TR Open Close Low-Voltage Distribution System High-Precision Split Iron Core Current Transformer CT1a~50A

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Product Description

Basic Information

Model NO.
TRFK-10C-3
Phase
Single
Operation Condition
Outdoor
Usage
Protection, Measurement
Winding Form
Small Fixed Type
Insulating Medium
Common Insulating Materials
Installation
Active Type
Magnetic Circuit Structure
Combined Type
Transformation Principle
Electromagnetic Type
Rated Primary Current
1A~50A
Rated Secondary Current
0.5mA~50mA
Overload
1.2 Times
Aperture
8.5mm
Origin
China
HS Code
850450

Packaging & Delivery

Package Size
10.00cm * 10.00cm * 10.00cm
Package Gross Weight
0.500kg

Product Description

Main Characteristics

The buckle structure is fixed and the stability is good. Adopt high magnetic permeability core, good linearity and high sensitivity. Terminal output, easy to install.

Applications

Rural power grid reconstruction project, Online environmental monitoring, Smart fire-fighting power consumption, Smart power consumption system, Power quality analysis and electrical equipment signal collection.

Electrical Parameters

Electrical parameters
TypeTRFK-10C
Rated primary current1A~50A
Rated secondary current0.5mA~50mA
Overload1.2 times
Secondary load≤20Ω
Aperture8.5mm
Ratio error@rated primary±0.5%, ±1.0%
Phase error@rated primary≤150′
Working frequency50/60 Hz
Rms voltage for AC isolation test3kV AC/1mA 10s
Operating ambient temperature-25ºC~+75ºC
WeightAround 130g

Accuracy Parameters

Accuracy parameters
Input current(A) 5%In 20%In 50%In 100%In 120%In
Ratio error(%) ±0.75 ±0.5 ±0.5 ±0.5 ±0.5
Phase error(′) ≤180 ≤150 ≤150 ≤150 ≤150
Current Transformer 1
Current Transformer 2

Installation Instructions

Warning: Please use professional and appropriate protective equipment to prevent electric shock and ensure safety.

Step 1: Before installing, ensure that the circuit is in the state of power failure, or live installation operation, professional personnel are required.

Step 2: Open the protective cover of current transformer, connect the wire with the terminal output of the current transformer and connect it to the port of the measuring equipment, and ensure the circuit is closed.

Step 3: Open the transformer latch and prepare for installation.

Step 4: Place the cable inside the hole of current transformer. Ensure that the current direction of the cable is consistent with the arrow on the current transformer. Lock the latch again, and fix the cable with the nylon ties to hook both ends of the transformer to prevent sliding.

Fig 1

Fig.1: Connect S1 and S2

Fig 2

Fig.2: Open latch

Fig 3

Fig.3: Lock and fix

Detail 1
Detail 2
Detail 3
Detail 4
Detail 5
Detail 6
Detail 7
Detail 8
Detail 9
Technical Drawing
App 1
App 2

Frequently Asked Questions

What is the main application of the TRFK-10C-3 current transformer?
It is primarily used for protection and measurement in rural power grid reconstruction, environmental monitoring, and smart power consumption systems.
Can this model be installed outdoors?
Yes, the TRFK-10C-3 is designed for outdoor operation conditions with a durable buckle structure.
What is the aperture size for the cable?
The aperture size is 8.5mm, making it suitable for standard low-voltage distribution cables.
What is the rated primary current range?
The rated primary current range is from 1A to 50A.
What is the accuracy class of this current transformer?
It offers high precision with ratio errors of ±0.5% and ±1.0% at rated primary current.
Is live installation possible?
While live installation is possible due to its split iron core design, it must be performed by professional personnel using appropriate protective equipment.

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