Created on 01.07

Why do 7kW charging piles favor this pair of 14-pin connectors? Disassembly of YHR plugs and sockets to see how they withstand the test of high-frequency charging and discharging!

With the explosive growth of new energy vehicles today, 7kW household/commercial AC charging piles have become the market mainstream. But have you ever thought: dozens of plug-ins and unplug-ins every day, outdoor sun and wind exposure, long-term power-on heating... under these harsh working conditions, what guarantees the stable connection of the power module inside the charging pile?
The answer lies in a pair of highly reliable connectors that are "quietly" widely adopted by the industry –
Shenzhen Yonghao Run Technology Co., Ltd.'s 14-core rectangular connector combination:
  • Plug Model
: YHR MPC-14G12TJW1-6 (Part Number: 50-643-00485)
  • Socket Model
: YHR MPC-14G12ZKY1-7 (Part Number: 50-653-50018)
This "golden couple" is silently supporting the safe operation of thousands of 7kW charging piles.

🔌 Why do 7kW charging piles specifically need it?

Although 7kW AC piles are not high in power, their usage frequency is extremely high – home users may charge once a day, and shared piles may be plugged and unplugged more than ten times a day. This means:
  • Connectors need to withstand
Long-term 32A AC current (7kW @ 220V ≈ 31.8A)
  • Must support
Signal communication (e.g., CP/PP detection, CAN/LIN) and high-power isolation
  • Outdoor installation requirements
Waterproof, temperature resistant, aging resistant
And YHR's pair of 14-core connectors are tailor-made for such scenarios:
✅ Integrated power + signal design
  • 4 groups of φ3.0mm
Red copper plated gold power terminal, rated 40A@1000V DC (AC equivalent is better), easily covers 7kW demand
  • 10 groups of φ0.76mm
Tin bronze signal terminals, specifically for control guidance and status feedback, with strong anti-interference capability
✅ Military-grade reliability, built for "daily use"
  • Insertion/withdrawal cycles ≥10,000 times (far exceeding national standard of 3,000 times)
  • Operating temperature -55℃ to +125℃, unaffected by Southern heatwaves or Northern winters
  • Vibration resistance, shock resistance, 48-hour salt spray test all passed, IP protection rating can reach IP65+ with structural cooperation
✅ Precise matching, eliminating "compatibility risks"
Officially designated: MPC-14G12TJW1-6 plug only matches MPC-14G12ZKY1-7 socket. This original factory closed-loop design avoids risks such as increased contact resistance and local overheating caused by tolerance accumulation or material inconsistencies – which is crucial for long-term operation of charging piles.

🛠️ Advantages in practical applications

  • Simplified wiring harness design
: A single 14-core cable transmits power + communication simultaneously, reducing the number of interfaces and improving overall system integration
  • Reduced after-sales failure rate
: Significantly reduced issues of "cannot charge" and "communication interrupted" caused by connector failure
  • Supports quick plug and play
: In modular power supply design, faulty units can be quickly replaced, improving operation and maintenance efficiency

✅ Conclusion: Small components, big responsibility

In the "red ocean" market of 7kW charging piles, it's not just about price, but also long-term reliability and user experience. Choosing high-specification connectors that have been market-proven, like YHR MPC-14G12TJW1-6 (50-643-00485) + MPC-14G12ZKY1-7 (50-653-50018), is like adding an "invisible insurance" to your product.
Shenzhen Yonghaorun Technology Co., Ltd. Focus on R&D and manufacturing of high-reliability connectors | Customization support | RoHS/REACH compliant Official website/Contact: 19925279918 Mr. Xu | mailto:xuyifeng@yonghaorun.com
Charging piles can be affordable, but safety cannot be compromised.
Choose the right connector for peace of mind with every charge.

Copyright © 2025, Shenzhen YHRise Technology Co., Limited. All Rights Reserved.

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