H221 | Split Core | Span Adj. | Range: 0-300AAC | Output: 4-20mA | Loop | Veris
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H221 | Split Core | Span Adj. | Range: 0-300AAC | Output: 4-20mA | Loop | Veris

Hawkeye 0 to 300 A Input 4 to 20 mA DC Output High Analog Current Transducer, Split-Core, 1.6 x 1.4 in

Veris | H221
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Details for H221

Split Core | Span Adj. | Range: 0-300AAC | Output: 4-20mA | Loop

Large Load Trending With 4-20mA Output



  • Split-core design for easy installation and fast retrofits
  • No need for external CTs on large conductors● Large openings for heavy conductors
  • Loop powered 4-20mA output
  • Two-wire design reduces wiring cost
  • Hx21 models offer zero and span adjustments for field flexibility
  • Hx21SP models are factory-set at a range specified by the cus-tomer for easy setup and high confidence
  • 100% solid state...no moving parts to fail
  • 5-year warranty


Hawkeye x21/x21SP analog current transducers provide reliable load trending information for large motor loads (up to 2400A), with a propor-tional 4-20mA signal. Three devices are available, each with a different amperage range. The Hx21 versions include a span potentiometer that allows each sensor to be calibrated for maximum resolution. The Hx21SP versions are factory-calibrated at a range specified by the customer.


  • Load trending of large motors and other loads up to 2400 Amps
  • Monitor critical motors (compressor, fuel, etc.)


Item Number H221
Brand Veris
Application Building Automation Systems
Current Core Split Core
Current Measurement Accuracy ±2% of F.S. above 30 A
Current Measurement Range 0 - 300 A
Current Sensor type Current Transducer; AC
Electrical Wiring Size 22 - 12 AWG (0.33 - 3.3 mm²)
Measurement Type AC Current
Model H221
Monitored Frequency Range 50 - 60 Hz
Monitored Wire Size 1.4" (35 mm)
Mounting Split Core
Operating Humidity 10 - 90% RH; non-condensing
Operating Temperature 5 - 140 °F (-15 - 60 °C)
Output Specifications 4 - 20 mA
Outputs Analog output
Product Certification UL | CE
Product Type Sensor
Range High Current Series
Relay Coil Voltage None
Relay Contact Ratings None
Relay Poles/Throw None
Sensor Current Sensor (Hawkeye)
Warranty 5 years
Sensor Power 30mA (max)@12-30VDC
Insulation Class 600VAC RMS
Frequency Range 50/60 Hz
Temperature Range -15° to 60°C (5° to 140°F)
Humidity Range 10-90% RH, non-condensing
Accuracy ±2% from 10 to 100% of full scale
Response Time 2 sec.
Zero Adjustment nominal output@0A: 4mA ± 0.5mA
Terminal Block Maximum Wire Size 12 AWG (3.3 mm2)
Terminal Block Torque 7 to 8 in-lbs (0.8 to 0.9 N-m)
Agency Approvals UL 508 open device listing, CE: EN61010-1, (H221, H321 Only) CAT III, pollution degree 2, basic insulation


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