Current Transformer

LMK Type Current Transformer

Item No.: LMK
Can be used to test, control, display and record the operation of electrical equipment.
Description
Description
Introduce
 
In order to protect equipment from damage, LMK3 series current transformers are used in AC circuits with a rated voltage below 720V and a frequency of 50-60Hz.
This product can also be used in matching mine transformers.
 
Applications
Current measurement, monitoring and piotection for electrical wiring and equipment.
Current and power measurement for electric motors, lighting,air compressor, heating and ventilation system.
Air-condition equipment and Current, power and energy monitoring device.
Relay protection device.
Features
Safe, easy to install, portable.
Wide inner window, allowing clamping of big cables or bus-bars.
Wide range of sizes to accommodate all the existing installations.
Technical Parameter

 

Electrical Parameter Mechanical Parameter
Frequency 50/60Hz Case PC/UL94-V0
Rated Input 1A-5000A Bobbin PBT
Measuring range 5%In-120%In Core Silicon steel
Rated Output 1A,5A Construction Screw
Ratio Voltage 0.72KV (AC) Operating Temp -25℃~+75℃
Dielectric strength 3.0KV/1mA/1min Operating Humidity ≤85%
Insulation Resistance DC500V/100MΩ min Output Connection Terminal

 

Specification

 

Type Ratio(A) Burden(VA) Frequency(Hz)
class:0.5 class:1.0
LMK-20 75/5A - 2.5 50/60
100/5A - 5 50/60
150/5A 5 10 50/60
200/5A 5 10 50/60

 

Type Ratio(A) Burden(VA) Frequency(Hz)
class:0.5 class:1.0
LMK-30 150/5A 5 10 50/60
200/5A 5 10 50/60
250/5A 5 10 50/60
300/5A 10 10 50/60
400/5A 10 10 50/60
500/5A 10 10 50/60

 

Type Ratio(A) Burden(VA) Frequency(Hz)
class:0.5 class:1.0
LMK-40 150/5A 5 10 50/60
200/5A 5 10 50/60
250/5A 5 10 50/60
300/5A 10 10 50/60
400/5A 10 10 50/60
500/5A 10 10 50/60
600/5A 10 10 50/60
750/5A 10 10 50/60
800/5A 10 10 50/60
1000/5A 10 10 50/60

 

Type Ratio(A) Burden(VA) Frequency(Hz)
class:0.5 class:1.0
LMK-50 300/5A 10 10 50/60
400/5A 10 10 50/60
500/5A 10 10 50/60
600/5A 10 10 50/60
750/5A 10 10 50/60
800/5A 10 10 50/60
1000/5A 10 10 50/60
1200/5A 20 20 50/60

 

Type Ratio(A) Burden(VA) Frequency(Hz)
class:0.5 class:1.0
LMK-60 500/5A 10 10 50/60
600/5A 10 10 50/60
750/5A 10 10 50/60
800/5A 10 10 50/60
1000/5A 10 10 50/60
1200/5A 20 20 50/60
1500/5A 20 20 50/60

 

Type Ratio(A) Burden(VA) Frequency(Hz)
class:0.5 class:1.0
LMK-80 500/5A 10 10 50/60
600/5A 10 10 50/60
750/5A 10 10 50/60
800/5A 10 10 50/60
1000/5A 10 10 50/60
1200/5A 20 20 50/60
1500/5A 20 20 50/60
2000/5A 40 40 50/60
2500/5A 40 40 50/60

 

Type Ratio(A) Burden(VA) Frequency(Hz)
class:0.5 class:1.0
LMK-100 800/5A 10 10 50/60
1000/5A 10 10 50/60
1200/5A 20 20 50/60
1500/5A 20 20 50/60
2000/5A 40 40 50/60
2500/5A 40 40 50/60

 

Type Ratio(A) Burden(VA) Frequency(Hz)
class:0.5 class:1.0
LMK-120 1000/5A 10 10 50/60
1200/5A 20 20 50/60
1500/5A 20 20 50/60
2000/5A 40 40 50/60
2500/5A 40 40 50/60
3000/5A 40 40 50/60
4000/5A 40 40 50/60

 

Dimensions

 

LMK-20 LMK-30
LMK-40 LMK-50
LMK-60 LMK-80
LMK-100 LMK-120

 

Accuracy test

 

Installation method

24Hs online service
365Ds NON-Stop Production 20Ys Professional Manufacturers
Professional designer and manufacturer of current transformer,
cooperated with Siemens ,schneider Fuji electrical softbank LG samdsung.
Tel:13968747975
Add:(Zhejiang Lierde Relay Co., Ltd.) Xinguang Ind. Zone, Liushi Town, Wenzhou, Zhejiang, China
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