Split-Core CT SCTK681B Series Cable-Free Installation for Motor Measurement and HVAC

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Split-Core CT SCTK681B Series  Cable-Free Installation for Motor Measurement and HVAC
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Features
Specifications
Current Range: 5~630A
Output: 0-500mA Or 0.333VAC
Class: 0.5、1.0、3.0
Color: Transparent
Coil: Permalloy Core
Customizable: Yes
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Split Core Current Transformer for HVAC

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Split Core CT cable-free installation

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SCTK681B motor measurement CT

Basic Infomation
Place of Origin: China
Brand Name: Shinhom
Certification: RoHS
Model Number: SCTK681B Series
Payment & Shipping Terms
Packaging Details: Carton
Delivery Time: 4~8 Weeks
Payment Terms: T/T
Supply Ability: 10000/MONTH
Product Description

The SCTK681B series of split core current transformer are designed for fast and easy installation.The split core design permits non-contact current measurements through magnetic field induction without requiring that the primary wire be taken offline and disconnected for CT installation.This method permits a safer,easier and portable current measurement. An internal precision burden resistor across the secondary winding of the CT provides a safe low voltage output and permits safe opening of the secondary

Features:

  • Test range: 5 to 630A AC input
  • Output of 0 to 500mA, 0 to 0.333V
  • Iron core is divisible, with high accuracy and low magnetic circuit loss
  • Elegant appearance, small volume, light weight, openable, easy installation
  • It is convenient to install, need not to disassemble the bus, can be operated under live condition, and will not affect customers’ normal using

Applications:

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

Mechanical Parameter

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

Electrical Parameter

Frequency 50Hz-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

Type selection

P/N Rated Input
(A)
Output (mA/V) Accuracy Dimensions(mm)
Ø0 A B C
SCTK681B-010

5-75A

(5,10,20,50,75)

0-50mA

0.333V

0.5,1.0,3.0 10 41.5 30 26.5
SCTK681B-016

5-150A

(5,10,50,100,150)

0-100mA

0.333V

0.5,1.0,3.0 16 53 36 30.5
SCTK681B-024

10-250A

(10,50,100,200,250)

0-200mA

0.333V

0.5,1.0,3.0 24 70 51.5 39.0
SCTK681B-035

10-630A

(20,100,250,400,600)

0-500mA

0.333V

0.5,1.0,3.0 35 84 65 41.0

 Split-Core CT SCTK681B Series  Cable-Free Installation for Motor Measurement and HVAC

Notes: Product specifications can be customized

FAQ

Q: How to choose between 0.333V and 0-500mA outputs?

A: 0.333V output is a low-voltage signal, suitable for electronic energy meters, PLCs, and voltage-input measurement instruments. 0-500mA output is a current signal, suitable for control systems and traditional measurement equipment that require current signals. Please choose based on your measurement equipment input interface.

Q: What is the function of the built-in precision resistor?

A: The secondary winding has a built-in precision parallel resistor. It converts the current signal directly into a safe low-voltage output (0.333V) or standard current signal (0-500mA), eliminating the need for external sampling resistors. It also allows safe open-circuit operation on the secondary side, improving operational safety.

Q: What about the accuracy and core loss of this product?

A: This product uses a high-precision openable core design with low core loss, ensuring high-accuracy current measurement across the entire measuring range, meeting various industrial and power monitoring application requirements.

Q: How to apply for samples? What is the lead time?

A: You can submit a sample application through our website or email. Please provide your company information and target model. Samples are free of charge and will be shipped within 3-5 working days. Mass order lead time is generally 2-8 weeks.

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Get in touch with us
Contact Person : Jack wang
Tel : 13909218465
Fax : 86-029-87851840
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