drive, and other applications where there are large variations in current. The 100:1 turndown ratio of Accu-CTs is ten times better than industry standard CTs. The unique one-handed opening and closing mechanism makes installation a snap.
ACTL series CTs are available in both standard and revenue-grade accuracy models. Revenue grade models ship with a serialized certificate of calibration.
- Safe: built-in burden resistor provides 0.333 Vac voltage output at the rated full-scale current—no shorting blocks needed!
- UL 2808 Listed meets 2017 NEC code requirements for field installed current transformers
- IEEE C57.13 and IEC 60044-1 accuracy: over the full temperature range and down to below 1% of rated current
- Exceptionally low phase angle error: essential for accurate power and energy measurements
- Glove-friendly: easy to open and install with one hand while wearing safety gloves
- Approvals: CE mark and RoHS compliant
Models
Standard
Model
Rated Amps
ACTL-0750-005 5 ACTL-0750-020 20 ACTL-0750-050 50 ACTL-0750-100 100 ACTL-0750-150 150 ACTL-0750-200 200 ACTL-0750-250 250 Non-Stock Models
ACTL-0750-015 15 ACTL-0750-030 30 ACTL-0750-070 70 - List prices for quantity 1 to 30 pieces. Call for pricing on larger quantities.
- Option C0.6
- Max Amps is the recommended maximum continuous current. See ACT-0750 Maximum Amps for details.
- Graphs show typical performance at 23°C, 60 Hz
- Graph shows a positive phase angle when the output leads the primary current.
Options
Opt C0.6
With Option C0.6, the Accu-CT meets IEEE/ANSI C57.13-2008 class 0.6 accuracy and IEC 60044-1 class 0.5 and class 0.5 S accuracy from -30°C to 55°C and from 1% to 120% of rated primary current (see CT Accuracy Standards).
- Note: the ACT-0750-250 Opt C0.6 accuracy is only specified to 100% of full-scale primary current (other models are specified to 120%).
- Accuracy improves to ±0.5% from 1% to 120% of rated primary current from -30°C to 55°C.
- Phase angle improves to ±0.5 degrees from 1% to 120% of rated primary current from -30°C to 55°C.
- Includes a certificate of calibration
- Order option C0.6,N if you need the C0.6 accuracy, but do not need a certificate of calibration.
- Not available for 5, 15, and 20 amp Accu-CT models.
Opt 50 Hz
Standard models are calibrated for optimum accuracy at 60 Hz. Option 50 Hz calibrates for best accuracy at 50 Hz. Option 50 Hz models have the same accuracy specifications as standard models and are also available in combination with Option C0.6 (selected rated amps) for higher accuracy.
Note: All models in Australia are supplied with the 50Hz Option
Opt FT
The Accu-CT can be ordered with custom lead lengths. For example, Opt FT=50 for 50 foot leads. We also sell extra lead wire to allow for field extension of the leads. Option FT does not affect the accuracy specifications.
Advanced Options
The Accu-CT advanced options are generally not useful when ordering the Accu-CT for use with a WattNode® meter, but may be useful for other applications.
See Also
Safety Note
Warning: Hazardous Voltages – Only qualified personnel or licensed electricians should install the WattNode meter and current transformers.
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SPECIFICATIONS
Accuracy
The accuracy specifications apply over the full operating temperature range (-30°C to 55°C) unless otherwise noted. Standard models are calibrated for optimum accuracy at 60 Hz. For use with 50 Hz services, we recommend ordering with Option 50Hz.
The following accuracy specifications apply to the standard model (no options) or for Option C0.6; the specifications may vary for other options, so see the details on individual options for specifications.
Standard Accuracy
- Accuracy: ±0.75% from 1% to 120% of rated primary current
- Phase angle: ±0.50 degrees (30 minutes) from 1% to 120% of rated current
- IEEE C57.13 accuracy: class 1.2 from 1% to 120% of rated current
- IEC 60044-1 accuracy: class 1.0 from 1% to 120% of rated current
- Note: The ACT-0750-250 specifications apply at 120% of rated current only at temperatures of 40°C and below.
Option C0.6 Accuracy
With Option C0.6, the Accu-CT is calibrated and verified to meet IEEE/ANSI C57.13-2008 class 0.6 accuracy and IEC 60044-1 class 0.5 S accuracy and each CT is shipped with a certificate of calibration.
- Accuracy: ±0.50% from 1% to 120% of rated primary current
- Phase angle: ±0.25 degrees (15 minutes) from 1% to 120% of rated current
- IEEE C57.13 accuracy: class 0.6 from 1% to 120% of rated current
- IEC 60044-1 accuracy: class 0.5 and 0.5 S from 1% to 120% of rated current
- Available Models: Option C0.6 is only available for ACT-0750-030, ACT-0750-050, ACT-0750-070, ACT-0750-100, ACT-0750-150, ACT-0750-200, and ACT-0750-250
- Note: The ACT-0750-250 Opt C0.6 specifications apply at 120% of rated current only at temperatures of 40°C and below.
Electrical
- Primary rating: 5 to 250 amps nominal, 600 Vac, 60 Hz nominal
- Maximum continuous primary current: varies with model and options
- Maximum primary conductor gauge: 4/0, 250 kcmil (see Wire Gauges)
- Note, the largest sizes may not fit in all cases, depending on insulation thickness.
- Output: 333.33 mVac or 1.00 Vac (with Option 1V)
- Output lead wires:
- Standard length: 8 ft (2.4 m)
- Gauge: #22 AWG
- Type: MTW, UL 1015
- Voltage: 600 Vac
- Style: Two conductor: white and black, twisted
Mechanical
- Width: 2.38 inches (60.4 mm)
- Height: 2.40 inches (61.0 mm)
- Thickness: 0.90 inches (22.9 mm)
- Window: 0.78 inches (20.0 mm)
- Weight: 6.1 oz (172 grams)
- Material: PC/ABS
Miscellaneous
- Operating temperature: -30°C to 55°C
- UL recognized: file number E325972 (XODW2), standard IEEE/ANSI C57.13
- cUL recognized (Canada): file number E325972 (XODW8), standard CAN/CSA 60044-1
- CE mark: IEC 60044-1; Declaration of Conformity
- RoHS
- Assembled in USA, qualified under the Buy American provision in the American Recovery and Reinvestment Act of 2009 (ARRA).
- Label barcode: QR Code, “Model ; SerialNum”
CCS ACTL Series Split-Core Current Transformers – Accu-CT up to 250A
$0.00 ex GST
The Accu-CT revenue grade, split-core current transformer offers outstanding linearity and phase angle accuracy with a unique one-handed opening and closing mechanism.
