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

Current Transformer Sensors, 0.5 1.0 3.0s Current Trransfomer, 5A Current Transformer Tests manufacturer / supplier in China, offering Class 0.1 0.5 1 Split Core Current Sensors for Lighting, High Quality Toroidal Minature Current Transformer, Accuracy 0.1 0.2 Minature Current Transformer for Electrical Watthour Meter and so on.

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Class 0.1 0.5 1 Split Core Current Sensors for Lighting

FOB Price: US $6.23 / Piece
Min. Order: 1,000 Pieces
Min. Order FOB Price
1,000 Pieces US $6.23/ Piece
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Port: Tianjin, China
Production Capacity: 500, 000 PCS/M
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram

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Basic Info
  • Model NO.: GWSCT
  • Rated Loadd: 1, 2.5, 5.0, 10, 30va
  • RoHS Compliant: CE-Approved: Rated Primary Current: 100-300AAC
  • Isolated Voltage: 2,500V AC: Coil Structure: Toroidal
  • Shell Material:PBT or ABS: Leads:: 0.8foot(240mm), UL 1015, Twisted Pair
  • Trademark: GW
  • Specification: CE, RoHS, SGS, GMP
  • HS Code: 85045000
  • Power Rating: 0.6va
  • Rated Secondary: Ma or 0.333-3.53VAC
  • Frequency: 50/60Hz: Operating Voltage:600VAC
  • Accuracy Class:: 0.5, 1.0, 3.0 Class Co: Low Cost: Water Proof
  • Secondary Ratios Available: 5.0,1.0AAC: Phase: Single
  • Transport Package: Export Standard Carton with Strong Pallet
  • Origin: Tian Jin
Product Description
0.333-3.53V  split core current transformer with core current
Class 0.1 0.5 1 Split Core Current Sensors for Lighting
GWCTSA series split core current transformer  
Part numberRated input(A)Second output(V)Accuracy classLimit primary current(A)Accuracy classFrequency(Hz)OutlineDimensions ID-L-W-H(mm)Unit weightTurn ratioOutput cable
GWCTSA0055  10  150.3331.0 3.0--50-4005.0-25.0-22.5-34.530g3000:1wire(1m)
GWCTSA0105,10,20,50,750.3331.0 3.01205P 10P50-40010-29.4-26.4-41.750g3000:1wire(1m)
GWCTSA01675,100,1500.3330.5 1.03005P 10P50-40016-36.9-39.2-52.9100g3000:1wire(1m)
GWCTSA024100,150,200,2500.3330.5 1.05405P 10P50-40024-51.2-47-70.2250g3000:1wire(1m)
GWCTSA035200,300,400,6000.3330.5 1.06005P 10P50-40035-65.8-51.2-83.5400g3000:1wire(1m)

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 
Class 0.1 0.5 1 Split Core Current Sensors for Lighting 
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

Class 0.1 0.5 1 Split Core Current Sensors for Lighting
Tianjin Grewin Technology Co.,Ltd.
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