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Reliable Terminal Blocks for Industrial Excellence

NJSMW manufactures high-performance electrical connectors and terminal blocks trusted in automation, power distribution, and control systems worldwide.

Terminal Block Product Electrical Connector Industrial Application

Engineered for Durability & Safety

NJSMW, also known as Nanjing Sanmenwan Electronic Co., Ltd., is a leading manufacturer of terminal blocks and electrical connectors based in Nanjing, China. With years of experience in industrial electrical components, we deliver reliable, high-quality solutions for power transmission and signal distribution.

Our products are designed to meet international standards and are widely used in automation systems, power supplies, control cabinets, and machinery across diverse industries.

15+
Years Experience
50+
Global Clients
NJSMW Brand

Our Product Range

High-quality terminal blocks built for performance and longevity

UK 1.5N

UK 1.5N Terminal Block

Compact design for low-current applications. Rated up to 1.5mm² wire size.

  • • Rated Voltage: 400V
  • • Current: 10A
  • • Material: High-grade PA66
UK 2.5N

UK 2.5N Terminal Block

Ideal for control circuits and automation panels. Supports 2.5mm² conductors.

  • • Rated Voltage: 600V
  • • Current: 16A
  • • Flame Retardant: UL94-V0
UK 3N

UK 3N Terminal Block

Robust connector for medium-load applications. Suitable for industrial control systems.

  • • Rated Voltage: 600V
  • • Current: 20A
  • • Operating Temp: -40°C to +110°C
UK 5N

UK 5N Terminal Block

High-capacity terminal for power distribution. Accepts up to 5mm² wires.

  • • Rated Voltage: 600V
  • • Current: 32A
  • • Insulation: High Dielectric Strength
UK 6N

UK 6N Terminal Block

Enhanced mechanical strength for heavy-duty environments. 6mm² compatibility.

  • • Rated Voltage: 690V
  • • Current: 40A
  • • Vibration Resistant Design
UK 10N

UK 10N Terminal Block

High-power terminal for industrial machinery and main distribution panels.

  • • Rated Voltage: 800V
  • • Current: 63A
  • • Double Clamping Technology
UK 16N

UK 16N Terminal Block

Designed for high-current applications. Supports 16mm² conductors.

  • • Rated Voltage: 1000V
  • • Current: 100A
  • • Copper Parts: Tin-plated
UK 35N

UK 35N Terminal Block

Heavy-duty power connector for main circuits and large-scale installations.

  • • Rated Voltage: 1000V
  • • Current: 175A
  • • Suitable for Busbar Systems

Why Choose NJSMW?

Engineered for reliability, safety, and industrial performance

Certified Quality

All products meet international safety standards including IEC and UL. Rigorous testing ensures long-term reliability.

High Performance

Optimized for high current, voltage resistance, and thermal stability in demanding industrial environments.

Global Support

Serving customers worldwide with responsive service, technical support, and fast delivery options.

1000+
Units Shipped Annually
20+
Countries Served
99.8%
Customer Satisfaction
15+
Years in Industry

Frequently Asked Questions

What types of terminal blocks does NJSMW manufacture?

NJSMW produces a wide range of terminal blocks including UK 1.5N, UK 2.5N, UK 3N, UK 5N, UK 6N, UK 10N, UK 16N, and UK 35N series, suitable for various current and voltage requirements.

Are NJSMW products compliant with international standards?

Yes, our terminal blocks are designed and tested to meet IEC, UL, and other relevant international safety and performance standards.

Where is NJSMW located?

NJSMW (Nanjing Sanmenwan Electronic Co., Ltd.) is headquartered in Nanjing, China, at No.4-1, Jianning Road, Gulou District, Nanjing 210000.

How can I place an order or request a quote?

You can visit the official website at connectorblock.com to contact the company directly for inquiries, quotes, and ordering.

Get in Touch

Have questions about our products or need technical support?

For inquiries, please contact NJSMW through their official website.

Visit Official Website

Email: info@connectorblock.com

Phone: +86 25 58185573

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