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CTT Solid-Core Current Transformer

DESCRIPTION

Toroidal solid-core (donut) current transformers are more compact and accurate than traditional split-core CTs. Solid-core CTs are use by electric utilities for billing.  (Note: the low-end accuracy of CCS’ patented Accu-CT split-core technology is better than solid-core CTs)

You must disconnect the measured circuit to install solid core CTs, so they are better suited for new wiring or permanent installation.

  • Safe, low-voltage 0.333 Vac output at rated current for indoor use only in 50 or 60 Hz electrical services
  • Accuracy ±1% from 10% to 130% of rated current
  • No exposed metal, 600 Vac rated
  • Phase angle less than 1 degree
  • UL recognized (E969227), CE mark, RoHS
  • Twisted-pair, 22 AWG twisted wire leads, 8 feet long
  • Qualified under the Buy American provision in the American Recovery and Reinvestment Act of 2009 (ARRA).
  • Dimensional drawing
  • CTT Solid-Core CT Brochure (PDF 2 page)

Safety Note

Warning: Hazardous Voltages – Only qualified personnel or licensed electricians should install the WattNode meter and current transformers.

WARNING:This product can expose you to chemicals including Diisononyl Phthalate (DINP), which is known to the State of California to cause cancer. For more information go to: www.P65Warnings.ca.gov

MODELS

CTT-0300-XXX

MODEL I.D. RATED AMPS (XXX) MAX. AMPS MAX. WIRE GAUGE
CTT-0300-005 0.30″ 5 40 10 AWG, 4* AWG
CTT-0300-015 0.30″ 15 40 10 AWG, 4* AWG
CTT-0300-030 0.30″ 30 40 10 AWG, 4* AWG

CTT-0500-XXX

MODEL I.D. RATED AMPS (XXX) MAX. AMPS MAX. WIRE GAUGE
CTT-0500-015 0.50″ 15 80 2 AWG, 1/0*
CTT-0500-030 0.50″ 30 80 2 AWG, 1/0*
CTT-0500-050 0.50″ 50 80 2 AWG, 1/0*
CTT-0500-060 0.50″ 60 80 2 AWG, 1/0*

CTT-0750-XXX

MODEL I.D. RATED AMPS (XXX) MAX. AMPS MAX. WIRE GAUGE
CTT-0750-030 0.75″ 30 130 3/0, 300* kcmil
CTT-0750-050 0.75″ 50 130 3/0, 300* kcmil
CTT-0750-070 0.75″ 70 130 3/0, 300* kcmil
CTT-0750-100 0.75″ 100 130 3/0, 300* kcmil

CTT-1000-XXX

MODEL I.D. RATED AMPS (XXX) MAX. AMPS MAX. WIRE GAUGE
CTT-1000-050 1.00″ 50 260 300 kcmil, 500* kcmil
CTT-1000-070 1.00″ 70 260 300 kcmil, 500* kcmil
CTT-1000-100 1.00″ 100 260 300 kcmil, 500* kcmil
CTT-1000-150 1.00″ 150 260 300 kcmil, 500* kcmil
CTT-1000-200 1.00″ 200 260 300 kcmil, 500* kcmil

CTT-1250-XXX

MODEL I.D. RATED AMPS (XXX) MAX. AMPS MAX. WIRE GAUGE
CTT-1250-070 1.25″ 70 520 500 kcmil, 750* kcmil
CTT-1250-150 1.25″ 150 520 500 kcmil, 750* kcmil
CTT-1250-200 1.25″ 200 520 500 kcmil, 750* kcmil
CTT-1250-250 1.25″ 250 520 500 kcmil, 750* kcmil
CTT-1250-300 1.25″ 300 520 500 kcmil, 750* kcmil
CTT-1250-400 1.25″ 400 520 500 kcmil, 750* kcmil

The “Max. Amps” is the highest continuous current that the CT can handle.
The “Max Wire Gauge” is the largest wire gauge that should fit through this size of CT.
* These sizes may or may not fit, depending on the insulation thickness.
List prices for 1-30 piece quantities. Call for pricing on larger quantities.