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CTRC AC Series Current Transformers


CTRC flexible-coil AC current transducers wrap around existing conductors and provide a 333 mV AC output for compatible power monitors and transducers. Select a factory-calibrated full-scale rating of 300, 500, 1000, 1500 or 2000 A. The matched sensing coil and signal conditioner combine a 4.5 in (115 mm) sensing aperture with DIN-rail mounting and a 24 V AC/DC supply.


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CTRC-333-24 VAC/DC (12–36 V)40–400 Hz±1% FSCE, UL Listed - USA & CanadaInquireConfigurator
Power Supply:

24 V AC/DC nominal (12–36 V); Class 2 supply

Output(s):

333 mV AC at full-scale primary current

Accuracy:

±1% FS, at 10–100% of range

Frequency Range:

40–400 Hz

Environmental:

−20 to 50°C; 0–95% RH, non-condensing

Rated Primary Current:

Factory-calibrated full scale: 300, 500, 1000, 1500 or 2000 A

Output Loads:

100 kΩ minimum for stated accuracy

Power Consumption:

<2 VA

Response Time:

2 ms to 90% of step change

Isolation Voltage:

Tested to 3.5 kV

Case:

UL94 V-0 thermoplastic

Approvals:

UL/cUL and CE

Case:

Flexible coil: 4.5 in (115 mm) aperture; matched DIN-rail signal conditioner

Maximum Primary Circuit Voltage:

CAT III 300 V maximum line-to-neutral (instruction sheet)


The output follows the monitored AC waveform for compatible metering equipment. Supply and output are optically isolated. The sensing coil and signal conditioner are factory-matched and calibrated as a set; keep both together for service.

Example order number: CTRC-333-500-24U-D. Use a Class 2 supply and an output load of at least 100 kΩ to achieve the stated accuracy. Install the coil with its direction arrow toward the source. The instruction sheet specifies CAT III 300 V maximum line-to-neutral.


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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