
CT07 series , CT07D 20A/20mA class 0.5 Current transformer for working frequency 50-400Hz , energy meter, power transducer
Features:
1. Good voltage separation ability and insulation property
2. It is applicable for working frequency 50-400Hz
3. With burnt-resistant PBT case and epoxy resin, current transformer can reach insulation resistance of 500VDC ≥100mΩ, electrical strength 4000VAC,1mA 60S.
4. Under the ambient temperature -25℃ ~75℃, CT07 serires are main applied in electronics energy meter, power transducer and other electric meters.
For our current transformers, which are produced by using high permeability permalloy core or good quality laminated silicon steel core, inflammable epoxy resin and case with our high precision toroidal winding machine & current transformer testers, steady quality and reliable safety, are widely applied in electronic energy meter, power transducer, RTU, electronical monitoring meter, power factor compensator, digital meter, motor control, industrial control system, electrical meter equipment, etc.
DIM(mm)P/N | CT07A | CT07D | CT07E | CT07F |
DIM | ||||
A | 23.5 | 26 | 37 | 49 |
B | 12.5 | 17 | 14 | 20 |
C | 25 | 29 | 39 | 54 |
D | 7 +/-0.2 | 9 +/-0.2 | 13 +/-0.2 | 18.5 +/-0.2 |
E | 15 | 15 | 25 | 29.5 |
F | 18.5 | 18.5 | 32.5 | 37 |
G | 10.5 | 15 | 11 | 17.5 |
H | 1 | 1 | 1 | 1 |
I | 6 | 6 | 6 | 6 |
Performance & Specification | ||||||||
Part No. | Rated primary current (A) | Max primary current (A) | Rated secondary current (mA) | Current ratio | Output voltage (mV) | Accuracy class | Outline | |
CT07A | 5 | 40 | 2.5 | 2000:1 | 100 | 0.2, 0.5 | CT07A | |
10 | 40 | 4 | 2500:1 | 100 | 0.2, 0.5 | |||
20 | 40 | 10 | 2000:1 | 100 | 0.1, 0.2, 0.5 | |||
CT07D | 10 | 60 | 4 | 2500:1 | 100 | 0.1, 0.2, 0.5 | CT07D | |
20 | 60 | 10 | 2000:1 | 100 | 0.1, 0.2, 0.5 | |||
40 | 60 | 20 | 2000:1 | 100 | 0.1, 0.2, 0.5 | |||
CT07E | 60 | 120 | 24 | 2500:1 | 100 | 0.2, 0.5 | CT07E | |
80 | 120 | 32 | 2500:1 | 100 | 0.2, 0.5 | |||
120 | 120 | 48 | 2500:1 | 100 | 0.1, 0.2, 0.5 | |||
CT07F | 100 | 200 | 40 | 2500:1 | 100 | 0.2, 0.5 | CT07F | |
100 | 200 | 50 | 2000:1 | 100 | 0.2, 0.5 | |||
200 | 200 | 80 | 2500:1 | 100 | 0.1, 0.2, 0.5 |
For example
CT07D 20A/20mA Class 0.5
ELECTRICAL CHARACTERSTIC: | ||||||
NO. | ITEM | MEASURED POINT | TECHNICAL DATA | REMARK | ||
1 | Normal Primary Current | A--B | 20A | |||
2 | Normal Secondary current | 2--1 | 20mA | |||
3 | Maximum Primary current | 2V±10% | IN=20A RL=100Ω | |||
4 | Turns ratio | |||||
5 | Nominal working frequecncy | 50Hz--60Hz | ||||
6 | Load Resistance | 10Ω | ||||
7 | DC Resistance | 45Ω MAX | 25℃ | |||
8 | Accuracy | 0.50% | ||||
9 | HI-POT | P-S | AC3000V 60S 1mA |
MATERIAL LIST: | |||||||
NO. | ITEM | MATERIALS | REMARK | ||||
1 | CORE | φ14*22*10 Z11 | |||||
2 | CASE | CT07D PBT | E59481(S)/ | ||||
3 | WIRE | UEW-2 Ø0.15mm 130℃ | E85640 | ||||
4 | EPOXY | 3300A/B / 910A/B | E218090 | ||||
5 | PIN | φ1.0*25 | |||||
6 | TAPE | 1mil*8mm CT-280 130℃ | E165111 |
Shenzhen Greenfair Electronics Co., Limited
Greenfair Electronics is one of the key electric enterprises in Shenzhen., professional in design and manufacture High Frequency Transformer, Power Transformer, Inductors, EMI equipment, SMT Magnetic Components, Network and Telecommunication Transformers, Automotive and Telecommunication Applications, etc., provide PCB design, electric circuit design. Moreover, besides standard products, we also provide an extensive range of customization services in order to cater for your special orders.
We have about 3800M production area with annual output up to
50,000,000pcs. And we have a labor force which has grown to more
than 400, and own a professional group more than 30 members who
hammer at technology and engineering craft.
We earned international approval from CE, UL, CQC, CSA, VDE and awarded the ISO9001:2000 Quality Management Certificate, Also, our company is well equipped with complete equipment and advanced assembly lines that have a enviable quality control and assurance system. We strongly believe that we could provide high quality produces and the best customer satisfaction service as well as the best competitive price to our customers at any time.
The key of our success is quality and customer service. We have a
highly efficient team to deal with inquiries from customers. We are
experienced in selling goods to Europe and Asia and enjoy a good
reputation among clients.
We are seeking sincere cooperation with all interested companies.