Link to specific ones suitable for DC connections please?
They only come in NEMA configurations for 120V and up AFAIK. Not an ideal solution and IMO overkill for what he's after.
Cable glands are probably the default way but ideally you'd have a round shape to seal, which for solar would probably mean a gland for each conductor.
But there's all sorts of ways to achieve a watertight bulkhead.
Like these Deutsch.
Or one of the circular types, like these Delphi. There's also Amp, Tyco and other options.
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