AC and DC Current Transmitters and Current Switches

T201 Series AC and DC Current Sensor Overview

API AC and DC Current Sensor overview


*in stock* based on weekly stock count and can ship next day
Quantities may be limited
Please call to confirm quantity and lead time
Out of stock T201: 1-2 weeks
Out of stock CS and CTX: 3-4 weeks

Click on PDF links below
for product information

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 options
  3. Note that options affect pricing
  4. Request a quote via chat or call us
  5. 2 day to 4 week typical lead time (USA customers)
  6. To place your order
Model Input/Output Features Product

AC/DC Hall Effect Current Transmitters 0-10V Output


Field Selectable Ranges

Open Current Sensor Overview
Download Current Sensor Overview

T201DCH  50A  $109 *in stock*
Open T201DCH Installation Manual
Download T201DCH Installation Manual

T201DCH100  100A  $149
Open T201DCH100 Installation Manual
Download T201DCH100 Installation Manual

T201DCH300  300A  $159 *in stock*
Open T201DCH300 Installation Manual
Download T201DCH300 Installation Manual


Input T201DCH
25, 50 ADC/AAC

Input T201DCH100
50, 100 ADC/AAC, ±50, ±100 ADC

Input T201DCH300
150, 300 ADC/AAC, ±150, ±300 ADC

Output
0-10 VDC

Powered by
10-28 VDC

  • Hall Effect measures AC or DC
  • DIP-switch selectable ranges
  • Solid core design
CE
UL
T201DCH 50
T201DCH 50 Amp
T201DCH100
T201DCH 100, 300 Amp

AC/DC Hall Effect Current Transmitters Loop Powered


Field Selectable Ranges

Open Current Sensor Overview
Download Current Sensor Overview

T201DCH50-LP  50A  $109
Open T201DCH50-LP Installation Manual
Download T201DCH50-LP Installation Manual

T201DCH100-LP  100A  $149
Open T201DCH100-LP Installation Manual
Download T201DCH100-LP Installation Manual

T201DCH300-LP  300A  $159
Open T201DCH300-LP Installation Manual
Download T201DCH300-LP Installation Manual


Input T201DCH50-LP
50 ADC/AAC, ±50 ADC

Input T201DCH100-LP
50, 100 ADC/AAC, ±50, ±100 ADC

Input T201DCH300-LP
150, 300 ADC/AAC, ±150, ±300 ADC

Output
4-20 mA

Power
9-28 VDC current loop

  • Hall Effect measures AC or DC
  • DIP-switch selectable ranges
  • Solid core design
CE
UL
T201DCH50-LP
T201DCH 50 Amp
T201DCH100-LP
T201DCH 100, 300 Amp

DC Current Transmitters Loop Powered


Field Selectabe Ranges

Open Current Sensor Overview
Download Current Sensor Overview

T201DC  to 40A  $159 *in stock*
Open T201DC Installation Manual
Download T201DC Installation Manual

T201DC100  to 100A  $209
Open T201DC100 Installation Manual
Download T201DC100 Installation Manual

Input T201DC
5, 10, 20, 40,
±5, ±10, –5-20,
–10-40 ADC

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

Output
4-20 mA

Power
5-28 VDC current loop

  • Measures DC Current
  • DIP-switch selectable ranges
  • Solid core design

CE
UL
T201DCH 50
T201DC 40 Amp DC
T201DC100
T201DC 100 Amp DC

AC Current Transmitter Loop Powered


Field Selectabe Ranges

Open Current Sensor Overview
Download Current Sensor Overview

T201  to 40A  $99 *in stock*
Open Installation Manual
Download Installation Manual


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

Output
4-20 mA

Power
5-28 VDC current loop

  • Measures AC Current
  • DIP-switch selectable ranges
  • Solid core design

CE
UL
T201
T201

AC Current Transmitters, Loop Powered


Jumper Selectable Ranges

CTX-AC-0  $189
CTX-ACR-0 True RMS  $239
CTX-AC-1  $177 *in stock*
CTX-ACR-1 True RMS  $229 *in stock*
CTX-AC-2  $177 *in stock*
CTX-ACR-2 True RMS  $229

Open Datasheet
Download Datasheet
Input CTX-AC-0
2 A, 5 A

Input CTX-ACR-0
2 A, 5 A

Input CTX-AC-1
10 A, 20 A, 50 A

Input CTX-ACR-1
10 A, 20 A, 50 A

Input CTX-AC-2
100 A, 150 A, 200 A

Input 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, Loop Powered


Switch Selectable Ranges

CTX-AC-3S  $255
CTX-ACR-3S True RMS  $296
CTX-AC-4S  $338
CTX-ACR-4S True RMS  $380

Open Datasheet
Download Datasheet
Input CTX-AC-3S
375 A, 500 A, 750 A

Input CTX-ACR-3S
375 A, 500 A, 750 A

Input CTX-AC-4S
1000 A, 1333 A, 2000 A

Input CTX-ACR-4S
1000 A, 1333 A, 2000 A

Output
4-20mA

Power
12-40 VDC current loop

  • 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  $112 *1 in stock*
CS-AC-2  $112 *1 in stock*

Open Datasheet
Download Datasheet
Input
0-150 Amps AC input

Output CS-AC-1
NC solid state relay, 0.15A @ 130 VAC/VDC

Output CS-AC-2
NO solid state relay, 0.15 A @ 240 VAC/VDC

Power
Self-powered via input current

  • 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


Jumper Selectable Ranges

CTX-DC-0  $239
CTX-DC-1  $234 *1 in stock*
CTX-DC-2  $234
CTX-DC-3  $234

Open Datasheet
Download Datasheet
Input CTX-DC-0
50 A, 75 A, 100 A

Input CTX-DC-1
100 A, 50 A, 200 A

Input CTX-DC-2
150 A, 225 A, 300 A

Input CTX-DC-3
200 A, 300 A, 400 Amps

Output
4-20mA

Power
20-45 VDC or 22-38 VAC

  • Jumper selectable ranges
  • Split core design
  • 5-year warranty

CE

apictxdc
CTX-DC Series

DC Current Switches


CS-DC-1S-24  $140
CS-DC-2S-24  $135 *1 in stock*
CS-DC-1S-12  $140
CS-DC-2S-12  $135

Open Datasheet
Download Datasheet
Email Datasheet Link
Input
0-100 Amps DC

Output CS-DC-1S-24
SPDT relay,
5 A @ 240 VAC / 3 A @ 30 VDC

Output CS-DC-2S-24
NO Solid state relay,
0.3 A @ 135 VAC/DC

Output CS-DC-1S-12
SPDT relay,
5 A @ 240 VAC / 3 A @ 30 VDC

Output S-DC-2S-12
NO Solid state relay,
0.3 A @ 135 VAC/DC

Power CS-DC-1S-24, CS-DC-2S-24
20-28 VAC/DC

Power CS-DC-1S-12, CS-DC-2S-12
12 VAC/DC ±10%




  • Adjustable 2 to 100 Amp setpoint
  • Low voltage AC or DC powered
  • LED power and status indicators
  • Solid core
  • 5-Year warranty

apicsdc
CS-DC Series