AC and DC Current Transmitters and Current Switches

AC and DC Current Sensor Products
with all products on this page









Click on model numbers below
for data sheets
Literature and Links

API product brochure

Options & accessories

Cross reference
Applications
  • Motor & pump loads
  • Generator output
  • SCR controlled loads
  • Electric heating elements
  • Input to instrumentation, PLCs, or data loggers
  • Battery load or charging current
  • Energy management systems
  • Remote indication of electrical loads
  • Motor, heater, lighting on/off status
  • Conveyor jams and equipment failures
How to Order
  1. Select a model
  2. See data sheet for ordering info and power options
  3. See Price list
  4. 2 day to 4 week typical lead time (USA customers)
  5. To place your order
Model Input/Output Features Product
AC/DC Hall Effect Current Transmitters

Current Sensor Overview

T201DCH
T201DCH100
T201DCH300
T201DCH50-LP
T201DCH100-LP
T201DCH300-LP

new



Input

T201DCH: 25, 50 ADC/AAC
T201DCH100: 50, 100 ADC/AAC, ±50, ±100 ADC
T201DCH300: 150, 300 ADC/AAC, ±150, ±300 ADC
T201DCH50-LP: 50 ADC/AAC, ±50 ADC
T201DCH100-LP: 50, 100 ADC/AAC, ±50, ±100 ADC
T201DCH300-LP: 150, 300 ADC/AAC, ±150, ±300 ADC

Output
0-10 VDC
LP verions: 4-20 mA
  • Hall Effect measures AC or DC
  • 10-28 VDC, LP versions: 9-28 VDC loop power
  • DIP-switch selectable ranges
  • Solid core design
CE
UL
T201DCH 50
T201DCH 50 Amp
T201DCH100
T201DCH 100, 300 Amp
DC Current Transmitters

Current Sensor Overview

T201DC
T201DC100

new



Input

T201DC: 5, 10, 20, 40, ±5, ±10, –5-20, –10-40 ADC
T201DC100: 10, 25, 50, 100, ±5, ±10, –5-20, –10-40 ADC

Output
4-20 mA
  • Measures DC Current
  • 9-28 VDC loop power
  • DIP-switch selectable ranges
  • Solid core design

CE
UL
T201DCH 50
T201DC 40 Amp DC
T201DCH100
T201DCH 100 Amp DC
AC Current Transmitter

Current Sensor Overview

T201

new



Input

T201: 5, 10, 15, 20, 25, 30, 35, 40 Amps AC

Output
4-20 mA
  • Measures AC Current
  • 5-28 VDC loop power
  • DIP-switch selectable ranges
  • Solid core design

CE
UL
T201
T201
AC Current Transmitters

CTX-AC-0
CTX-ACR-0 True RMS
CTX-AC-1
CTX-ACR-1 True RMS
CTX-AC-2
CTX-ACR-2 True RMS

Input

CTX-AC-0:   2 A, 5 A
CTX-ACR-0: 2 A, 5 A
CTX-AC-1:  10 A, 20 A, 50 A
CTX-ACR-1: 10 A, 20 A, 50 A
CTX-AC-2:  100 A, 150 A, 200 A
CTX-ACR-2: 100 A, 150 A, 200 A

Output
4-20mA
  • Loop powered
  • Jumper selectable ranges
  • Split core design
  • Isolated output
  • 5-year warranty

CE UL

apictxacr
CTX-AC Series
AC Current Transmitters

CTX-AC-3S
CTX-ACR-3S True RMS
CTX-AC-4S
CTX-ACR-4S True RMS

Input

CTX-AC-3S:  375 A, 500 A, 750 A
CTX-ACR-3S: 375 A, 500 A, 750 A
CTX-AC-4S:  1000 A, 1333 A, 2000 A
CTX-ACR-4S: 1000 A, 1333 A, 2000 A

Output
4-20mA
  • Loop powered
  • Switch selectable ranges
  • Solid core
  • Isolated output
  • 5-year warranty

CE

apictx3s4s
CTX-AC 3, CTX-AC 4 Series
AC Current Switches

CS-AC-1
CS-AC-2

Input
0-150 Amps AC input

Output
CS-AC-1: NC solid state relay, 0.15A@130VAC/VDC
CS-AC-2: NO solid state relay, 0.15A@240VAC/VDC
  • Adjustable 1.5 to 150 Amp setpoint
  • Self-powered
  • Split core design
  • LED status indicator
  • 5-year warranty
  • 2 day to 4 wk lead time

CE UL
apicsac
CS-AC Series



DC Current Transmitters

CTX-DC-0
CTX-DC-1
CTX-DC-2
CTX-DC-3

Input

CTX-DC-0: 50 A, 75 A, 100 A
CTX-DC-1: 100 A, 50 A, 200 A
CTX-DC-2: 150 A, 225 A, 300 A
CTX-DC-3: 200 A, 300 A, 400 Amps

Output
4-20mA
  • 20-45 VDC or 22-38 VAC powered
  • Jumper selectable ranges
  • Split core design
  • 5-year warranty

CE

apictxdc
CTX-DC Series
DC Current Switches

CS-DC-1S-24
CS-DC-2S-24
CS-DC-1S-12
CS-DC-2S-12

Input
0-100 Amps DC

Output
CS-DC-1S-24: SPDT relay, 5A@240VAC/3A@30VDC
CS-DC-2S-24: NO Solid state relay, 0.3A@135VAC/DC
CS-DC-1S-12: SPDT relay, 5A@240VAC/3A@30VDC
CS-DC-2S-12: NO Solid state relay, 0.3A@135VAC/DC

Power
CS-DC-1S-24, CS-DC-2S-24: 20-28VAC/DC
CS-DC-1S-12, CS-DC-2S-12: 12VAC/DC ±10%




  • Adjustable 5 to 100 Amp setpoint
  • Low voltage AC or DC powered
  • LED power and status indicators
  • Solid core
  • 5-Year warranty

apicsdc
CS-DC Series