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"
