Grewin 200A Small Torodial Core Current Transformer

• Customization: Available
• Application: Electronic, Instrument, Position Sensor, Audio, Lighting
• Type: Current Transformer
• Model NO.: GWTA
• Phase: Single
• Operation Condition: Outdoor
• Usage: Protection, Measurement
• Winding Form: Single Layer & Tightly Wound Type
• Insulating Medium: Epoxy Resin
• Installation: Active Type
• Magnetic Circuit Structure: Combined Type
• Voltage Transformation Principle: Electromagnetic Type
• Type1: Current Transformer
• Transport Package: Export Standard Carton Pallet
• Specification: CE, UL, ROHS
• Trademark: Grewin
• Origin: Cn
• HS Code: 85044019
• Production Capacity: 10000PCS

Product Description

Current transformer mainly used in all kinds of electricity meter such as energy meter, water meter or electricity meter. We have current transformers both with and without DC immune. We can offer through-hole type, PCB type, Busbar type and flying wir type in mounting. Product with high accruacy up to 0.5, small phase error etc. We can also design and manufacture all kinds of current transformer according strictly to customer's special requirements.

Description:
1), All enclosed design, good performance of mechanical and insulation.
2), Pin design, easy to installate in PCB.
3), This series of CTs have small size that can be used as separate.
4), Linear output with high accuracy current.
5), Smalll size, light weight, standard hole easy to installation, Normal specifications and parameters as follow.
GW-0021-40T-600A Features:

1. Rated Primary Current: 200A
2. Rated Load: 2.5VA
3. Accuracy Class: 0.3L
4. Linearity Range: 0-3Times Rated Input Current
5. Operating Temperature: -25~+70 degree
6. Isolation Voltage: 2500VAC/min, 0.5mA
 

Single Turn Primary Mini Current Transformer(specifications)
Exterior Material	PBT Resin UL flame retardant rating 94-V0
Interior Insulation	Epoxy Encapsulated
Isolation Voltage	2500 Vrms for 1 minute
Dielectric Resistance	1000 M Ohms @ 500 Vdc
Surge Withstand	5000V(1.2/50μs standard  shock wave)optional
Rated Load Resistance	100K Ohms
Operating Temperature	-25 to +55ºC,-40 to +85ºCoptional
Frequency	50 to 400 Hz
Accuracy Class	defined in IEC 60044-1 Part 1 Voltage Transformers Class 0.1 0.2
Certification	RoHS Compliant CE Approved

Single Turn Primary Mini Current Transformer(features)

Low cost

More than 50 standard sizes

Non-symmetrical mounting pattern

Toroidal Silicon steel and Nickel Alloy available

 
 

Single Turn Primary Mini Current Transformer(applications)

For applications that require exceptional accuracy with minimal phase angle error

Applications would include Voltage,power and energy monitoring devices

 
  

Photograph	Part  Number	Rated Input Current (A)	Turn Ratio	Frequency ( Hz )	Secondary  Burden  Resistance (Ohms)	Accuracy Class	Outline  Dimensions  (mm)
	GWTA1111	5~30	1000:1 2000:1 2500:1	50 to 400	≤200	0.1 0.2 0.5	ID-L-W-H 7.0-22.0-18.0- 23.0
	GWTA1311	5~80			≤800	0.1 0.2 0.5	ID-L-W-H 8.0-25.3-18.0- 30.0
	GWTA1411	5~80			≤800	0.1 0.2 0.5	ID-L-W-H 9.0-31.5-20.5- 33.5
	GWTA21A11	5~50	1000:1 2000:1 2500:1 3000:1	50 to 400	≤200	0.1 0.2 0.5	ID-L-W-H 6.9-25.0-11.6- 26.5
	GWTA21B11	5~50			≤200	0.1 0.2 0.5	ID-L-W-H 6.7-23.5-11.5- 25.0
	GWTA21CB11	5~15	1000:1 2000:1	50 to 400	≤50	0.2 0.5	ID-L-W-H 3.6-18.0-10.0- 19.0
	GWTA21CE11				≤50		ID-L-W-H 5.0-17.0-9.2- 16.7
	GWTA21CD11				≤50		ID-L-W-H 5.0-18.0-10.0- 19.0
	GWTA21C11		1000:1 2000:1 2500:1		≤50		ID-L-W-H 4.5-18.0-10.0- 20.0
	GWTA21CA11				≤300		ID-L-W-H 4.5-19.0-12.5- 19.0
	GWTA21E11	5~20			≤200	0.1 0.2 0.5	ID-L-W-H 5-21-13.5-21.5
	GWTA21F11	5~30	1000:1 2000:1 2500:1 3000:1		≤200	0.2 0.5	ID-L-W-H 6.7-23.9-12-25
	GWTA22B11	5~80	1000:1 1500:1 2000:1 2500:1 3000:1	50 to 400	≤800	0.1 0.2 0.5	ID-L-W-H 8.7-26-17.5- 27.5
	GWTA22D11	5~100			≤1000	0.1 0.2 0.5	ID-L-W-H 9.0-29.5-19.0-30
	GWTA22E11	5~100			≤1000	0.1 0.2 0.5	ID-L-W-H 12.8-36.7-14.2- 38.5
	GWTA2311	5~20	1000:1 2000:1 2500:1	50 to 400	≤200	0.1 0.2	ID-L-W-H 5.0-18.8-17.8- 19.5
	GWTA23B11	5~80	1000:1 2000:1 2500:1 3000:1 5000:1		≤100	0.1 0.2 0.5	ID-L-W-H 6.0-25.0-21.5- 26.0
	GWTA23A11	5~100			≤1000	0.1 0.2 0.5	ID-L-W-H 6.0-34.0-22.0- 36.0
	GWTA32B11	5~20	1000:1 2000:1 2500:1	50 to 400	≤100	0.1 0.2	ID-L-W-H 5-17.6-19.3- 17.6
	GWTA3311	5~80	1000:1 1500:1 2000:1 2500:1 3000:1		≤500	0.1 0.2 0.5	ID-L-W-H 6.0-28.0-28.0- 22.0
	GWTA34B11	5~100			≤1000	0.1 0.2 0.5	ID-L-W-H 5.5-34.0-34.0- 23.0

 

 

Part  Number	Rated Input Current (A)	Turn Ratio	Frequency ( Hz )	Secondary  Burden  Resistance (Ohms)	Accuracy Class	Outline  Dimensions  (mm)
GWTA1111	5~30	1000:1 2000:1 2500:1	50 to 400	≤200	0.1 0.2 0.5	ID-L-W-H 7.0-22.0-18.0- 23.0
GWTA1311	5~80			≤800	0.1 0.2 0.5	ID-L-W-H 8.0-25.3-18.0- 30.0
GWTA1411	5~80			≤800	0.1 0.2 0.5	ID-L-W-H 9.0-31.5-20.5- 33.5
GWTA21A11	5~50	1000:1 2000:1 2500:1 3000:1		≤200	0.1 0.2 0.5	ID-L-W-H 6.9-25.0-11.6- 26.5
GWTA21B11	5~50			≤200	0.1 0.2 0.5	ID-L-W-H 6.7-23.5-11.5- 25.0
GWTA21CB11	5~15	1000:1 2000:1		≤50	0.2 0.5	ID-L-W-H 3.6-18.0-10.0- 19.0
GWTA21CE11				≤50		ID-L-W-H 5.0-17.0-9.2- 16.7
GWTA21CD11				≤50		ID-L-W-H 5.0-18.0-10.0- 19.0
GWTA21C11		1000:1 2000:1 2500:1		≤50		ID-L-W-H 4.5-18.0-10.0- 20.0
GWTA21CA11				≤300		ID-L-W-H 4.5-19.0-12.5- 19.0
GWTA21E11	5~20			≤200	0.1 0.2 0.5	ID-L-W-H 5-21-13.5-21.5
GWTA21F11	5~30	1000:1 2000:1 2500:1 3000:1	50 to 400	≤200	0.2 0.5	ID-L-W-H 6.7-23.9-12-25
GWTA22B11	5~80	1000:1 1500:1 2000:1 2500:1 3000:1		≤800	0.1 0.2 0.5	ID-L-W-H 8.7-26-17.5- 27.5
GWTA22D11	5~100			≤1000	0.1 0.2 0.5	ID-L-W-H 9.0-29.5-19.0-30
GWTA22E11	5~100			≤1000	0.1 0.2 0.5	ID-L-W-H 12.8-36.7-14.2- 38.5
GWTA2311	5~20	1000:1 2000:1 2500:1		≤200	0.1 0.2	ID-L-W-H 5.0-18.8-17.8- 19.5
GWTA23B11	5~80	1000:1 2000:1 2500:1 3000:1 5000:1		≤100	0.1 0.2 0.5	ID-L-W-H 6.0-25.0-21.5- 26.0
GWTA23A11	5~100			≤1000	0.1 0.2 0.5	ID-L-W-H 6.0-34.0-22.0- 36.0
GWTA32B11	5~20	1000:1 2000:1 2500:1		≤100	0.1 0.2	ID-L-W-H 5-17.6-19.3- 17.6
GWTA3311	5~80	1000:1 1500:1 2000:1 2500:1 3000:1		≤500	0.1 0.2 0.5	ID-L-W-H 6.0-28.0-28.0- 22.0
GWTA34B11	5~100			≤1000	0.1 0.2 0.5	ID-L-W-H 5.5-34.0-34.0- 23.0

FEATURES:
Current transformers for electronic watthour meters with DC-tolerance are designed for applications where AC current signals or
half wave rectified DC current signals must be
transformed accurately into a lower current signal
appropriate for micro-processor based circuits.
A new TA model can be designed and manufactured to meet the specific
design challenges of the client's specific application. The following models
are only a small sampling of the many different products which have been
and are currently being manufactured.
Application:
Electronic watthour meters according to IEC 62053 -21, -23 must
have a tolerance to DC current
SPECIFICATIONS:
Case Material: PBT Resin UL flame retardant rating 94-V0
Construction: Epoxy Encapsulated housing
Isolation Voltage: 2500 Vrms for 1 minute
Insulation Resistance: 1000 M Ohms @ 500 Vdc
Surge Withstand: 5000V(1.2/50μsstandard shock wave)
Operating Temperature:-25 to +55ºC,-40 to +85ºC
Optional Frequency: 50 to 400 Hz
RoHS compliant
CE compliant
Accuracy Class: Compliant IEC 60044-1, Class 0.1, 0.2






Tianjin Grewin Technology Co.,Ltd.