Est. 1995 · ISO 9001 · UL Listed

Your Current Transformer
& Rogowski Coil Partner
for Smart Energy Solution

Jiangyin Spark manufactures UL2808 Split Core CTs, Rogowski Coils, Clamp-on CTs and PCB Mount Toroids for energy monitoring and smart grid solutions worldwide.

1995
Established
145
Employees
7-10
Days / 10K pcs

Trusted Manufacturer Since 1995

Jiangyin City, Jiangsu · Near Shanghai Port

6,000
m² Factory
145
Employees
OEM
ODM Friendly
ISO
9001 · 14001 · 45001

What We Make

Customers favorite

Rogowski coil
Rogowski coil

Rogowski coil

  • Rated current (rms): 50-10000A
  • Output: 100mV/1000A (without integrator)
View Series
Clamp on Current Transformer
Clamp on CT

Clamp on Current Transformer

  • Rated Primary current : 1A to 300Aac
  • Current Range: 10% - 120% of Rated Current
View Series
Split core current sensor hinged
Split core CT

Split core current sensor hinged

  • Rated Primary current: 1-600A
  • Current Range: 10% - 120% of Rated Current
View Series
Split core CT 333mV Square UL2808
Split core CT

Split core CT 333mV Square UL2808

  • Rated input current: 20A-5000A
  • Output: 0.333v
View Series
Waterproof Split core CT
Waterproof Split core CT

Waterproof Split core CT

  • Rated Primary Current: 100-2000A
  • Rated secondary output: 1A ,5A,mA ,mV,V
View Series
Solid core CT
Solid core CT

Solid core CT

  • Rated input current: 5A to 600A
  • Output: 0.333V AC
View Series
Revenue grade  Split Core CT
Split core CT

Revenue grade Split Core CT

  • Accuracy: 0.5%
View Series
Split core Current Transformer UL2808 Hinged
Split core CT

Split core Current Transformer UL2808 Hinged

View Series

Why Choose Jiangyin Spark

Your Trusted CT & Rogowski Coil Manufacturer

Multi-Certification

Comprehensive compliance covering North America, Europe, and global markets -- reducing your procurement risk.

UL Listed CE RoHS UKCA ISO 9001 ISO 14001 ISO 45001
Jiangyin Spark certified quality factory
01

Certified Quality

Global Certifications You Can Trust

Our products and manufacturing systems comply with international standards, including UL2808, UL, CE, UKCA, RoHS, ISO9001, ISO14001, and ISO45001, ensuring consistent quality and global market acceptance.

8+
Certifications
Global
Market Acceptance
Jiangyin Spark OEM ODM engineering team
02

Strong OEM & ODM Capability

Custom Designs, Faster Development

Our experienced engineering team provides OEM and ODM solutions tailored to your requirements. From concept to prototype, we shorten development cycles and deliver samples quickly.

15-20 Days
3D Sample Lead Time
OEM/ODM
Full Support
Jiangyin Spark in-house testing laboratory
03

In-House Testing Laboratory

Every Design Fully Verified

Our advanced laboratory performs comprehensive electrical, environmental, and mechanical testing, including high/low temperature, waterproof, dust, salt spray, tensile, drop, UV aging, and flame resistance tests to validate product reliability.

10+
Test Types
In-House
Lab Facility
Jiangyin Spark precision manufacturing 100% testing
04

Precision Manufacturing

High-Grade Materials. 100% Tested.

We use premium magnetic cores and high-quality materials combined with strict manufacturing processes. Every current transformer undergoes 100% functional testing to ensure stable accuracy and long-term reliability.

0.5%
Accuracy Class
100%
Full Inspection
Jiangyin Spark fast production delivery factory
05

Fast Production & Delivery

High Capacity for On-Time Shipment

With efficient production lines and streamlined manufacturing, standard products are typically delivered within 7-10 days for orders up to 10,000 pieces, helping customers shorten project lead times.

7-10 Days
10K pcs Lead Time
145
Skilled Employees

Established 1995 · Jiangyin City, Jiangsu (Near Shanghai Port)

6,000 m² factory · ISO 9001 / 14001 / 45001 certified manufacturer

30+
Years Experience
145
Employees
6,000
Factory Area

Compliance & Trust

Certifications & Standards

UL 2808
UL 2808
E498920
CE
CE
European Conformity
RoHS
RoHS
Directive 2011/65/EU
UKCA
UKCA
UK Conformity
ISO 9001
ISO 9001
Quality Management
ISO 14001
ISO 14001
Environmental

Where We're Used

Applications Across
Smart Energy Industries

Spark CTs are deployed globally in energy monitoring, renewable energy, EV charging, data centers, and smart grid infrastructure -- wherever accurate current measurement matters.

Energy Monitoring Solar Energy System PV Inverter Energy Storage (ESS) Smart Meter Power Quality Monitoring Smart Grid Solution Data Center Power EV Charging Solution IoT Energy Management
☀️
Solar & PV
🔌
Smart Grid
🚗
EV Charging
🖥️
Data Centers

How to Order

Simple OEM/ODM Order Process

From specification to delivery -- we make it fast and straightforward.

01
01

Provide Specifications

Share your requirements: input current, output type, lead wire length, terminal type, and window size.

02
02

Model Recommendation

We recommend the most suitable model from our range based on your specs.

03
03

Receive Quotation

We provide a competitive quote based on your order quantity and customization needs.

04
04

Sample Production

Standard samples ship within 3 days. Special lead wires or terminals: 5-15 days. Free samples available.

05
05

Sample Testing & Approval

You test the samples. Once approved, place your production order.

06
06

Production & Delivery

Standard lead time: 10-15 days. 10K pcs deliverable in 7-10 days. Near Shanghai port for fast shipping.

Popular Ratings

50A / 333mV
50A / 50mA
100A / 40mA
100A / 50mA
100A / 1V

Get Started Today

Ready to Source Precision CTs
for Your Next Project?

Tell us your specifications -- we'll recommend the right model, provide a fast quote, and ship samples within 3 days. OEM/ODM welcome.

📦
Free Samples
Standard samples in 3 days via your DHL/UPS account
Fast Delivery
10K pcs in 7-10 days from Jiangyin, near Shanghai port
🔧
OEM / ODM
Custom wire, connectors, window size & branding

Jiangyin Spark Electronic Co., Ltd · Jiangyin City, Jiangsu, China · Est. 1995