For household energy storage systems (power 5kW) with a limited budget, are there any cost-effective connectors available?

Q: For household energy storage systems (power 5kW) with a limited budget, are there any cost-effective connectors available?

A: The LD series waterproof connectors (IP67) are recommended. Their unit price is only 50% of that of the XT60 series, with a rated current of 20A (meeting the requirements of 5kW/220V systems). They can withstand a temperature range of -20~85℃ (suitable for home balcony and garage environments), and are easy to plug and unplug without tools, allowing users to install them independently. They also have an anti-reverse insertion design to avoid installation errors, making them ideal for household scenarios.