Electronic Components Connectors Manufacturer

About KLS

A leading Chinese manufacturer of electronic connectors with over two decades of innovation and excellence.

Ningbo KLS Electronic Co., Ltd

Founded in 2002, KLS has grown into one of the top ten electronic component enterprises in China. With over 10 wholly-owned and holding subsidiaries, we achieve annual sales exceeding $30 million USD.

Our products are exported to more than 70 countries and regions, including the United States, Germany, the UK, Japan, South Korea, Russia, Brazil, and South Africa. We work closely with local distributors to ensure fast response times and comprehensive technical support.

KLS holds ISO9001 certification and is recognized by Bureau Veritas (Supplier Assessment Report No.: 4488700_T). Over 80% of our products carry UL, VDE, CE, and RoHS certifications, ensuring compliance with international standards.

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Our Product Range

One-stop purchase with over 150,000 product specifications. High-reliability connectors for every industry.

Coaxial Connectors (RF)

High-frequency RF connectors for telecom, broadcasting, and wireless systems. Available in SMA, BNC, N-type, and TNC configurations.

LED Lighting Connectors

IP67/IP68 waterproof connectors for indoor and outdoor LED lighting systems. High durability, corrosion-resistant materials.

Circular Connectors

Robust circular connectors for industrial automation, medical devices, and military applications. Available in metal and plastic housings.

Terminal Blocks

Screw, spring-cage, and PCB terminal blocks for power distribution, control panels, and electrical enclosures. UL & VDE certified.

Waterproof Connectors

IP67 to IP69K rated connectors for harsh environments. Ideal for marine, agricultural, and outdoor industrial applications.

Automotive Connectors

High-vibration resistant connectors for automotive wiring harnesses, sensors, and control units. Compliant with automotive standards.

Ethernet Connectors

RJ45 and industrial Ethernet connectors with shielding options. Support Cat5e, Cat6, and Cat6A for reliable data transmission.

Audio Connectors

XLR, RCA, 3.5mm, and 6.35mm connectors for professional audio equipment. Gold-plated contacts for superior signal integrity.

Battery & Power Connectors

High-current connectors for battery packs, power supplies, and energy storage systems. Designed for safety and low resistance.

New Energy Vehicle Connectors

High-voltage connectors for EVs and charging stations. Designed for safety, durability, and fast charging compatibility.

View All 150,000+ Specifications

Why Choose KLS?

Full in-house production, rigorous testing, and global support for your connector needs.

In-House Production

Complete control over mold processing, manufacturing, and testing ensures consistent quality and shorter lead times.

VDE Certified Lab

Our in-house VDE-certified laboratory conducts mechanical and electrical tests following UL and IEC standards.

OEM/ODM Services

Custom design, prototyping, and mass production based on your specifications and blueprints.

Request Custom Quote

Frequently Asked Questions

What certifications do KLS products have?

Over 80% of our products carry UL, VDE, CE, and RoHS certifications. We also comply with ISO9001 standards and are verified by Bureau Veritas.

Can KLS provide custom connector solutions?

Yes, we offer full OEM/ODM services including design, prototyping, and mass production based on customer blueprints and requirements.

What is the delivery time for standard and custom orders?

Standard products ship within 7–15 days. Custom orders typically take 20–30 days depending on complexity.

Which industries do KLS connectors serve?

We serve automotive, industrial automation, LED lighting, telecommunications, medical devices, new energy vehicles, and consumer electronics.

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KLS Connector – Precision Electronic Connectors for Global Industries