Answer

Yes, Split core CTs can be extended with twisted pair wire to cover longer distances. Twisted pair wiring is recommended, as it will reduce noise and interference. If you need to extend a CT wire farther than approximately 100 ft (30m), voltage drop must be taken into account and a larger gauge wire should be used.

CT Lead Length:

• Leads longer than ~100 ft (30 m) may reduce accuracy, especially when measuring very low currents with high-amperage CTs.
   

Recommended Wiring:

• Use 22 AWG to 18 AWG, 600V-rated twisted pair wire (available in the eGauge webstore).
• 600V-rated CAT5 Ethernet cable is also acceptable and can extend up to 4 CTs.
• Any twisted pair wire with proper insulation and gauge is suitable—ensure it's rated for the installation environment.
• Shielded cable is recommended for longer runs to reduce interference.
   

Connection Methods:

• Use solder with heat shrink tubing, butt connectors, or inline lever connectors (available in the CT Extension pack).
• Do not use wire nuts to extend CT leads.