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.