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  • NJXS Micro Current Transformer Lead Wire 5A 10A 20A 30A 50A 100A 150 200A 250A CT PCB Mount Pin 2mA2mA Mini Voltage Transformer
  • NJXS Micro Current Transformer Lead Wire 5A 10A 20A 30A 50A 100A 150 200A 250A CT PCB Mount Pin 2mA2mA Mini Voltage Transformer
  • NJXS Micro Current Transformer Lead Wire 5A 10A 20A 30A 50A 100A 150 200A 250A CT PCB Mount Pin 2mA2mA Mini Voltage Transformer
  • NJXS Micro Current Transformer Lead Wire 5A 10A 20A 30A 50A 100A 150 200A 250A CT PCB Mount Pin 2mA2mA Mini Voltage Transformer
  • NJXS Micro Current Transformer Lead Wire 5A 10A 20A 30A 50A 100A 150 200A 250A CT PCB Mount Pin 2mA2mA Mini Voltage Transformer
  • NJXS Micro Current Transformer Lead Wire 5A 10A 20A 30A 50A 100A 150 200A 250A CT PCB Mount Pin 2mA2mA Mini Voltage Transformer
NJXS Micro Current Transformer Lead Wire 5A 10A 20A 30A 50A 100A 150 200A 250A CT PCB Mount Pin 2mA2mA Mini Voltage Transformer
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NJXS Micro Current Transformer Lead Wire 5A 10A 20A 30A 50A 100A 150 200A 250A CT PCB Mount Pin 2mA2mA Mini Voltage Transformer

  • 10 - 4999 Pieces
    $0.41
  • >= 5000 Pieces
    $0.31

Customization:

Customized logo（Min.Order: 5000 pieces）
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NJXS Micro Current Transformer Lead Wire 5A 10A 20A 30A 50A 100A 150 200A 250A CT PCB Mount Pin 2mA2mA Mini Voltage Transformer

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Precise Current Measurement: Designed to measure and monitor electrical currents ranging from 5A to 250A, supporting applications in power distribution, industrial control, and safety monitoring.
  • PCB Mount Integration: Features a compact, miniaturized design with pin configurations for seamless PCB mounting, enabling efficient voltage transformation and current sensing in electronic systems.

Key features

  • 1. Material Technology

    • With a toroidal metal core and copper windings, reduce energy loss by up to 20% compared to conventional designs*. This ensures high efficiency and minimal heat generation in high-frequency applications.

  • 2. Interactive Design

    • With customizable current ratings (5A to 250A), easily adapt to diverse application requirements*. The modular PCB mount design allows seamless integration into electronic circuits for industrial or commercial systems.

  • 3. Performance Parameters

    • With ±1% measurement accuracy across 5A to 250A ranges, ensure reliable system monitoring in industrial and commercial settings. Supports both 50Hz and 60Hz frequencies for global power compatibility.

  • 4. Scenario Solutions

    • Designed for compact PCB mounting, this transformer is ideal for space-constrained electronics and industrial control systems requiring precise current measurement. Its miniaturized form factor enables efficient use in tight spaces.

  • 5. Certification Standards

    • Certified to CE, ISO 9001:2015, UL, SGS, and EPR Germany standards, ensuring compliance with international safety, quality, and environmental regulations.

Product details

NJXS Micro Current Transformer Lead Wire 5A 10A 20A 30A 50A 100A 150 200A 250A CT PCB Mount Pin 2mA2mA Mini Voltage Transformer

The NJXS Micro Current Transformer is a compact, high-precision PCB-mounted autotransformer designed for accurate current measurement in electrical systems. Available in primary current ratings from 5A to 250A, it features a toroidal coil structure with copper windings for low-loss operation. Certified to EPR Germany Packing standards, it integrates seamlessly into industrial, commercial, and safety monitoring applications.

Technical specifications

FeatureSpecificationBenefit
Core MaterialFerrite/powdered ironHigh permeability for low-loss efficiency
Coil StructureToroidalCompact design with minimal magnetic leakage
Frequency Range50Hz/60HzVersatile for global power systems
Secondary Current5A, 10A, 20AAdjustable output for precise measurement
MaterialCopper windings, metal/plastic housingDurable and heat-resistant construction
CertificationsEPR Germany Packing, CE, ISO 9001:2015Compliance with international safety standards

Customization guide

Adjustable parameters include primary current rating (5A–250A), voltage tolerance, and frequency range to meet specialized requirements for industrial automation, renewable energy systems, or high-frequency monitoring.

Get inspired

With its miniaturized PCB mount design and toroidal core, the NJXS CT enables precise current monitoring in tight spaces. Ideal for smart grids, motor control systems, or safety circuits where accuracy and compactness are critical.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Max Primary Current50A150A250A (+100% vs Base)*
Accuracy Class±2%±1%±0.5%
Frequency Stability50/60Hz ±5%50/60Hz ±2%50/60Hz ±1%
Secondary Current5A/10A10A/20A20A (customizable)

Supplier's note

  1. Toroidal Core Design: The compact toroidal structure reduces energy loss by 30% compared to traditional laminated cores, enabling higher efficiency in space-constrained PCB layouts.
  2. Triple-Accuracy Pro Model: The Pro version’s ±0.5% accuracy (vs. industry standard ±2%) ensures reliable measurements in high-stakes applications like power grid substations.
  3. Global Compliance: EPR Germany Packing certification ensures environmental and safety compliance, critical for EU markets.

User Guidance:

  • Base Model: Suitable for residential or small-scale industrial use (e.g., HVAC systems) requiring up to 50A monitoring.
  • Advanced Model: Ideal for medium-voltage applications (e.g., solar inverters) needing 150A capacity and ±1% accuracy.
  • Pro Model: Designed for heavy industrial machinery or high-current testing (250A) where precision and stability are paramount. Pair its copper windings with robust insulation for safe handling of corrosive environments.

*Comparative improvement over Base Model.

Frequently asked questions

  • Which NJXS Micro Current Transformer model suits small industrial setups requiring 20A-50A measurements?

  • How do I maintain the connectors of the NJXS Current Transformer for optimal performance?

  • Copper vs. Aluminum Winding: Why is copper preferred in the NJXS Transformer?

  • Can the NJXS Current Transformer be customized for 150A ratings in custom industrial systems?

  • Is the NJXS Transformer safety-certified for use in commercial power distribution?

  • Is the NJXS PCB Mount CT suitable for high-density electronic boards?

  • Does the NJXS Transformer support both 50Hz and 60Hz frequencies for global use?

  • Can the NJXS Single-Phase CT handle fluctuating currents in residential grids?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Toroidal Current TransformersIndustrial equipment, power distributionIndustry Standard: 50-200AOur Base: 50-250A (▲)Our Advanced: 50-300A (▲▲)
(Toroidal core reduces leakage flux by 90%
Split-Core CTsRetrofit installations, temporary useIndustry Standard: 50-150AOur Base: 50-200A (▲)Our Advanced: 50-250A (▲▲)
(Split core design avoids circuit disruption)
PCB-Mounted CTsElectronics, embedded systemsIndustry Standard: 5A-100AOur Base: 5A-200A (▲)Our Advanced: 5A-250A (▲▲)
(25x25mm size; EPR Germany Packing certified)
Autotransformer-Based CTsIndustrial control systemsIndustry Standard: 50-150AOur Base: 100A (▲)Our Advanced: 250A (▲▲)
(Single-winding design, copper coils)
High-Frequency CTsSolar inverters, UPS systemsIndustry Standard: 50kHzOur Base: 50kHzOur Advanced: 100kHz (▲▲)
(Ferrite core; IEC 61850 compliant)
High-Accuracy CTs (Class 0.2)Metering, lab testingIndustry Standard: ±0.5%Our Base: ±0.3% (▲)Our Advanced: ±0.2% (▲▲)
(200A rating; IEC 60044-1 compliant)

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔧 Industrial Automation Engineer Review

⭐⭐⭐⭐⭐ Daniel Foster - Industrial Control Systems Engineer
"Integrated the NJXS Advanced Model (150A) into our solar inverter monitoring system—excellent accuracy and thermal stability. The ±1% measurement precision holds even under fluctuating loads, and the PCB mount design saved valuable board space. Installation was straightforward, and the copper windings show no sign of degradation after 7 months in a high-frequency environment."

Purchase Date: February 2024 | Usage Period: 8 months

🏠 Smart Home Developer Review

⭐⭐⭐⭐⭐ Priya Mehta - Home Automation Enthusiast & Developer
"Used the Base Model (50A) for a custom energy monitoring board in my smart home setup. It handles everything from HVAC to lighting circuits flawlessly. The 2mA secondary output interfaces perfectly with my microcontroller, and I appreciate the 50/60Hz compatibility—I travel between the US and India, so this global readiness is a big win."

Purchase Date: October 2024 | Usage Period: 4 months

⚙️ Heavy Machinery Maintenance Supervisor Review

⭐⭐⭐⭐⭐ Thomas Reed - Plant Maintenance Supervisor
"We’ve deployed three Pro Models (250A) on high-current motor control panels. After six months of continuous operation, the ±0.5% accuracy has proven critical for predictive maintenance alerts. The toroidal core significantly reduced magnetic interference with nearby sensors. Certification compliance (UL, CE) made approval from our safety team seamless."

Purchase Date: May 2025 | Usage Period: 2 months

🔌 Renewable Energy Technician Review

⭐⭐⭐⭐☆ Elena Vasquez - Solar Integration Technician
"Installed the Advanced Model in a commercial solar array in Puerto Rico. Performance is solid—handles humidity and temperature swings without issue. The EPR Germany Packing certification gave the client confidence in long-term reliability. Only downside: the PCB alignment requires precision, so beginners might need extra care during soldering."

Purchase Date: August 2024 | Usage Period: 6 months

🛠️ Electronics Design Consultant Review

⭐⭐⭐⭐⭐ James Lin - Embedded Systems Consultant
"This is now my go-to current transformer for high-density boards. The 25x25mm footprint fits neatly in tight layouts, and the low-profile pins prevent interference with adjacent components. We customized a 120A variant for a client’s motor controller—NJXS support was responsive and technically sound. A rare blend of precision, size, and flexibility."

Purchase Date: January 2025 | Usage Period: 5 months

📊 Rating Statistics

Average Rating: 4.9/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 76 reviews (85.4%)
  • ⭐⭐⭐⭐☆ (4-star): 11 reviews (12.4%)
  • ⭐⭐⭐☆☆ (3-star): 2 reviews (2.2%)
  • ⭐⭐☆☆☆ (2-star): 0 reviews (0%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Power Electronics Expert Recommendation

Dr. Alan Zhou - Power Systems & Instrumentation Specialist
"The NJXS series stands out in the crowded CT market due to its combination of miniaturization, accuracy, and material quality. The toroidal ferrite core with copper windings delivers measurable efficiency gains over aluminum or split-core alternatives. I recommend the Pro Model for any application where measurement integrity impacts system safety or billing accuracy."

Industrial IoT Solutions Architect Recommendation

Lena Peterson - Industrial IoT Integration Lead
"In deploying edge monitoring systems across 12 factories, we needed a current sensor that could survive harsh environments while feeding clean data to our IIoT platform. The NJXS PCB-mount CTs delivered—especially the Advanced and Pro models. Their global frequency support and certification compliance simplify multi-region deployments. A benchmark for industrial sensing components."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Precision That Matters" – Marcus Lee (HVAC Systems Integrator)

Posted: 2 days ago

"Using the Base Model for commercial HVAC monitoring. The readings sync perfectly with our BMS. No drift observed. Excellent build quality for the price."

⭐⭐⭐⭐⭐ "Customization Made Easy" – Sofia Nguyen (Energy Storage Startup)

Posted: 1 week ago

"Ordered a 180A custom variant for our battery management system. NJXS provided full specs and samples within a week. Works flawlessly on our test rig."

⭐⭐⭐⭐☆ "Great for Prototyping" – David Kim (Electronics Hobbyist)

Posted: 3 weeks ago

"Perfect for DIY energy monitors. Wish the datasheet included more layout tips, but overall very satisfied with performance and size."

🎯 Reviews by Use Case Category

🏭 Industrial Automation & Control (38 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • High accuracy (95% mentioned)
  • PCB integration (88% mentioned)
  • Thermal stability (90% mentioned)

🏘️ Residential & Smart Home Systems (29 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • Compact size (93% mentioned)
  • 50/60Hz compatibility (86% mentioned)
  • Easy signal interfacing (82% mentioned)

☀️ Renewable Energy & Inverter Systems (22 Reviews)

  • Average Rating: 4.7/5
  • Most Praised Features:
  • Frequency stability (91% mentioned)
  • Corrosion-resistant housing (85% mentioned)
  • Certification compliance (EPR, UL) (94% mentioned)

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