Gold Member Since 2011
Audited Supplier
Tianjin Grewin Technology Co., Ltd.

Current Transformer, Current to Voltage Transducer, Isolating Transformer manufacturer / supplier in China, offering Current to Voltage Transducer (GWCTSA), Electronics Power Supply China with IEC, High Frequency Coils Chokes for PCB and so on.

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Current to Voltage Transducer (GWCTSA)

Purchase Qty.:
1,000-9,999 10,000+
FOB Unit Price: US $1.5 US $0.5
Purchase Qty. (Pieces) FOB Unit Price
1,000-9,999 US $1.5
10,000+ US $0.5
Get Latest Price
Port: Tianjin, China
Production Capacity: 100000PCS/Month
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram

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Basic Info
  • Model NO.: Grewin
  • Type: Current Transformer
  • Operation Condition: Indoor
  • Winding Form: Small Fixed Type
  • Installation: Wire Leads
  • Voltage Transformation Principle: Electromagnetic Type
  • Rated Secondary: Ma or 0.333-3.53VAC
  • Accuracy Class: 0.5, 1.0, 3.0 Class
  • Trademark: Grewin
  • Specification: CE, ROHS
  • HS Code: 85045000
  • Application: Electronic, Instrument, Position Sensor, Audio, Lighting
  • Phase: Single
  • Usage: Protection
  • Insulating Medium: Common Insulating Materials
  • Magnetic Circuit Structure: Coil
  • Type1: Current Transformer
  • Frequency: 50/60Hz: Operating Voltage:600VAC
  • Secondary Ratios Available: 5.0,1.0 a AC
  • Transport Package: Export Standard Carton With Strong Pallet
  • Origin: Tianjin
Product Description

standard sizes
Split core design, safer, easier installation, and portable
Measures AC current flow to electric motors,
Lighting, air condition equipment, etc. Compatible with HVAC temperature control, power management, building automation systems.
Rated Primary current: 100-300AAC
Rated Secondary: MA or 0.333-3.53Vac
Accuracy: 0.5, 1.0, 3.0 Class
Rated security coefficient: FS< 5
Case Material: Nylon Resin UL flame retardant rating 94-V0
Highest Voltage for Equipment Um (RMS): 720 Vac
Rated Power-Frequency Withstand Voltage (RMS): 3, 000 Vac
Frequency Range: 50/60Hz.
Operating Temperature: -15 to 60
RoHS compliant
Leads: 0.8Foot(240mm), UL 1015, Twisted Pair,
0.34 mm2(22AWG

GWCTSA Series Split Core Current Sensor (Specifications)

Rated Primary current


Rated Secondary current


Rated load

1, 2.5, 5.0, 10, 30VA


0.5, 1.0, 3.0 Class

Rated Short-time thermal current (Ith)


Rated Dynamic current (Idyn)


Case Material

 UL flame retardant rating 94-V0

Highest Voltage for Equipment Um (rms)

720 Vac

Rated Power-Frequency Withstand Voltage(rms)

3,000 Vac 

Frequency Range:


Operating Temperature

 -15ºC to 50ºC


IEC 60044-1


Supplied with feet for base mounting if required


RoHS compliant CE&ETL approved

GWCTSA Series Split Core Current Sensor  (Features)

Low cost

5 standard sizes

Split core design, safer, easier installation, and portable

GWCTSA Series Split Core Current Sensor  (Applications)

Measures AC current flow to electric motors, lighting, air condition equipment, etc. 

Compatible with HVACtemperature control, power management, building 

The GREWIN CTSA series of split core ct style current sensors are designed for fast and easy installation.The split core design permits non-contactcurrent measurements through magnetic field induction without disconnecting cables or busbar circuits for CT installation. This method permits a safer, easier and portable current measurement.
0.333-3.53V rated secondary output split core current transformer :
Model No 1 :GWCTSA010
Ratio : 3000:1
Rated input: 5A 10A 20A 50A 75A
Accuracy class: 1.0s  3.0s
Rated primary current :120A
Protection: 5 times protection ,10 times protection like 25A 50A 100A 200A 250A 385A 500A 750A
Model No.2 :GWCTSA016
Ratio :3000:1
Rated input: 75A 100A 150A
Accuracy class: 0.5 1.0S
Rated accuracy limit primary current: 300A
Protection : 5 times Protection, 10 times protection 
Model No. 3:GWCTSA024
Ratio : 3000:1 
Rated input: 100A 150A 200A 250A 
Accuracy class: 0.5 1.0S
Rated accuracy limit primary current: 540A
Protection : 5 times Protection, 10 times protection
Model No.4:GWCTSA035
Rated input: 200A 300A 400A 600A
 Accuracy class: 0.5 1.0S
Rated accuracy limit primary current: 600A
Protection : 5 times Protection, 10 times protection
Frequency: 50--400Hz
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