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ProteCT Series Current Transformers


ProteCT split-core current transformers provide a low-voltage 0–333 mV AC output proportional to AC primary current. These self-powered sensors suit compatible power transducers and data loggers. Choose an NKP-075 with a 0.85 in (22 mm) aperture, CTP-125 with a 1.25 in (31.75 mm) aperture, or CTP-200 with a 2.00 in (50.8 mm) aperture.


Select & Configure Model
Base Model #Power SupplyFrequencyAccuracyApprovalsNormally
In Stock
Add to Cart /
Configure Part #
 
NKP-075Self Powered-±1% (NKP-075)NoneInquireConfigurator
CTP-125Self Powered-±2% (CTP-125)NoneInquireConfigurator
CTP-200Self Powered-±2% (CTP-200)NoneInquireConfigurator
Power Requirement:

Self-powered

Output(s):

0–0.333 V AC

Isolation Voltage:

5000 V AC, insulated primary conductor

Rated Primary Current:

NKP-075: 5–200 A; CTP-125: 100–600 A; CTP-200: 600–1500 A

Isolation Voltage:

3 kV

Max. Inrush Current:

300% of full scale for 6 seconds

Accuracy:

NKP-075: ±1%; CTP-125 and CTP-200: ±2%

Response Time:

<1 ms

Environmental:

−20 to 50°C; 0–95% RH, non-condensing

Case:

Split-core; NKP-075: 0.85 in (22 mm), CTP-125: 1.25 in (31.75 mm), CTP-200: 2.00 in (50.8 mm) aperture

Phase Angle:

<1°; 2° at 50% of range


NKP-075 models cover 5, 15, 30, 50, 70, 100, 150 and 200 A. CTP-125 models cover 100, 150, 200, 250, 300, 400 and 600 A. CTP-200 models cover 600, 800, 1000, 1200 and 1500 A.

Ordering punctuation differs by family: examples are NKP-075-005SP, CTP-125-101-SP and CTP-200-152-SP. The 333 mV output design does not require the secondary shorting blocks used with conventional 5 A current transformers.


Mod Tronic Instruments Limited
1 Delta Park Blvd #12
Brampton, ON L6T 5G1
Phone: 905-457-6322 or 1-800-794-5883
Fax: 905-457-4716 or 1-800-830-7122
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