ISO9001 · CE · UL · RoHS Certified Manufacturer Since 1995

High Accuracy Current Transformers & Rogowski Coils

OEM & ODM · Split Core CT · Flexible Rogowski Coil · Solid Core CT · Current Sensors -- for Solar, Smart Grid, EV Charging & Industrial Automation

UL2808 Certification UKCA Certification RoHS Certification ISO Certification CE Certification
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What We Make

Product Categories

Comprehensive electromagnetic measurement products engineered for precision, reliability, and global compliance.

Split Core Current Transformer

UL2808 Hinged Split Core Current Transformer

Easy installation without disconnecting wires. Ideal for retrofit and monitoring applications.

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Flexible Rogowski Coil

Flexible Rogowski Coil

Flexible design for large or irregular bus bars. Wide frequency range and high accuracy.

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Solid Core Current Transformer

Solid Core Current Transformer

Superior accuracy and stability for permanent installations in panels and switchgear.

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Clamp Current Sensor

Clamp Current Sensor

Clip-on design for fast non-invasive current measurement in diverse environments.

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sm leading-relaxed mb-4">Clip-on design for fast non-invasive current measurement in diverse environments.

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Markets

Industries We Serve

Trusted by manufacturers and solution providers across the world's fastest-growing energy sectors.

☀️
Solar Energy
PV Inverters & Systems
📊
Energy Monitoring
Smart Meters & IoT
⚡
Smart Grid
Grid Infrastructure
🏭
Industrial Automation
Control Systems
🔋
EV Charging
EV Infrastructure
🖥️
Data Center
Power Monitoring
Energy Storage (ESS) Power Quality Monitoring Utility Companies Switchgear Manufacturers Electrical Panel Builders OEM & ODM Partners

Our Advantages

Why Choose Jiangyin Spark?

Since 1995, Jiangyin Spark has built a reputation for precision engineering, rigorous quality control, and responsive OEM/ODM services -- delivering electromagnetic solutions that global customers trust.

OEM & ODM Custom Design
Professional engineering team to design per your specs. Custom sizes, ratios, connectors, and labeling available.
High Accuracy & Reliability
Precision ±0.1% class products with rigorous QC. Consistent performance across production batches.
Fast Delivery
7-10 days for 10,000 pcs. Located near Shanghai Port for efficient global logistics.
UL / CE / RoHS Certified
UL2808, CE, UKCA, RoHS, ISO9001, ISO14001, ISO45001 -- meeting international market requirements.
30+ Years Experience
Founded 1995. Multiple invention patents. Awarded Jiangsu Province Engineering Industry Improvement Prize.
1995
Year Established
145
Skilled Employees
6,000
m² Factory Area
10K+
pcs / 7-10 Days

Certifications & Standards

UL2808 CE UKCA RoHS ISO 9001 ISO 14001 ISO 45001

Patents & Awards

  • ▸ Multiple registered invention & utility model patents
  • ▸ 2010 Jiangsu Province Engineering Industry Improvement Award (2nd Prize)
  • ▸ Wuxi City High & New Technology Enterprise

Catalog Highlights

Featured Products

A selection of our most popular electromagnetic measurement solutions, ready for OEM customization.

SCT-013 Split Core CT Best Seller

SCT-013 Split Core CT

0-100A / 0-1A or 0-333mV

Non-invasive, clip-on, widely used in energy monitors

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Flexible Rogowski Coil Popular

Flexible Rogowski Coil

10A-10,000A

Flexible coil for large conductors, high frequency accuracy

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PCB Mount CT New

PCB Mount CT

1A-200A

Compact design for embedded electronics and smart meters

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Solid Core Revenue CT High Accuracy

Solid Core Revenue CT

5A-3000A

High accuracy class 0.2S for utility metering

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Mini Voltage Transformer Compact

Mini Voltage Transformer

100V-600V

Compact PCB/wire lead design for voltage monitoring

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Split Core Transducer Industrial

Split Core Transducer

4-20mA / 0-5V output

Analog signal output for SCADA and PLC integration

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Our Factory

Manufacturing Capability

State-of-the-art production facility in Jiangyin, Jiangsu -- near Shanghai Port for streamlined global export.

🏗️
6,000 m²
Factory Floor Area
👷
145
Skilled Employees
⚡
7-10 Days
10K pcs Lead Time
🚢
Near Shanghai
Port Proximity
Jiangyin Spark Factory
Precision Winding & Assembly
Automated coil winding machines ensuring consistent accuracy across all production batches.
In-House Mold & Tooling
Custom mold design capability for OEM housing and enclosure requirements.
Full Testing Laboratory
Calibration and testing equipment for accuracy class verification per IEC/UL standards.
Mechanization & Digitalization
Continuous investment in automated production and digital quality management systems.
R&D Engineering Team
Professional engineers for custom specification design and rapid prototyping.

Trust & Compliance

Certifications & Standards

Our products meet rigorous international standards, enabling seamless market entry across North America, Europe, and beyond.

UL2808
North America
CE
Europe
UKCA
United Kingdom
RoHS
Global
ISO 9001
Quality Mgmt
ISO 14001
Environmental
ISO 45001
Safety Mgmt
100% Quality Control

Every unit tested before shipment. Calibration certificates available on request.

Multiple Patents

Registered invention and utility model patents protecting our innovative designs.

Award-Winning

2010 Jiangsu Province Engineering Industry Improvement Award -- 2nd Prize.

Get In Touch

Request a Custom Quote

Tell us your specifications -- we'll provide a competitive quote with fast turnaround. OEM/ODM projects welcome. Our engineers are ready to assist with custom designs.

📍
Location
Jiangyin City, Jiangsu Province, China (Near Shanghai Port)
🏭
Business Type
Manufacturer -- OEM & ODM Friendly
⏱️
Lead Time
7-10 Days for 10,000 pcs
✅
Certifications
UL · CE · UKCA · RoHS · ISO 9001/14001/45001
Why Request a Quote?
  • ✓ No obligation, free engineering consultation
  • ✓ Custom spec design by professional engineers
  • ✓ Competitive factory-direct pricing
  • ✓ Fast response within 24 business hours

Send Your Inquiry

Submitting your inquiry...

We respond within 24 business hours. Your information is kept confidential.