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Jonard SPC-MC4 MC4 crimper with black oxide finish and dual-component grips

Jonard

Jonard SPC-MC4 MC4 Crimper 14 12 10 AWG 2.5 4.0 mm2

SKU CH-MMRF-713CJ

Crimps MC4 connectors onto 14, 12, or 10 AWG solar wire with parallel jaws, adjustable pressure gear, ratchet action, and hardened carbon steel construction

  • ColorTransparent
  • Crimps 14, 12, 10 AWG solar wire
  • Adjustable pressure gear ensures consistent crimps
  • Ratchet mechanism speeds up installation
  • Hardened carbon steel resists wear
  • Dual-component grip reduces hand fatigue

Solar connector crimper for installers

The Jonard SPC-MC4 crimps MC4 connectors onto 14, 12, or 10 AWG solar wire with a parallel-jaw, ratchet-driven action. Adjustable pressure gear and a self-locking mechanism produce repeatable crimps on 2.5, 4.0, and 6 mm² conductors. Hardened carbon steel jaws with black oxide finish resist wear through daily field use.

Wire range that determines fit

This tool accepts only the three listed AWG sizes and their metric equivalents; it will not crimp larger or smaller conductors. An optional MC3 die (SPD-MC3) extends compatibility to MC3 connectors, but that die is sold separately. Buyers who need to terminate other connector types or wire gauges must select a different crimper.

Consistent force over long sessions

The ratchet holds the jaws closed until the crimp reaches the set pressure, then releases automatically, reducing hand fatigue during extended array builds. Dual-component grips cushion the palm and fingers so torque stays steady from the first connector to the last. Hardened steel maintains calibration without frequent readjustment.

Highlights

  • Crimps 14, 12, 10 AWG solar wire
  • Adjustable pressure gear ensures consistent crimps
  • Ratchet mechanism speeds up installation
  • Hardened carbon steel resists wear
  • Dual-component grip reduces hand fatigue

Specifications

BrandJONARD TOOLS
ColorTransparent

Questions about this item

What wire sizes does the 14 / 12 / 10 AWG rating actually cover on a job site?

It crimps solar cables from 14 AWG up to 10 AWG, matching the 2.5, 4.0 and 6 mm² cross-sections used in most PV installations.

How does the built-in ratchet mechanism limit the force applied to each MC4 contact?

The ratchet only releases once the jaws have reached the factory-set pressure, so every crimp meets the same compression without over- or under-crimping.

What bench space or mounting does the hardened carbon-steel frame need for comfortable use?

The dual-component grips are hand-held; no bench mount is required, and the compact frame fits in a standard tool pouch for rooftop work.

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