Nanocrystalline Core for Current Transformer

Made from nanocrystalline ribbon, this material is treated with various heat treatment processes to achieve high precision and excellent soft magnetic properties.

Performance & Characteristics

1. High Saturation Magnetic Induction (Bs) – Strong resistance to saturation.

2. High Permeability, high precision, high linearity, low angle difference, and low ratio difference, suitable for accuracy levels ranging from 0.5 to 0.05.

3. Lightweight and Cost-Effective – Compared to permalloy cores, it is about 1/3 lighter while offering a lower cost with high cost-performance.

4. Excellent High and Low-Temperature Performance – Operates reliably within a temperature range of -55°C to 130°C.

Application areas:

Electronic energy meter, precision power meter
Current overload protection in mechanical control
Current control in industrial automation

Performance parameters:

Basic magnetic parameters	Nanocrystalline	Permalloy
Saturation magnetic induction intensity Bs（T）	1.2	0.7
initial permeability （Gs/Oe）	50000~100000	50000~100000
Maximum magnetic permeability（Gs/Oe）	＞300000	＞200000
Coercive force（A/m）	＜1.6	＜0.8
Density（g/cm3）	7.3	8.8
Magnetic core filling coefficient	＞0.70	＞0.88

Product Brand	CORE Size [mm]			External Dimensions[mm]			Effective Area	Magnetic Circuit Length	10mA Output Voltage
	CORE Size [mm]			External Dimensions[mm]			Effective Area	Magnetic Circuit Length	10mA Output Voltage
	outside diameter	inside diameter	height	outside diameter	inside diameter	high	[cm2]	[cm]	[mV]
NC-M 131005	13	9.5	5	14.4	8.2	6.7	0.07	3.5	≥0.10
NC-M 131010	13.2	9.6	10	15	8.5	12	0.14	3.6	≥0.30
NC-M 171307	17	13	6.5	20	11.2	9.3	0.1	4.7	≥0.15
NC-M 181305	17.8	13	5	19.6	11.5	6.3	0.09	4.8	≥0.10
NC-M 191207	19	12	6.5	21.1	10.5	8.1	0.17	4.8	≥0.25
NC-M 191407	19	14	6.5	22.1	12	9	0.12	5	≥0.12
NC-M 191408	19	14	8	22.5	12.1	10.1	0.15	5.2	≥0.18
NC-M 191305	18.5	13	5	21.1	11.1	7.2	0.1	4.9	≥0.10
NC-M 201405	20	14	5	22.7	12.4	6.7	0.11	5.3	≥0.10
NC-M 201410	20	14	10	22.5	12.1	12.2	0.23	5.3	≥0.25
NC-M 211510	21	15	10	23.5	12.9	12.8	0.23	5.7	≥0.28
NC-M 211610	21	16	10	24.5	14	12.5	0.19	5.8	≥0.25
NC-M 231608	23	16	8	24.9	14	10.9	0.21	6.1	≥0.20
NC-M 261610	26	16	10	28.1	14	13	0.38	6.6	≥0.30
NC-M 252007	25	20	6.5	27.4	18.2	9.4	0.12	7.1	≥0.07
NC-M 281815	28	18	15	29.5	16.2	17	0.57	7.2	≥0.32
NC-M 302015	30	20	15	33.1	17.8	17.5	0.57	7.9	≥0.30
NC-M 322010	32	20	10	34.2	18	13.1	0.46	8.2	≥0.22
NC-M 402510	40	25	10	42.5	22.5	13	0.57	10.2	≥0.20
NC-M 402515	40	25	15	43.2	21.9	18.9	0.86	10.2	≥0.30
NC-M 503215	50	32	15	53.2	29	18.2	1.03	12.9	≥0.23
NC-M 503220	50	32	20	53.2	28.5	23.5	1.37	12.9	≥0.30
NC-M 604020	60	40	20	63	37	24	1.52	15.7	≥0.20
NC-M 644020	64	40	20	67	37	24	1.82	16.3	≥0.22

Typical Applications

Technical Specification

Product Details

Production Steps

Insulation Systems

Cobalt-iron alloys: based on magnesium oxide (MgO)
Nickel-iron alloys: based on zirconium oxide (ZrO) = HITCOAT, developed and patented by VAC

Gluing Technologies developed by VAC

Standard adhesive K-01 for maximum package density
High temperature adhesive HT-01 for applications up to 200 °C

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Nanocrystalline Core for Current Transformer

Nanocrystalline Core for Current Transformer

Made from nanocrystalline ribbon, this material is treated with various heat treatment processes to achieve high precision and excellent soft magnetic properties.

Performance & Characteristics

1. High Saturation Magnetic Induction (Bs) – Strong resistance to saturation.

2. High Permeability, high precision, high linearity, low angle difference, and low ratio difference, suitable for accuracy levels ranging from 0.5 to 0.05.

3. Lightweight and Cost-Effective – Compared to permalloy cores, it is about 1/3 lighter while offering a lower cost with high cost-performance.

4. Excellent High and Low-Temperature Performance – Operates reliably within a temperature range of -55°C to 130°C.

Application areas:

Electronic energy meter, precision power meterCurrent overload protection in mechanical controlCurrent control in industrial automation

Performance parameters:

Basic magnetic parameters

Nanocrystalline

Permalloy

Saturation magnetic induction intensity Bs（T）

1.2

0.7

initial permeability （Gs/Oe）

50000~100000

50000~100000

Maximum magnetic permeability（Gs/Oe）

＞300000

＞200000

Coercive force（A/m）

＜1.6

＜0.8

Density（g/cm3）

7.3

8.8

Magnetic core filling coefficient

＞0.70

＞0.88

Product Brand

CORE Size [mm]

External Dimensions[mm]

Effective Area

Magnetic

Circuit

Length

10mA Output

Voltage

outside

diameter

inside

diameter

height

outside

diameter

inside

diameter

high

[cm2]

[cm]

[mV]

NC-M 131005

13

9.5

5

14.4

8.2

6.7

0.07

3.5

≥0.10

NC-M 131010

13.2

9.6

10

15

8.5

12

0.14

3.6

≥0.30

NC-M 171307

17

13

6.5

20

11.2

Electronic energy meter, precision power meter
Current overload protection in mechanical control
Current control in industrial automation