ACTL-1250-400 Split-Core CT for Big Service Conductors
The Accu-CT ACTL-1250-400 Opt C0.6 split-core CT from Continental Control Systems measures AC current up to 400A rated through a large oval window. It outputs 0.333VAC at rated current, the CT signal the Fronius Smart Meter WR is designed to read.
The Opt C0.6 version is calibrated to revenue grade accuracy and ships with a certificate of calibration.
Why You'll Love The ACTL-1250-400 Split-Core CT
Made for large services. The 1.83 x 1.25 in oval window fits around big service entrance conductors.
Revenue grade accuracy. Plus or minus 0.50% from 1% to 120% of rated current, meeting IEEE C57.13 class 0.6.
Plenty of headroom. A 720A maximum continuous current rating means the CT will not overheat on heavy loads.
Service entrance rated. Rated 600VAC CAT IV (pollution degree 2), so it can go where the big conductors are.
Your life, with the ACTL-1250-400 Split-Core CT
Your larger home or small business finally gets metering that matches its service. The CTs snap around the conductors without disconnecting anything, and your monitoring shows consumption you can rely on when planning batteries or more panels.
The ACTL-1250-400 Split-Core CT in a nutshell
400A rated
Rated primary current 400A with a 720A maximum continuous current.
Oval window
1.83 x 1.25 in window opening, designed for loads up to 600A across the ACTL-1250 range.
Calibration certificate
Each Option C0.6 CT ships with a certificate of calibration.
UL 2808 Listed
Meets the 2017 NEC requirement that field-installed CTs be UL 2808 Listed.
ACTL-1250-400 Split-Core CT specifications
Electrical
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Rated current: 400A
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Maximum continuous current: 720A
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Output: 0.33333VAC at rated current
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Overvoltage category: 600VAC CAT IV (pollution degree 2), 250VAC CAT III (pollution degree 3)
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Line frequency: 50 to 60 Hz
Accuracy (Opt C0.6)
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Accuracy: Plus or minus 0.50% from 1% to 120% of rated current
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Phase angle: Plus or minus 0.25 degrees
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IEEE C57.13: Class 0.6
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IEC 60044-1: Class 0.5 S
Environmental and mechanical
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Window: 1.83 x 1.25 in, oval
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Leads: 8 ft (2.4 m), 20 AWG
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Operating temperature: -22 to 167°F (-30 to +75°C)
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Altitude: Up to 9,840 ft (3000 m)
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Humidity: 5 to 95% RH
Approvals
- UL Listed, UL 2808 (XOBA)
- cUL Listed (XOBA7)
- CE, RoHS
Let the experts help you find your perfect ACTL-1250-400 Split-Core CT setup
Not sure if your conductors need the 400A oval window or the smaller 200A CT? Send us your service size and conductor gauge and we will confirm the fit.
Email support@kratopower.com or call +1 888-855-7286.
ACTL-1250-400 Split-Core CT documents and materials
Safety disclaimer: CTs are installed around live service conductors. Installation should be carried out by a licensed electrician in line with the NEC, local codes and the manufacturer's instructions. You use this product at your own risk. The content on this page is general product information, not professional or medical advice. If you have any doubt, consult a qualified professional.
