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Reliable Electrical Connection Solutions

Professional terminal block manufacturer since 2002. 20+ years of experience, independent R&D, and global export expertise.

Direct Manufacturer Best price & quality assurance
Fast Lead Time 1–3 days production
Quick Response Replies within 12 hours
Global Export Serving 50+ countries
Explore Products

About Sipun Electric

Zhejiang Sipun Electric Co., Ltd. is a professional manufacturer of terminal blocks, delivering high-quality electrical connection solutions since 2002.

Sipun Workshop

With over 20 years of industry experience, we specialize in the research, development, and manufacturing of terminal blocks for industrial automation, power systems, and control panels.

Our products comply with international standards including GB/T 14048.1, GB/T 14048.7, and IEC 60947-1 / IEC 60947-7-1, ensuring safety, reliability, and performance in demanding environments.

Sipun terminal blocks are trusted across Southeast Asia, the Middle East, Europe, and the United States. We offer OEM/ODM services and are committed to being your long-term strategic partner.

  • ISO-Certified Manufacturing
  • 20+ Years of R&D Experience
  • Global Distribution Network

Our Featured Products

High-performance terminal blocks designed for industrial reliability, safety, and ease of installation.

SUT-6S High-Voltage Terminal Block

SUT-6S

High-Voltage Screw Terminal Block

  • Rated Voltage: 1000V
  • Connection: Screw Clamping
  • Standard: IEC 60947-7-1
  • Compatible with ST2/ST3
View Details
SUT-10JD High-Voltage Terminal Block

SUT-10JD

High-Voltage Screw Terminal Block

  • Rated Voltage: 1000V
  • Connection: Screw Clamping
  • Plug-in Bridge Design
  • IEC 60947-1 Compliant
View Details
SUT-2.5 Terminal Block

SUT-2.5

Compact High-Voltage Terminal

  • Rated Voltage: 1000V
  • Space-Saving Design
  • Screw Clamping System
  • Plug-in Bridge Compatible
View Details
SUT-10 High-Voltage Terminal Block

SUT-10

Heavy-Duty Terminal Block

  • Rated Voltage: 1000V
  • High Current Capacity
  • DIN Rail Mountable
  • IEC 60947-7-1 Certified
View Details
SUK Feed Through Terminal Block

SUK-1501

Feed Through Screw Terminal

  • Feed-Through Design
  • Robust Screw Connection
  • High Insulation Resistance
  • Wide Temperature Range
View Details
ST3 Spring Terminal Block

ST3 Multi-Level

Spring Clamp Terminal Block

  • Cage Spring Technology
  • Vibration Resistant
  • Fast Wire Insertion
  • Multi-Level Configuration
View Details
SDJ High Current Terminal Block

SDJ Series

High Current Terminal Block

  • Designed for High Load
  • Excellent Heat Dissipation
  • Screw Terminal Type
  • Industrial Grade
View Details
SN Double Deck Terminal Block

SND-15W

Double Deck Screw Terminal

  • Space-Efficient 2-Level
  • Rated Current: 15A
  • DIN Rail Mountable
  • Clear Polycarbonate Housing
View Details
View All Products

Why Choose Sipun Electric?

We combine innovation, quality, and customer service to deliver unmatched value in terminal block manufacturing.

Quality Assurance

ISO-certified processes and rigorous testing ensure every terminal block meets international standards.

Fast Delivery

Lead time of just 1–3 days for most orders. Rapid production and global shipping.

Global Trust

Exported to 50+ countries including USA, Europe, Middle East, and Southeast Asia.

24-Hour Support

Quick response to inquiries within 12 working hours. Dedicated technical support team.

20+
Years Experience
50+
Countries Served
1-3
Day Lead Time
12h
Response Time

Frequently Asked Questions

Are Sipun terminal blocks compliant with international standards?

Yes, our products comply with GB/T 14048.1, GB/T 14048.7, and equivalent IEC 60947-1 and IEC 60947-7-1 standards.

What is the typical lead time for orders?

Most orders are processed and shipped within 1–3 days. We prioritize fast delivery without compromising quality.

Do you offer OEM or ODM services?

Yes, we provide OEM and ODM solutions. Our R&D team can customize terminal blocks to meet your specific requirements.

How can I request a price list or product catalog?

Visit our official website or contact us directly. We respond to all inquiries within 12 working hours.

Where is Sipun Electric located?

Our factory is located in Liushi, Yueqing, Zhejiang, China – a major hub for electrical equipment manufacturing.

Get in Touch

Have questions or need a quote? Contact us today for expert support.

tony@sipunelectric.com
+86 13867743618
0086-577-27858113
WhatsApp: +86 13867743618
Visit Official Website
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