LMZJ1 Current Transformer | 0.5kV/0.66kV Cast Resin Indoor CT
LMZJ1 Current Transformer | 0.5kV/0.66kV Cast Resin Indoor CT
LMZJ1 series indoor cast resin current transformer features 0.5kV & 0.66kV rated voltage, 5/5A–1500/5A current ratio, high precision 0.2S/0.5/1 class for power measurement & relay protection. Buy reliable LMZJ1 CT at factory price.
LMZJ1 series indoor cast resin current transformer features 0.5kV & 0.66kV rated voltage, 5/5A–1500/5A current ratio, high precision 0.2S/0.5/1 class for power measurement & relay protection. Buy reliable LMZJ1 CT at factory price.
1. Product Overview
The LMZJ1 is a widely used low-voltage indoor current transformer designed for AC power distribution systems with a rated frequency of 50Hz, rated voltage of 0.5kV or 0.66kV and below. Adopting full-sealed cast resin insulation technology, this split-core integral structure CT delivers excellent insulation performance, dustproof, moisture-proof and anti-corrosion capabilities, ensuring stable operation in harsh indoor power environments.
LMZJ1 current transformers are mainly applied for accurate current measurement, electric energy metering and relay protection in industrial power distribution cabinets, low-voltage switchgears, PLC control systems and complete power equipment. It supports multiple current ratios and accuracy grades, meeting diversified industrial and commercial power monitoring demands.
2. Core Product Features
-
Full Sealed Cast Resin Structure: Integral epoxy resin casting design isolates internal components from external dust, moisture and corrosive gases, effectively avoiding insulation aging and short-circuit faults, with long service life.
-
High Measurement Accuracy: Available in 0.2S, 0.5S, 0.5 and 1 accuracy classes, ensuring precise current collection and energy metering for high-precision power system scenarios.
-
Wide Current Ratio Range: Covers comprehensive specifications from 5/5A up to 1500/5A, compatible with most low-voltage power distribution current monitoring requirements.
-
Easy Installation & Compact Size: Equipped with fixed base plate for quick wall or cabinet mounting; lightweight and miniaturized structure saves installation space in switchgear cabinets.
-
Stable Electrical Performance: Low power consumption, small measurement error, strong overload resistance, stable and reliable long-term continuous operation.
-
Standard Industrial Compatibility: Fully compliant with international low-voltage transformer standards, compatible with mainstream power monitoring instruments and PLC automation systems.
3. Main Technical Parameters
|
Parameter Item
|
Technical Specification
|
|---|---|
|
Product Model
|
LMZJ1-0.5, LMZJ1-0.66
|
|
Rated Voltage
|
0.5kV / 0.66kV
|
|
Rated Frequency
|
50Hz AC
|
|
Current Ratio Range
|
5/5A ~ 1500/5A
|
|
Accuracy Class
|
0.2S, 0.5S, 0.5, 1
|
|
Rated Output Load
|
2.5VA ~ 5VA
|
|
Installation Type
|
Indoor fixed base mounting
|
|
Insulation Type
|
Full-sealed epoxy resin casting
|
|
Application Scenario
|
Current measurement, energy metering, relay protection
|
4. Outline dimension
5. Common Specifications List
We provide complete LMZJ1 CT specifications for customized matching: 5/5A, 10/5A, 15/5A, 20/5A, 25/5A, 30/5A, 50/5A, 75/5A, 100/5A, 200/5A, 300/5A, 400/5A, 600/5A, 800/5A, 1000/5A, 1500/5A, supporting 0.2S/0.5S high-precision metering grades.
6. Application Scenarios
The LMZJ1 current transformer is widely used in indoor low-voltage power distribution systems across multiple industries, including industrial manufacturing workshops, commercial building power distribution, municipal power engineering, factory switchgear cabinets, PLC automatic control systems, and power energy monitoring equipment. It accurately converts high primary current into standard 5A secondary current, providing reliable data support for power meters, protection relays and monitoring devices.
7. Product Advantages Over Ordinary CT
Compared with traditional open-type current transformers, the LMZJ1 fully sealed casting structure completely avoids insulation breakdown caused by dust and humidity. Its standardized size and universal installation structure improve construction efficiency. Meanwhile, high-precision grade options effectively reduce metering errors, helping enterprises realize refined power management and safe power operation.
8. FAQ
Q1: What is the difference between LMZJ1-0.5 and LMZJ1-0.66?
LMZJ1-0.5 is suitable for 0.5kV and below low-voltage circuits, while LMZJ1-0.66 adapts to 0.66kV voltage systems with wider voltage tolerance, covering more industrial power distribution scenarios.
Q2: What does 0.2S/0.5S accuracy grade mean?
0.2S and 0.5S are high-precision metering grades, suitable for accurate electric energy metering occasions with strict error requirements; 0.5 and 1 grades are mostly used for conventional current monitoring and relay protection.
Q3: Is the LMZJ1 current transformer suitable for outdoor use?
No. The LMZJ1 series is specially designed for indoor use. For outdoor power monitoring scenarios, please choose outdoor waterproof and anti-corrosion CT models.
9. Purchase & Customization
We supply original high-quality LMZJ1 current transformers with complete specifications, stable quality and factory direct sales support. We support customized current ratio, accuracy grade and load parameters according to customer project demands, with fast delivery and professional after-sales service. Contact us to get the latest quotation and technical datasheet.
1. Product Overview
The LMZJ1 is a widely used low-voltage indoor current transformer designed for AC power distribution systems with a rated frequency of 50Hz, rated voltage of 0.5kV or 0.66kV and below. Adopting full-sealed cast resin insulation technology, this split-core integral structure CT delivers excellent insulation performance, dustproof, moisture-proof and anti-corrosion capabilities, ensuring stable operation in harsh indoor power environments.
LMZJ1 current transformers are mainly applied for accurate current measurement, electric energy metering and relay protection in industrial power distribution cabinets, low-voltage switchgears, PLC control systems and complete power equipment. It supports multiple current ratios and accuracy grades, meeting diversified industrial and commercial power monitoring demands.
2. Core Product Features
-
Full Sealed Cast Resin Structure: Integral epoxy resin casting design isolates internal components from external dust, moisture and corrosive gases, effectively avoiding insulation aging and short-circuit faults, with long service life.
-
High Measurement Accuracy: Available in 0.2S, 0.5S, 0.5 and 1 accuracy classes, ensuring precise current collection and energy metering for high-precision power system scenarios.
-
Wide Current Ratio Range: Covers comprehensive specifications from 5/5A up to 1500/5A, compatible with most low-voltage power distribution current monitoring requirements.
-
Easy Installation & Compact Size: Equipped with fixed base plate for quick wall or cabinet mounting; lightweight and miniaturized structure saves installation space in switchgear cabinets.
-
Stable Electrical Performance: Low power consumption, small measurement error, strong overload resistance, stable and reliable long-term continuous operation.
-
Standard Industrial Compatibility: Fully compliant with international low-voltage transformer standards, compatible with mainstream power monitoring instruments and PLC automation systems.
3. Main Technical Parameters
|
Parameter Item
|
Technical Specification
|
|---|---|
|
Product Model
|
LMZJ1-0.5, LMZJ1-0.66
|
|
Rated Voltage
|
0.5kV / 0.66kV
|
|
Rated Frequency
|
50Hz AC
|
|
Current Ratio Range
|
5/5A ~ 1500/5A
|
|
Accuracy Class
|
0.2S, 0.5S, 0.5, 1
|
|
Rated Output Load
|
2.5VA ~ 5VA
|
|
Installation Type
|
Indoor fixed base mounting
|
|
Insulation Type
|
Full-sealed epoxy resin casting
|
|
Application Scenario
|
Current measurement, energy metering, relay protection
|
4. Outline dimension
5. Common Specifications List
We provide complete LMZJ1 CT specifications for customized matching: 5/5A, 10/5A, 15/5A, 20/5A, 25/5A, 30/5A, 50/5A, 75/5A, 100/5A, 200/5A, 300/5A, 400/5A, 600/5A, 800/5A, 1000/5A, 1500/5A, supporting 0.2S/0.5S high-precision metering grades.
6. Application Scenarios
The LMZJ1 current transformer is widely used in indoor low-voltage power distribution systems across multiple industries, including industrial manufacturing workshops, commercial building power distribution, municipal power engineering, factory switchgear cabinets, PLC automatic control systems, and power energy monitoring equipment. It accurately converts high primary current into standard 5A secondary current, providing reliable data support for power meters, protection relays and monitoring devices.
7. Product Advantages Over Ordinary CT
Compared with traditional open-type current transformers, the LMZJ1 fully sealed casting structure completely avoids insulation breakdown caused by dust and humidity. Its standardized size and universal installation structure improve construction efficiency. Meanwhile, high-precision grade options effectively reduce metering errors, helping enterprises realize refined power management and safe power operation.
8. FAQ
Q1: What is the difference between LMZJ1-0.5 and LMZJ1-0.66?
LMZJ1-0.5 is suitable for 0.5kV and below low-voltage circuits, while LMZJ1-0.66 adapts to 0.66kV voltage systems with wider voltage tolerance, covering more industrial power distribution scenarios.
Q2: What does 0.2S/0.5S accuracy grade mean?
0.2S and 0.5S are high-precision metering grades, suitable for accurate electric energy metering occasions with strict error requirements; 0.5 and 1 grades are mostly used for conventional current monitoring and relay protection.
Q3: Is the LMZJ1 current transformer suitable for outdoor use?
No. The LMZJ1 series is specially designed for indoor use. For outdoor power monitoring scenarios, please choose outdoor waterproof and anti-corrosion CT models.
9. Purchase & Customization
We supply original high-quality LMZJ1 current transformers with complete specifications, stable quality and factory direct sales support. We support customized current ratio, accuracy grade and load parameters according to customer project demands, with fast delivery and professional after-sales service. Contact us to get the latest quotation and technical datasheet.
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