Stäubli
MC4 Solar Connectors (10 pairs)
Genuine Stäubli MC4 connector pairs — the industry-standard DC solar connector. 10 pairs.
£18 for 10 pairs
How it scores
Scores based on published manufacturer specifications and weighted criteria — not lab testing. Methodology.
Specifications
- Pairs
- 10
- Cable mm2
- 4-6
- IP rating
- IP68
- Max current a
- 30
What I noticed
Always use genuine Stäubli MC4 connectors — counterfeit connectors from unnamed brands fail at the crimp point and are a fire risk. The MC4 is the universal standard for panel-to-cable DC connections. You'll need two pairs per panel (plus one for each string junction). A 10-panel array on a single string needs 10 pairs plus 2 for the home-run to the inverter — order 15 pairs to have spares.
Tools required
A proper MC4 crimping tool (~£15–25) is essential — don't use generic pliers. The crimp must deform the metal sleeve in a very specific way to pass the retention test. Also get the MC4 spanner tool (~£5) for tightening the locking ring.