Ferrite Core High Frequency Current Transformer
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Product Highlights
- High Frequency Performance: Operating frequency higher than 200kHz with low leakage inductance and high efficiency.
- Customization Options: OEM and ODM welcome; custom ferrite transformers available for various power ranges.
- Global Certifications: Passed ISO9001:2015, CE, SGS, UL, CUL, and CCC approvals for quality assurance.
- Anti-Interference Design: Strong anti-interference capabilities with low distributed capacitance and attenuation.
- 100% Quality Testing: Every transformer undergoes 100% testing before shipment to ensure reliability.
- Wide Application Scope: Suitable for PCB circuits, computers, TVs, monitors, scanners, and printers.
- Competitive Pricing: Delivers expected quality at consistently competitive prices with fast delivery.
- Durable Core Materials: Uses high magnetic flux and low loss magnetic materials for superior performance.
Product Attributes
- Customization
- Available
- Application
- Power, Electronic, Instrument, Lighting, Rectifier, Audio, for PCB Circuits, Computer, TV, Monitor
- Phase
- Single
- Model NO.
- GWEFD12 EFD15 EFD20etc GWRM4, RM5, RM6, RM8etc
- Core
- Ee Er EPC Pq
- Cooling Method
- Dry-type Transformer
- Winding Type
- Multi-winding Transformer
- Certification
- ISO9001-2000, ISO9001, CCC
- Usage
- Single-phase Transformer
- Frequency Characteristics
- High Frequency
- Shape of Core
- Etd,RM
- Brand
- Grewin
- Type
- High Frequency Transformer
- Coil Number
- High Magnetic Flux and Low Loss Magnetic Materials
- Indicative Power Capacity
- UL Insulation System for Class B (130), F (155), H
- Transport Package
- Export Standard Carton with Strong Pallet
- Specification
- VDE, CE
- Trademark
- Grewin High Frequency Transformer
- Origin
- Tianjin
- HS Code
- 85043190
- Production Capacity
- 50000 /Month
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 Ferrite Core High Frequency Current Transformer
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Product Description
We have passed ISO9001:2015,CE,SGS approval and IEC report
ETD type Transformer Parameters
| HORIZONTAL COILFORMER DIMENSIONS (mm) | |||||||||||
TYPE |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
ETD29 |
35.3 |
21.6 |
11.8 |
10 |
6.4 |
25 |
3.5 |
35.2 |
21.2 |
19.4 |
0.7 |
ETD34 |
39.6 |
25 |
13.4 |
11.4 |
- |
34.6 |
4.5 |
42.8 |
23.4 |
20.9 |
1 |
ETD39 |
44.6 |
28.9 |
15.1 |
13.1 |
- |
37 |
4.5 |
47.8 |
28.2 |
25.7 |
1 |
ETD44 |
49.6 |
31.9 |
17.7 |
15.5 |
- |
39.9 |
4.5 |
52.2 |
32 |
29.5 |
1 |
ETD49 |
54.5 |
35.7 |
19.2 |
17 |
- |
42.4 |
4.5 |
57.2 |
35.2 |
32.7 |
1 |
ETD54 |
61.5 |
39.15 |
22 |
19.8 |
- |
46 |
4.5 |
61.5 |
39.3 |
36.8 |
1 |
ETD59 |
66.9 |
42.65 |
24.9 |
22.4 |
- |
49.2 |
4.5 |
66.4 |
43.7 |
41.2 |
1 |



1).Features:
Has a strong anti-interference, distributed capacitance, impedance, attenuation of low transmission, firm
structure,can fine-tune the inductance, etc., are widely used in fax
machines, PBX.
2). Applicable frequency range: 20 to 100kHz :
Operating frequency: higher than 200kHz
High magnetic flux and low loss magnetic materials
With low leakage inductance and high efficiency .
3).Applications:
PCB circuits, computer, TV, monitor, scanner, duplicator, mobile adapters, printer and other equipments and instruments.
UL insulation system for Class B (130), F (155), H (180)
4). Can make other customized Ferrite transformers:
Power range: core type using N67 grade material
<5: RM4, P11/7, EF12.6 and U10
5 to 10: E (F) 16, RM5 and P14/8
10 to 20: RM6, E (F) 20, P18, U15 and EFD15
20 to 50: RM8, P22, RM10 ETD29, E25 and EFD20
50 to 100: ETD29, ETD34, RM12, P30 and EFD25
100 to 200: ETD34, ETD39, ETD44, P36, E30, E42 and EFD30
200 to 500: ETD44, ETD49 and E55
>500: ETD54, ETD59 and E65
1.UL, CUL, CE, ISO9001:2015
2.We offer custom-made transformers, OEM and ODM are welcome
3.We deliver the quality you expect at consistently competitive prices
4.Transformer quality lifetime:10 Years.
5.Specialty Sales service:5 -10 Years
6.Transformers Test: 100% test before the shipment
About us:
1). Tianjin Grewin Technology Co.,ltd. has always laying great emphasis on our core business philosophy "Quality and Honesty First ".
Grewin Mission: Growing together side by side,Mutual success hand in hand.
Production:

2).Terms of Shipment:
Within 10 working days after received related prepayment or L/C.
3).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.
4).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 |
Contact:
Cathy
Tianjin Grewin Technology Co.,Ltd.
Website:transformer.en.made-in-china.com
Tel:86-22-84943756
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 certifications does the transformer have?
- The product has passed ISO9001:2015, CE, SGS, UL, CUL, and CCC approvals.
- Is OEM and ODM service available?
- Yes, we offer custom-made transformers and welcome OEM and ODM services.
- What is the operating frequency range?
- The applicable frequency range is 20 to 100kHz, with an operating frequency higher than 200kHz.
- 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.
- How long is the production lead time?
- Factory production and quality inspection take 15-20 days after receiving the down payment.
- What types of cores are used?
- We use Ee, Er, EPC, PQ, ETD, and RM core types depending on the power range and application.
- What is the warranty period?
- The transformer quality lifetime is 10 years, with specialty sales service for 5-10 years.
- Where is the company located?
- Tianjin Grewin Technology Co., Ltd. is located in Tianjin, China.
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Product Groups
- Wire Welding Machine
- Tororidal transformer winding machine
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- 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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