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MODEL 276B3 3-PhaseCurrent Transformers

Monitor 3-phase currentsfrom 50-1200 amps 25- 400 Hz Brass stud secondary terminals

SPECIFICATIONS

Part No. Ratio Max VAfor 1% accuracy Secondary WindingResistance at 167º F

Agency approved

276B3-50 50:5 2.5 .0153 276B3-100 100:5 2.5 .0306

DESCRIPTION

276B3-150 150:5 7.5 .0459

The Model 276B3 Current Transformer is a ring-type 3-phase current transformer (CT) for currents from 50 to 1200 amps. The Model 276B3 has an accuracy rating of ±2% for 50-100 amp CT’s and ±1% over 100 amps at 60 Hz. This CT also features a 25-400 Hz frequency range, #8-32 brass secondary terminals and mounting brackets. Polarity markings are stamped on the transformer.

276B3-200 200:5 10 .0612 276B3-250 250:5 12 .0765 276B3-300 300:5 20 .0919 276B3-400 400:5 25 .122 276B3-500 500:5 5 .0643 276B3-600 600:5 10 .0771 276B3-750 750:5 15 .0964

The Model 276B3 is UL Recognized and CSA Certified. Holes at the corners of the transformer case are for attaching a mounting plate (not supplied).

276B3-800 800:5 15 .1030 276B3-1000 1000:5 20 .1290 276B3-1200 1200:5 25 .1540

DIMENSIONS: 500 - 1200 AmpsDIMENSIONS: 50 - 400 Amps

8.5"1.47" 9.0"1.73" 2.0" 2.0" 1.11" 1.11"

.45" .38"
.28" .38"

3.70" 3.94" 1.50"1.63" dia.1.80".28" x .44" slots typ. 2.75" 1.75"2.08" dia.1.78".28" x .47" slots typ. 2.75" Telephone: Main - (918) 438-1220 Sales - (800) 862-2875 11440 East Pine Street Tulsa, Oklahoma 74116 Fax: (918) 437-7584 E-mail: sales@time-mark.com Internet: http://www.time-mark.com

Doc No. 87A276 12/00 © 2000
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