CT Type: Split-Core
Amperage: 400 amps
Inside Diameter: 23 mm or 0.91 inches
Outside Diameter: 61 mm or 2.40 inches
Thickness: 20 mm or 0.79 inches
Certifications: UL and cUL Listed
Wire Gauge: For use on cable that is 300 MCM or smaller. It is best to measure your wire diameter in millimeters, rather than use the MCM wire size. This is because the insulation thickness varies materially from one wire manufacturer to the next. It is much better to oversize your CT than to undersize it.
Open-able Split Core CTs are sometimes much easier to install and can be an over all savings in labor costs over Solid Core CTs depending on the degree of difficulty of the installation.
These CTs are extremely accurate down to a few watts. They have 15,037 internal turns, creating a 26.6 mA output at full amperage (400A). They are also exceedingly precise at 0.1% accurate which makes them ideal for revenue-grade applications. Use these CTs for any system from under 1/4 amp to 400 amps.
- Use 1 CT for 120 volt single phase North American, or 230 volt 2-wire foreign systems
- Use 2 CTs for 120/240 volt single phase systems
- Use 2 CTs for 3-phase 3-wire systems (no neutral)
- Use 3 CTs for 3-phase 4-wire systems
Wires coming from the CTs are 2 meters in length. They can be extended but this may affect accuracy.
These CTs have received UL approval for use with our UL Listed Omnimeters to be a complete UL Listed installation.
Each CT has a unique serial number, is individually tested, and indicates the correct orientation of the CT in relation to the load of the electrical system being metered.
For more information about our products and services, we encourage you to visit our online Knowledge Base, which provides spec sheets, videos, tutorials, FAQs, diagrams, and more.
Spec Sheet: Split Core, 23mm, 400A CT