Free Sample Program

Request Your Free Samples

Tell us your specifications and we'll recommend the right current transformer model. Standard samples ship within 3 business days.

UL2808 / CE / RoHS Certified

Ships in 3–5 Business Days

OEM / ODM Friendly

ISO 9001 Certified Since 1995

Specifications

Contact Info

Shipping

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  <h2 class="font-heading font-bold text-primary text-2xl mb-3">Sample Request Submitted!</h2>
  <p class="text-secondary leading-relaxed max-w-md mx-auto mb-6">Thank you! Our engineering team will review your specifications and contact you within <strong>1 business day</strong>. Standard samples ship within 3–5 business days.</p>
  <div class="bg-neutral border border-accent p-4 text-sm text-secondary max-w-sm mx-auto">
    <div class="font-medium text-primary mb-1">What happens next?</div>
    <ol class="text-left space-y-1 list-decimal list-inside">
      <li>We review your specs & recommend a model</li>
      <li>Samples produced & shipped (3–5 days)</li>
      <li>You test & approve — then place your order</li>
    </ol>
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Product Specifications

Provide your electrical requirements so we can match the right CT model.

Rated Primary Current *

Range: 1A – 120A AC. Popular: 50A, 100A

Output Type *

Voltage: 333mV / 0.5V / 1V / 3V. Current: mA / 4–20mA

Cable Length *

Standard: 2.4m twisted pair. Custom available.

Sample Quantity *

Free samples via your DHL/UPS freight-collect account.

Required Accuracy

Connector / Terminal

Additional Specifications / Notes

Contact Information

We'll use these details to confirm your request and coordinate shipping.

First Name *

Last Name *

Business Email *

Phone / WhatsApp

Company Name *

Job Title

Country *

Application / End Use

Shipping Details

Free samples ship via your DHL/UPS freight-collect account. Please provide your courier account number.

Delivery Address *

Preferred Courier

Courier Account Number

If no account, we'll invoice shipping separately.

Request Summary

Primary Current: —

Output: —

Cable Length: —

Sample Qty: —

I confirm that the information provided is accurate and I agree to receive sample shipment coordination communications from Jiangyin Spark Electronics. We do not share your data with third parties.

How It Works

1

Submit Your Specs

Provide current, output, and cable requirements.
2

Model Recommendation

Our engineers recommend the best-fit model within 1 business day.
3

Samples Shipped

Standard samples ready in 3 days. Special configs: 5–15 days.
4

Approve & Order

Test samples, approve, then place bulk order. Lead time: 10–15 days.

Popular Configurations

50A / 333mV

Energy Monitoring
50A / 50mA

Smart Meter
100A / 40mA

Power Quality
100A / 50mA

PV Inverter
100A / 1V

ESS / Storage

Certifications

UL2808 CE UKCA RoHS ISO 9001 ISO 14001 ISO 45001

Need Help?

Our engineering team is ready to assist with technical questions.

[email protected]

Jiangyin City, Jiangsu, China