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Practical guides on solar, energy storage and waterproof connector selection, installation and troubleshooting — written for engineers, EPC teams and procurement managers.
IP67 vs IP68 waterproof connectors
The short version: IP67 means the connector survives 30 minutes in 1 meter of water. IP68 means whatever the manufacturer says it means—depth, duration, conditions, all set by the test…
Screw-Free vs. Screw-Type Waterproof Connectors: Selection Guide
Screw-Free vs. Screw-Type Waterproof Connectors: How to Choose Choosing between screw-free vs screw-type waterproof connectors is not simply a matter of installation speed. Engineers must also consider conductor type, cable…
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MC4 vs PV4 Connectors: What’s the Difference and Are They Compatible?
PVLinkTech Technical Blog · Guides for Buyers, Mechanical Designers and Procurement Teams · Reviewed by the PVLinkTech Engineering Team MC4 vs PV4 connectors: what is the difference, and are MC4…
Connector Sample Testing: What to Check Before You Approve
Key Numbers Before You Unpack Item Value or source Contact resistance test current Not more than 100 mA, with test voltage not more than 20 mV (IEC 60512-2-1, Test 2a)…
Why Do Solar Connectors Overheat or Melt? 8 Root Causes and What to Check
PVLinkTech Technical Blog → Guides for Buyers, Mechanical Designers and Procurement Teams Reviewed by Peter Wang, Technical Director, PVLinkTech Updated 2025-8 Most solar connector overheating starts at one of two…
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