Johnson Controls H221, H321, H421 Catalog Page

CURRENT MONITORING

SENSED AMPS

100 to 300A (H221) 300 to 800A (H321) 1000 to 2400A (H421)

0A *

4mA

20mA

SENSOR OUTPUT

*Adjusted with Span Potentiometer

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Maximize Reliability

Minimize Installed Cost

221/321/421

High Amperage Split-Core Current Transducer

IDEAL FOR INDUSTRIAL SIZE LOADS

H221

The Hawkeye 221/321/421 analog current transducers provide reliable load trending information for large motor loads (up to 2400A) with a proportional 4-20mA signal. Each sensor can be calibrated for maximum resolution using the span potentiometer.

APPLICATIONS

■ Load trending of large motors

■ Split-core design is ideal for retroﬁt load trending

H221/321/421 LINEAR OUTPUT

Scale software as show n

4-20mA Loop Powered Output

Monitor larger motors & other loads up to 2400A

■ Split-core design for easy installation

■ Eliminates need for ex ternal CTs on large conductors

■ Large openings for heavy conductors

■ Monitor critical motors (compressor, fuel, etc.)

Loop powered 4-20mA output

■ Two-wire design reduces wiring cost

■ Zero and span adjustment for easy setup and high resolution

■ 5-year limited warranty

ORDERING INFORMATION

MODEL AMPERAGE RANGE OUTPUT TYPE UL

H221 0A 100 to 300A 4-20mA H321 0A 300 to 800A 4-20mA H421 0A 1000 to 2400A 4-20mA

Factory calibratio n available upon request

ACCESSORIES

Universal Power Supply, Universal Mou nting Bracket Kit...See page 234

4mA 20mA (SPAN)

800.354.8556

 

503.598.4564

www.veris.com

800.354.8556

503.598.4564

www.veris.com

H221

H321

H421

A = 3.75" (96 mm) B = 1.51" (38 mm) C = 1.25" (32 mm) D = 1.13" (29 mm) E = 4.20" (107 mm) F = 4.75" (121 mm)

A = 4.90" (125 mm) B = 2.89" (73 mm) C = 2.45" (62 mm) D = 1.13" (29 mm) E = 5.57" (142 mm) F = 5.91" (151 mm)

A = 4.90" (125 mm) B = 5.50" (140 mm) C = 2.45" (62 mm) D = 1.13" (29 mm) E = 8.13" (207 mm) F = 5.92" (151 mm)

Motor

CONTACTOR

CONTROLLER

12-30VDC Po

wer Source

Fan or Pump

H221/321/421

CURRENT MONITORING

APPLICATIONS/WIRING EXAMPLE

DIMENSIONAL DRAWINGS

H221

H321

H421

800.354.8556

503.598.4564

SPECIFICATIONS

Amperage Range: Model 221 0-300A (potentio meter scalable) Model 321 0-800A (potentio meter scalable) Model 421 0-2400A (potentiome ter scalable) Output 4-20mA Insulation Class 600VAC rms Frequenc y Range 60Hz nominal Temperature Range -15° to 60°C Humidit y Range 0 - 95% non-condensing Accurac y 2% Response Time 2 sec. Supply Voltage 12 to 30VDC Supply Current 30mA max. Zero Adju stment 3.5 to 4.5mA

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