Test range: 5 to 630A AC input, output of 0 to 0.333V, 0 to 500mA
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.

Applications:

Relay protection device.
Current and power measurement for electric motors, lighting, air compressor,heating and ventilation system, air-condition equipment and automation – control system.
Current measurement, monitoring and protection for electrical wiring and equipment.

Electrical Parameter

Frequency	50-2KHz
Rated Input	5A-630A
Measuring range	10%In-130%In
Rated Output	0.333V(AC) or 0-500mA
Ratio	≤± 1.0%
Phase angle	≤ ±60min
Dielectric strength	2.5KV/1mA/1min
Insulation Resistance	DC500V/100MΩmin

Mechanical Parameter

Case	PA /UL94-V0
Bobbin	PBT
Core	Silicon steel
Internal structure	Epoxy
Construction	Tie
Operating Temp	－25℃～＋75℃
Operating Humidity	≤85%
Output Connection	UL1015 20AWG Wire(twinsted wire) 2.5m

Type selection

P/N

Rated Input

(A)

Output (mA/V)

Accuracy

Dimensions(mm/inch)

SCTK681A-005

5-20A

(5,8A,10,15,20)

0-25mA

0.333V

0.5,1.0,3.0

5.0

(0.20)

31.5

(1.24)

19.5

(0.77)

21.0

(0.83)

SCTK681A-010

5-75A

(5,10,20,50,75)

0-50mA

0.333V

0.5,1.0,3.0

10.0

(0.39)

41.0

(1.61)

24.0

(0.94)

26.5

(1.04)

SCTK681A-016

5-150A

(5,10,50,100,150)

0-100mA

0.333V

0.5,1.0,3.0

16.0

(0.63)

45.5

(0.22)

29.0

(1.14)

31.5

(1.24)

SCTK681A-024

10-250A

(10,50,100,200,250)

0-200mA

0.333V

0.5,1.0,3.0

24.5

(0.96)

65.0

(2.56)

45.0

(1.77)

40.0

(1.57)

SCTK681A-035

10-630A

(20,100,250,400,600)

0-500mA

0.333V

0.5,1.0,3.0

35.7

(1.41)

81.5

(3.21)

57.0

(2.24)

51.0

(2.01)

Notes: Product specifications can be customized

Product Tags:

ferrite core transformer calculation

transformer magnetic core

dual core current transformer

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