AC and DC Current Transmitters and Current Switches
T201 Series AC and DC Current Sensor Overview
API AC and DC Current Sensor overview
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
API AC and DC Current Sensor overview
*stock item* normally stocked, but call for number on hand
Quantities available may vary on a daily basisPlease call to confirm quantities and lead time
Out of stock T201: 1-2 weeks
Out of stock CS and CTX: 3-4 weeks

for product information
Literature and Links
API product brochure
Options & accessories
Cross reference
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
- Select a model
- See data sheet for ordering info and options
- Note that options affect pricing
- Request a quote via chat or call us
- 2 day to 4 week typical lead time (USA customers)
- To place your order
- Call 800-942-0315 for credit card order
- Find your authorized representative
- Call us to find your local distributor
- Set up an account to use a purchase order
- Outside the USA?
Model
Input/Output
Features
Product
5 Amp or 10 Amp AC Current Sensors
Factory Configured
Z201-H from $179
Z201-H module power: 85-265 VAC/VDC
Z201 from $179
Z201 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 to 0-10 Amps AC
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
0-5 Amps AC to 0-10 Amps AC
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
- Mount to 35 mm DIN rail
- Z201-H power: 85-265 VAC/VDC
- Z201 power: 19-40 VDC, 19-28 VAC



Seneca Z201
AC/DC Hall Effect Current Transmitters 0-10V Output
Field Selectable Ranges
Open Current Sensor Overview
Download Current Sensor Overview
T201DCH 50A $109 *stock item*
Open T201DCH Installation ManualDownload T201DCH Installation Manual
T201DCH100 100A $149
Open T201DCH100 Installation ManualDownload T201DCH100 Installation Manual
T201DCH300 300A $159 *stock item*
Open T201DCH300 Installation ManualDownload 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



T201DCH 50 Amp

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 ManualDownload T201DCH50-LP Installation Manual
T201DCH100-LP 100A $149
Open T201DCH100-LP Installation ManualDownload T201DCH100-LP Installation Manual
T201DCH300-LP 300A $159
Open T201DCH300-LP Installation ManualDownload 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



T201DCH 50 Amp

T201DCH 100, 300 Amp
DC Current Transmitters Loop Powered
Field Selectabe Ranges
Open Current Sensor Overview
Download Current Sensor Overview
T201DC to 40A $159 *stock item*
Open T201DC Installation ManualDownload T201DC Installation Manual
T201DC100 to 100A $219
Open T201DC100 Installation ManualDownload 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



T201DC 40 Amp DC

T201DC 100 Amp DC
AC Current Transmitter Loop Powered
Field Selectabe Ranges
Open Current Sensor Overview
Download Current Sensor Overview
T201 to 40A $99 *stock item*
Open Installation ManualDownload 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



T201
AC Current Transmitters, Loop Powered
Jumper Selectable Ranges
CTX-AC-0 $189
CTX-ACR-0 True RMS $239
CTX-AC-1 $177
*stock item*
CTX-ACR-1 True RMS $229
CTX-AC-2 $177
CTX-ACR-2 True RMS $229
*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
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



CTX-AC, CTX-ACR Series
AC Current Transmitters, Loop Powered
Switch Selectable Ranges
CTX-AC-3S $255
CTX-ACR-3S True RMS $296
*stock item*
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
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


CTX-AC 3, CTX-AC 4 Series
AC Current Switches
CS-AC-1 $112
*stock item*
CS-AC-2 $112
*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
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



DC Current Transmitters
Jumper Selectable Ranges
CTX-DC-0 $239
CTX-DC-1 $234
*stock item*
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
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


CTX-DC Series
DC Current Switches
CS-DC-1S-24 $140
CS-DC-2S-24 $135
*stock item*
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%
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


CS-DC Series