The AllSpark MC4 Solar Crimping Tool (CPA-MC4CRIMP-2) is purpose-built for making professional-grade, gas-tight terminations on cylindrical solid copper MC4 contacts in 4mm², 6mm², and 10mm² cable sizes — giving you a wider crimping range than most standard MC4 crimpers on the market. Its precision-machined steel jaws deliver a consistent, repeatable crimp that meets IEC 62852 connector assembly standards, ensuring low-resistance, weatherproof connections that won't fail under Australian heat and UV exposure. The ratchet mechanism locks the handle closed until a full crimp is achieved, eliminating under-crimped connections that can cause arcing, overheating, or power loss in your solar system.

This tool is the essential companion for anyone wiring solar panels to a caravan, camper trailer, motorhome, RV, or off-grid 4WD setup. Whether you're building a rooftop solar array for a dual-battery system, extending panel strings on a remote station, or repairing damaged MC4 connectors in the field, the CPA-MC4CRIMP-2 handles the job cleanly and correctly. The support for 10mm² cable makes it ideal for high-current runs between large solar arrays and MPPT charge controllers — a cable size routinely skipped by cheaper crimpers — so you can wire your off-grid system to handle genuine Australian outback power demands without compromising on connection quality.

Key Features

• Crimps cylindrical solid copper MC4 contacts in 4mm², 6mm², and 10mm² cable sizes
• Ratchet mechanism ensures full crimp cycle is completed before jaws release
• Precision-machined steel jaw dies for consistent, gas-tight contact terminations
• Compatible with standard MC4 and MC4-compatible solar connector bodies
• Compact, ergonomic handle design suited to rooftop and confined-space wiring work