AC and DC Current Transmitters and Current Switches



*stock item*

Normally stocked, but please call first
Quantities available may vary on a daily basis
Please call to confirm quantities 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
Links
T201 AC and DC Current Sensors
API AC and DC Current Sensors
API product brochure
Options & accessories
Cross reference

Applications
  • Motor & pump loads
  • Generator output
  • SCR controlled loads
  • Electric heating elements
  • 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 select your product
  • Open pdf datasheet for your model
  • Select model, range, units, options, accessories
  • Contact us if you need assistance
Need a quote?
Ready to order?
Other ways to order
Model Input/Output Features Product

AC to DC Isolated Current Measurement


Field Configurable

Z201-H  $199
Module power: 85-265 VAC/VDC

Z201  $179
Module power: 19-40 VDC, 19-28 VAC

Open Datasheet
Download Datasheet

Open Z201-H manual
Download Z201-H manual

Open Z201 manual
Download Z201 manual
Field selectable input ranges
0-5 Amps AC
0-10 Amps AC
Selectable via wiring terminal

Field selectable output ranges
0-1 V, 0-5 V, 0-10 V, 2-10 V
0-20 mA, 4-20 mA sink or source
  • Full I/O/power isolation
  • Selectable sink/source mA output
  • Mount to 35 mm DIN rail
  • Z201-H power: 85-265 VAC/VDC
  • Z201 power: 19-40 VDC, 19-28 VAC

CE

Z201-HZ201
Seneca Z201-H and Z201

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


Field Selectable Ranges

Open Current Sensor Overview
Download Current Sensor Overview

T201DCH  50A  $119 *stock item*
Open T201DCH Installation Manual
Download T201DCH Installation Manual

T201DCH100  100A  $159
Open T201DCH100 Installation Manual
Download T201DCH100 Installation Manual

T201DCH300  300A  $169 *stock item*
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  $119
Open T201DCH50-LP Installation Manual
Download T201DCH50-LP Installation Manual

T201DCH100-LP  100A  $159
Open T201DCH100-LP Installation Manual
Download T201DCH100-LP Installation Manual

T201DCH300-LP  300A  $169
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  $169 *stock item*
Open T201DC Installation Manual
Download T201DC Installation Manual

T201DC100  to 100A  $229
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  $109 *stock item*
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

DIN Rail Adapter for T201 Current Sensors


A-DIN-T201  $19 *stock item*

No datasheet
Plastic DIN Rail adapter
Fits Seneca T201 current sensors
Mount current sensor on a standard 35 mm DIN rail
seneca-a-din-t201.jpg

seneca-a-din-t201-clip.jpg
A-DIN-T201

AC Current Transmitters, Loop Powered


Jumper Selectable Ranges

CTX-AC-0  $218
CTX-ACR-0 True RMS  $278
CTX-AC-1  $207*stock item*
CTX-ACR-1 True RMS  $265
CTX-AC-2  $207
CTX-ACR-2 True RMS  $265*stock item*

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 CTX-AC only
apictxacr
CTX-AC, CTX-ACR Series

AC Current Transmitters, Loop Powered


Switch Selectable Ranges

CTX-AC-3S  $278
CTX-ACR-3S True RMS  $323 *stock item*
CTX-AC-4S  $367
CTX-ACR-4S True RMS  $412

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  $134 *stock item*
CS-AC-2  $134 *stock item*

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  $278
CTX-DC-1  $271*stock item*
CTX-DC-2  $271
CTX-DC-3  $271

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-12  $165
CS-DC-1S-24  $165
CS-DC-2S-12  $159
CS-DC-2S-24  $159 *stock item*

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
CE
apicsdc
CS-DC Series