Next-Level Protection: Connector IP Ratings for Demanding Conditions

Connectors, as critical components in electrical and electronic systems, are widely used in challenging environments such as humidity, high temperatures, and dust. Their protection ratings directly determine the stability and service life of devices under harsh conditions. This article focuses on connector IP (Ingress Protection) ratings, particularly IP67, IP68, and IP6K9K, analyzing their technical features and application differences.

Overview of IP Ratings

The IP rating is composed of two digits: the first indicates dust protection (0–6), and the second indicates water protection (0–8). The higher the number, the stronger the protection. Common connector IP ratings include IP67, IP68, and IP6K9K, all with a first digit of “6,” meaning fully dust-tight.

· IP67: Immersion Protection
Withstands immersion in 1 meter of water for 30 minutes without damage. Commonly used in outdoor lighting, home appliances, and automotive sensors.

· IP68: Long-Term Immersion Protection
Designed for continuous immersion beyond 1 meter, suitable for underwater or long-term submersion applications such as marine exploration and EV power systems.

· IP6K9K: High-Pressure, High-Temperature Jet Protection
Withstands high-pressure, high-temperature water jets, ideal for military, petrochemical, and marine environments where extreme protection is required.

（Greenconn’s Protection Technology Framework）

Greenconn’s Protection Technology Framework

To ensure long-term connector reliability in harsh environments, Greenconn has developed a complete protection technology framework across four key areas:

1. Structural Design

· Reinforced sealing structures and waterproof gaskets to prevent leakage.

· Optimized designs to eliminate micro-leakage channels and enhance sealing integrity.

2. Material Engineering

· High-temperature and anti-aging materials to ensure stable long-term performance.

· Customized raw materials and precision machining to eliminate visible gaps and enhance protection.

3. Verification and Testing

· Static water tests: IP67 (1 m × 30 min) and IP68 (1 m × 2 hrs).

· Dynamic and accelerated aging tests: vibration and stress simulations to verify sealing stability.

4. International Certification and Standardization

· Compliance with GB/T, IEC, and EN standards for testing methods and evaluation criteria.

· Collaboration with third-party labs to ensure certification credibility and traceability.

（Greenconn's Automotive-Grade Waterproof Connectors）

Greenconn Waterproof Series: Multi-Scenario Protection Solutions

Greenconn’s Waterproof Series includes the GT Series and GA01 Series, both meeting IP67 and above standards while addressing diverse application requirements:

· GT Series
Engineered for extreme environments, supporting IP68 for long-term underwater conditions. With current capacity up to 13A per contact, it delivers high performance with cost efficiency. Widely used in heavy-duty equipment, agricultural machinery, and new energy applications requiring both high current capacity and reliability.

· GA01 Series
Rated IP67, with a wire-to-board assembly design for enhanced installation flexibility and system integration. Compact and lightweight, it is well-suited for automotive sensors, LED lighting, and home appliances requiring both miniaturization and reliable protection.

With the GT Series offering deep-water protection and high-current capability, and the GA01 Series providing flexible assembly and compact design, the Greenconn Waterproof Series covers a broad range of needs, from heavy-duty equipment to consumer electronics, ensuring stable connections in complex environments.

Connector protection ratings not only determine stability in harsh environments but also directly affect service life. Through innovative design, high-quality materials, and rigorous validation, the Greenconn Waterproof Series delivers powerful protection across industries. Looking ahead, Greenconn will continue to enhance protection performance, expand testing standards, and provide highly reliable connection solutions for customers worldwide.