ALH-0.66 III series current transformerDetailed product description：

ALH-0.66 III series current transformers are commonly used for control, protection, and measurement due to their innovative magnetic circuit design, advanced compensation methods, exquisite craftsmanship, safe and reliable performance, compact and beautiful appearance.
The shell is made of high-strength flame-retardant PC, with a fully enclosed structure and a flame-retardant rating of V1;
High quality oriented silicon steel sheets are selected for the internal iron core;
Vertical square hole type, suitable for single or multiple vertical busbars to pass through;
Mainly used in situations where three-phase busbars are arranged vertically, thus avoiding the inconvenience caused by secondary outgoing lines being blocked by adjacent busbars or transformers;
High precision and large capacity;
Fixed and easy to fix, optimized wiring, meeting the requirements of energy metering in power supply systems

Model, specification, size

Dimensions, specifications, and models	Overall dimensions			Perforation size			installation dimensions	Installation method
	W	H	D	A	E	Φ	M
20Ⅲ	seventy-two	seventy-six	thirty-six	eleven	twenty-one	twenty-one	forty	A.J
30Ⅲ	seventy-three	ninety-eight	fifty	twelve	thirty-two	twenty-six	forty	A.J
50Ⅲ	seventy-five	one hundred and twenty	fifty-six	sixteen	fifty-two	/	/	J
60Ⅲ	one hundred	one hundred and forty-five	fifty-five	thirty-two	sixty-two	/	/	J
80Ⅲ	one hundred	one hundred and sixty-four	fifty-five	thirty-two	eighty-two	/	/	J

Technical Specifications

Current once	75～5000A
secondary current	5A、1A
Rated voltage	AC 660V
rated power	50～60Hz
ambient temperature	-30℃～＋70℃
Maximum temperature resistance	120℃
altitude	≤3000m
Common frequency withstand voltage	3000V 1min 50Hz (between shell and secondary coil)
insulation class	E

Technical Specifications

Specification Model

20Ⅲ

30Ⅲ

50Ⅲ

sixty

80Ⅲ

100Ⅲ

120Ⅲ

130Ⅲ

The specifications and number of mother busbars that can be used

20×10 1 piece

30×10 1 piece

50×10 1 piece

60×10 1 piece

80×10 1 piece

100×10 1 piece

120×10 1 piece

130×10 1 piece

accuracy class

zero point five

one

zero point two

zero point five

zero point two

zero point five

zero point two

zero point five

zero point two

zero point five

zero point two

zero point five

zero point two

zero point five

zero point two

zero point five

rated current ratio

Rated capacity (VA)

75/5

two point five

two point five

100/5

two point five

two point five

150/5

two point five

five

200/5

five

five

250/5

five

300/5

five

ten

400/5

ten

ten

ten

ten

ten

500/5

ten

ten

ten

ten

ten

600/5

ten

ten

ten

ten

ten

750/5

ten

ten

ten

ten

ten

800/5

ten

ten

ten

ten

ten

ten

ten

ten

1000/5

fifteen

fifteen

fifteen

fifteen

fifteen

1200/5

twenty

twenty

twenty

twenty

twenty

1500/5

twenty

twenty

twenty

twenty

twenty

2000/5

forty

forty

forty

forty

forty

2500/5

forty

forty

forty

forty

3000/5

forty

forty

forty

forty

4000/5

forty

forty

forty

5000/5

forty

forty

forty

150/1

two point five

two point five

two point five

200/1

five

five

five

250/1

five

five

five

300/1

five

five

five

400/1

ten

ten

ten

ten

500/1

ten

ten

ten

ten

ten

600/1

ten

ten

ten

ten

ten

ten

750/1

ten

ten

ten

ten

ten

800/1

ten

ten

ten

ten

ten

1000/1

ten

ten

ten

ten

ten

1200/1

twenty

twenty

twenty

twenty

twenty

1500/1

twenty

twenty

twenty

twenty

twenty

2000/1

twenty

twenty

twenty

twenty

twenty

2500/1

twenty

twenty

twenty

3000/1

twenty

twenty

twenty

4000/1

twenty

twenty

twenty

5000/1

twenty

twenty

twenty

1. Indicate the model, specifications, current ratio, accuracy level, and secondary rated capacity of the transformer
2. Indicate the installation method. (If not specified, our company will provide according to our own regulations)
3. Special specifications can be customized.

ALH-0.66 III series current transformer