Grewin CT 600V Instrument Current Transformer PCB
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Product Highlights
- Wide Current Range: Supports rated input from 60A to 4000A for diverse measurement needs.
- High Accuracy & Safety: Cold rolling silicon steel core with no air gap ensures low flux leakage and high precision.
- Flexible Customization: Customizable shell material (PBT/ABS), operating temperature, and certified options (RoHS/CE).
- Multiple Output Options: Available in 5.0A and 1.0A AC secondary outputs with various VA ratings.
- Comprehensive Certification: Compliant with IEC60044-1, RoHS, CE, and ANSI safety requirements.
- Durable Construction: Epoxy resin insulating medium ensures stability in outdoor and harsh environments.
- Proven Reliability: Backed by 20 years of manufacturing experience and ISO9001:2015 certification.
- Versatile Applications: Ideal for electronic instruments, position sensors, audio, lighting, and protection devices.
Product Attributes
- Customization
- Available
- Application
- Electronic, Instrument, Position Sensor, Audio, Lighting
- Type
- Current Transformer
- Model NO.
- gwsctz
- 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
- Single Stage Type
- Voltage Transformation Principle
- Electromagnetic Type
- Shell Material
- PBT or ABS
- Operating Temperature
- -25 to +55 C
- Rated Input
- 60-4000A
- Frequency
- 50-400 Hz
- Certification
- RoHS,CE
- Safety Requirement
- Strictly Prohibited to Open The Secondary Winding
- Transport Package
- Carton or Pallet
- Specification
- CE, ROHS
- Trademark
- Grewin
- Origin
- China
- HS Code
- 85045000
- Production Capacity
- 10000
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of Grewin CT 600V Instrument Current Transformer PCB
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Product Description
Product Description
1.Product pictures

2.Features:
Low cost
Wound cold rolling oriented silicon steel core, without air gap, uniform winded secondary winding, small flux leakage
More than 7 size
5.0,1.0Aac secondary output available
3.Applications:
Current,Power, Energy monitoring devices
Relay protection device
4.Specification:
Shell material:PBT or ABS
Operating Temperature: -25 to +55º C,-40 to +85º C optional
Operating Voltage:600Vac
Frequency: 50-400 Hz
RoHS compliant • CE-approved
Compliant ANSI
Safety requirement :strictly prohibited to open the secondary winding

5.Details of the data
| WINDOW OPENING SIZE A |
SERIES |
DIMENSIONSinch(mm) | IEC60044-1 COMPLIANT@ 50/60 Hz | ||||||||||
B |
C |
D |
E |
F |
G |
TURN RATIO | 2.5VA |
5VA |
12.5VA |
22.5VA |
50VA |
||
0.64 (16.3) |
16 |
1.99 (50.5) |
1.24 (31.5) |
1.99 (50.5) |
60:5 | 3.0 | -- | -- | -- | -- | |||
| 75:5 | 3.0 | -- | -- | -- | -- | ||||||||
| 80:5 | 3.0 | -- | -- | -- | -- | ||||||||
| 100:5 | 1.0 | -- | -- | -- | -- | ||||||||
| 120:5 | 1.0 | 1.0 | -- | -- | -- | ||||||||
| 125:5 | 1.0 | 1.0 | -- | -- | -- | ||||||||
| 150:5 | 1.0 | 1.0 | -- | -- | -- | ||||||||
| 200:5 | 0.2 | 0.5 | -- | -- | -- | ||||||||
| 250:5 | 0.2 | 0.5 | -- | -- | -- | ||||||||
1.0 (25.4) |
25 |
2.50 (69.0) |
1.75 (44.5) |
2.56 (65.0) |
50:5 | 5.0 | -- | -- | -- | -- | |||
| 60:5 | 3.0 | -- | -- | -- | -- | ||||||||
| 75:5 | 3.0 | 3.0 | -- | -- | -- | ||||||||
| 80:5 | 1.0 | 3.0 | -- | -- | -- | ||||||||
| 100:5 | 1.0 | 1.0 | -- | -- | -- | ||||||||
| WINDOW OPENING SIZE A |
SERIES |
DIMENSIONS inch(mm) | IEC60044-1 COMPLIANT | ||||||||||
B |
C |
D |
E |
F |
G |
TURN RATIO | 2.5VA |
5VA |
12.5VA |
22.5VA |
50VA |
||
1.0 (25.4) |
25 |
2.50 (69.0) |
1.75 (44.5) |
2.56 (65.0) |
120:5 | 1.0 | 1.0 | -- | -- | -- | |||
| 125:5 | 0.5 | 1.0 | -- | -- | -- | ||||||||
| 150:5 | 0.5 | 1.0 | 3.0 | -- | -- | ||||||||
| 200:5 | 0.2 | 0.5 | 1.0 | -- | -- | ||||||||
| 250:5 | 0.2 | 0.5 | 1.0 | -- | -- | ||||||||
| 300:5 | 0.2 | 0.2 | 0.5 | 1.0 | 3.0 | ||||||||
1.56 (39.6) |
39 |
4.0 (101.5) |
1.10 (27.9) |
3.61 (91.8) |
3.88 (98.6) |
0.27 (6.9) |
0.44 (11.2) |
100:5 | 1.0 | -- | -- | -- | -- |
| 150:5 | 1.0 | 1.0 | -- | -- | -- | ||||||||
| 200:5 | 0.5 | 0.5 | -- | -- | -- | ||||||||
| 250:5 | 0.5 | 0.5 | 1.0 | -- | -- | ||||||||
| 300:5 | 0.2 | 0.2 | 1.0 | -- | -- | ||||||||
| 400:5 | 0.2 | 0.2 | 0.5 | 3.0 | -- | ||||||||
| 500:5 | 0.2 | 0.2 | 0.5 | 1.0 | -- | ||||||||
| 600:5 | 0.2 | 0.2 | 0.5 | 1.0 | -- | ||||||||
| 750:5 | 0.2 | 0.5 | 0.5 | 0.5 | -- | ||||||||
| 800:5 | 0.2 | 0.2 | 0.2 | 0.2 | -- | ||||||||
| 1000:5 | 0.2 | 0.2 | 0.2 | 0.2 | -- | ||||||||
| 1200:5 | 0.2 | 0.2 | 0.2 | 0.2 | 0.5 | ||||||||
2.06 (52.3) |
52 |
4.25 (108.0) |
1.10 (27.9) |
3.88 (98.6) |
0.25 (6.4) |
0.31 (7.9) |
100:5 | 2.0 | -- | -- | -- | -- | |
| 150:5 | 1.0 | 1.0 | -- | -- | -- | ||||||||
| 200:5 | 1.0 | 1.0 | -- | -- | -- | ||||||||
| 250:5 | 0.5 | 0.5 | 3.0 | -- | -- | ||||||||
| 300:5 | 0.5 | 0.5 | 1.0 | 3.0 | -- | ||||||||
| 400:5 | 0.2 | 0.2 | 0.5 | 1.0 | -- | ||||||||
| 500:5 | 0.2 | 0.2 | 0.5 | 1.0 | -- | ||||||||
| 600:5 | 0.2 | 0.2 | 0.5 | 0.5 | 1.0 | ||||||||
| 750:5 | 0.2 | 0.2 | 0.5 | 0.5 | -- | ||||||||
| 800:5 | 0.2 | 0.2 | 0.5 | 0.5 | -- | ||||||||
| 1000:5 | 0.2 | 0.2 | 0.2 | 0.5 | -- | ||||||||
| 1200:5 | 0.2 | 0.2 | 0.2 | 0.2 | 0.5 | ||||||||
| 1500:5 | 0.2 | 0.2 | 0.2 | 0.2 | 0.5 | ||||||||
2.50 (63.5) |
63 |
5.15 (130.9) |
1.10 (27.9) |
4.76 (121 |
5.4 ) (137) |
0.28 (7.1) |
0.65 (16.5) |
100:5 | 3.0 | -- | -- | -- | -- |
| 150:5 | 1.0 | 3.0 | -- | -- | -- | ||||||||
| 200:5 | 0.5 | 1.0 | -- | -- | -- | ||||||||
| 250:5 | 0.5 | 1.0 | 1.0 | -- | -- | ||||||||
| 300:5 | 0.5 | 0.5 | 1.0 | 3.0 | -- | ||||||||
| 400:5 | 0.2 | 0.2 | 0.5 | 1.0 | -- | ||||||||
| 500:5 | 0.2 | 0.2 | 0.5 | 1.0 | -- | ||||||||
| 600:5 | 0.2 | 0.2 | 0.5 | 0.5 | 1.0 | ||||||||
| 750:5 | 0.2 | 0.2 | 0.5 | 0.5 | 1.0 | ||||||||
| 800:5 | 0.2 | 0.2 | 0.5 | 0.5 | 1.0 | ||||||||
| 1000:5 | 0.2 | 0.2 | 0.2 | 0.5 | 1.0 | ||||||||
| 1200:5 | 0.2 | 0.2 | 0.2 | 0.2 | 0.5 | ||||||||
| 1500:5 | 0.2 | 0.2 | 0.2 | 0.2 | 0.5 | ||||||||
| 1600:5 | 0.2 | 0.2 | 0.2 | 0.2 | 0.5 | ||||||||
3.25 (82.6) |
82 |
5.75 (146.0) |
1.25 (31.7) |
200:5 | 1.0 | 1.0 | -- | -- | -- | ||||
| 250:5 | 0.5 | 1.0 | 3.0 | -- | -- | ||||||||
| 300:5 | 0.5 | 0.5 | 1.0 | 3.0 | -- | ||||||||
| 400:5 | 0.2 | 0.5 | 1.0 | 1.0 | -- | ||||||||
| 500:5 | 0.2 | 0.2 | 0.5 | 1.0 | 3.0 | ||||||||
| 600:5 | 0.2 | 0.2 | 0.5 | 1.0 | 1.0 | ||||||||
| 750:5 | 0.2 | 0.2 | 0.2 | 0.5 | 1.0 | ||||||||
| WINDOW OPENING SIZE A |
SERIES |
DIMENSIONS inch(mm) | IEC60044-1 COMPLIANT @ 50/60Hz | ||||||||||
B |
C |
D |
E |
F |
G |
TURN RATIO | 2.5VA |
5VA |
12.5VA |
22.5VA |
50VA |
||
3.25 (82.6) |
82 |
5.75 (146.0) |
1.25 (31.7) |
800:5 | 0.2 | 0.2 | 0.2 | 0.5 | 1.0 | ||||
| 1000:5 | 0.2 | 0.2 | 0.2 | 0.5 | 0.5 | ||||||||
| 1200:5 | 0.2 | 0.2 | 0.2 | 0.5 | 0.5 | ||||||||
| 1500:5 | 0.2 | 0.2 | 0.2 | 0.5 | 0.5 | ||||||||
| 1600:5 | 0.2 | 0.2 | 0.2 | 0.5 | 0.5 | ||||||||
| 2000:5 | 0.2 | 0.2 | 0.2 | 0.2 | 0.5 | ||||||||
| 2500:5 | 0.2 | 0.2 | 0.2 | 0.2 | -- | ||||||||
| 3000:5 | 0.2 | 0.2 | 0.2 | 0.2 | -- | ||||||||
| 3200:5 | 0.2 | 0.2 | 0.2 | 0.2 | -- | ||||||||
| 4000:5 | 0.2 | 0.2 | 0.2 | 0.2 | -- | ||||||||
4.25 (108.0) |
1A |
6.75 (171.5) |
1.25 (31.7) |
200:5 | 1.0 | 1.0 | -- | -- | -- | ||||
| 250:5 | 1.0 | 1.0 | -- | -- | -- | ||||||||
| 300:5 | 0.5 | 0.5 | 1.0 | 3.0 | -- | ||||||||
| 400:5 | 0.5 | 0.5 | 1.0 | 1.0 | 3.0 | ||||||||
| 500:5 | 0.2 | 0.2 | 0.5 | 1.0 | 3.0 | ||||||||
| 600:5 | 0.2 | 0.2 | 0.5 | 0.5 | 1.0 | ||||||||
| 750:5 | 0.2 | 0.2 | 0.2 | 0.2 | 0.5 | ||||||||
| 800:5 | 0.2 | 0.2 | 0.2 | 0.2 | 0.5 | ||||||||
| 1000:5 | 0.2 | 0.2 | 0.2 | 0.2 | 0.5 | ||||||||
| 1200:5 | 0.2 | 0.2 | 0.2 | 0.2 | 0.5 | ||||||||
| 1500:5 | 0.2 | 0.2 | 0.2 | 0.5 | 0.5 | ||||||||
| 1600:5 | 0.2 | 0.2 | 0.2 | 0.5 | 0.5 | ||||||||
| 2000:5 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | ||||||||
| 2500:5 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | ||||||||
| 3000:5 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | ||||||||
| 3500:5 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | ||||||||
| 4000:5 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | ||||||||

Company introduction
1.certification
We have passed ISO9001:2015,CE,SGS approval and IEC report

2.Company profile
Tianjin Grewin is concentrating on transformers for 20 Years and complianted by ISO9001:2015,CB,IEC CB,CE etc.We're always pay great attention to its business philosophy "Quality and Honesty First".GWSCTC660A series retro-fit (split-core) current transformer has been specially designed to facilitate their installation in new or already existing net works. They may be installed without opening any cable or bus-bar circuit. An internal precision resistor across the secondary winding of the CT provides a low safe voltage output. It can save time and the installation costs.windely used in communications,electronics,meters,industrial control,medical equipments and other fields.We are also a provider of power meters and instruments locators. 85% of its products exported to America, Europe, and Asia etc.We sincerely invite you to join us to create a bright future.
Within 10 working days after received related prepayment or L/C.
4.Payment terms:
(1)T/T 100% or 50% deposit by T/T in advance, balance amount to be paid 7 days before
delivery.
(2) By irrevocable L/C at sight, to be issued immediately against confirmed order.
(3)Payment by T/T, if order amount is less than USD 20,000.
5.Production
The following picture showed you about all finished transformer production line and package with export standard carton and strong pallets:
6.Warranty:
(1)We provide 1 year warranty.
(2)If the product is defective, please notify us within 3 days of delivery.
(3)All products must be returned on their original condition, in order to qualify for a refund or exchange of goods
7.Why choose us?
Quality and honest first!
A. Flexible service for diffierent transformers with high efficiency performance.
B. Over 40 years experience of transformer designing and producing.
C.100% test of every single product we produce from incoming material checking.
D. UL, CE, ISO9001:2008
E. We offer custom-made transformers, OEM and ODM are welcome
F. We deliver the quality you expect at consistently competitive prices
G.Transformer quality lifetime:10 Years.
H.Specialty Sales service:5 -10 Years
8.Flow chart of trading activities:
NO |
Step |
Days need |
1 |
Request for quotation |
1 day |
2 |
Making quotations |
1 day |
3 |
Offer and counter offer |
3 days |
4 |
Sending and receiving samples |
3-10 days |
5 |
Sample confirmation |
3 days |
6 |
Placing a firm order |
1 day |
7 |
Paying and receiving the down payment |
1-4 day |
8 |
Factory production & Quality inspection |
15-20 days |
9 |
Paying and receiving the balance |
4 days |
10 |
Delivery of goods |
1 days |
9.contact
About the Supplier
This supplier has been audited by BV. Verify the report on the official BV website with ID "MIC-ASR246099". Items marked "" are certified.
Company Profile
Tianjin Grewin Group is concentrating on transformers for 25 Years and complianted by ISO9001: 2015, CB, IEC CB, CE etc. We're always pay great attention to its business philosophy "Quality and Honesty First". Grewin is specialized in the design and manufacture of wound components such as transformer, current sensors, chokes etc. Windely used in communications, electronics, meters, industrial control, medical equipments and other fields. We are also a provider of power meters and tape and winding machines. 85% of its products exported to America, Europe, and Asia etc. We sincerely invite you to join us to create a bright future.
Tianjin Grewin Technology Co. Ltd. In Tianjin City which is very close to XinGang Port and BinHai International Airport, which provide timely and convenient access to transportations for customers. It's a professional leading and a main exporter of a wide variety of electronics components in north of China.
All of our products stand for top quality in this industry and are enjoying very high honor. We have abtained ISO9001, CE, SGS approval and IEC test report.
Our core business are including following:
1. Toroidal Transformers
2. Current Transformers
3. EI laminated Transformers
4. Ferrite Core Transformers
5. Coil WIinding Machines
6. Taping Machines
7. Cable Fault Locators
8. Pipe locator
All staff in our company would like to appreciate for your attention to our products. Welcome to give us your valuable suggestions about products and services. You can be our sole agent in your country and benefit from more preferable prices. OEM orders are welcome.
About Our Factory & Business Background
- Address
- 2# MeiNian Plaza No.16 DongTing Road,Hexi Distr,300222,Tianjin China
- Terms of Payment
- LC, T/T, D/P, PayPal, Western Union, Small-amount payment, Money Gram
- International Commercial Terms(Incoterms)
- EXW, CFR, CIF, FAS, DDP, DAP, CIP, CPT, Others, FCA
- Average Lead Time
-
Peak Season Lead Time: within 15 workdays
Off Season Lead Time: within 15 workdays - Nearest Port
- TIANJIN XINGANG SEA PORT, SHANGHAI SEA PORT, QINGHUANGDAO SEA PORT
Our Production Capability & Technical Expertise
Our Industry Experience & Global Business Record
- Export Year
- 2006-08-09
- Main Markets
- North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
FAQ
- What is the rated input current range?
- The rated input current ranges from 60A to 4000A, supporting various measurement requirements.
- What certifications does the product have?
- The product is RoHS and CE approved, compliant with IEC60044-1, and meets ANSI safety requirements.
- Can the shell material be customized?
- Yes, the shell material can be customized to PBT or ABS based on specific requirements.
- What is the warranty period?
- We provide a 1-year warranty. Defective products must be notified within 3 days of delivery.
- What are the payment terms?
- Payment options include T/T (100% or 50% deposit), Irrevocable L/C at sight, or T/T for orders under USD 20,000.
- What is the lead time for production?
- Production and quality inspection typically take 15-20 days after receiving the down payment.
- Is OEM/ODM service available?
- Yes, we welcome OEM and ODM orders and offer custom-made transformers with flexible services.
Send your message to this supplier
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Product Groups
- Wire Welding Machine
- Tororidal transformer winding machine
- Parallel Winding Machine
- Fully Automatic Hook Winding Machine
- Coil Winding Machine
- Cable Fault locators Testers
- current transformer
- Toroidal Transformer Test Equipment
- toroidal transformer
- Ferrite magnetic frequency transformer
- sator winding machine
- Automatic Copper Wire Stripping Machine
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