A ratcheting crimping tool for MC4 solar connectors, sized for 2.5mm², 4mm² and 6mm² PV cable (14 to 10 AWG).
The ratchet matters more than it sounds. A plain plier crimp is only as good as your grip on the day; a ratchet will not release until the crimp has gone fully home, so every terminal comes out the same. On a roof, in the cold, that is the difference between a joint that lasts twenty years and one that develops resistance, runs warm and eventually fails.
MC4 connectors carry full string voltage. A bad crimp in a PV string is a genuine fire risk, not a nuisance — this is not a place to improvise with side cutters.
In the box
LY-2546B ratcheting crimping tool, 270mm
One pair of MC4 spanners for tightening and separating connectors
The spanners are the other half of the job — MC4s are designed not to come apart by hand, and the pair supplied lets you assemble and disassemble a connection properly.
UK — free delivery. Price includes UK VAT at 20%. EU & international — free delivery. Your country's import VAT and any duty are not included and may be collected by the carrier before delivery. Dispatched direct from our supplier. Typical delivery 10–20 working days.
