DC Extension Cable MC4 — 2m

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Overview

Why this product

Two metres of MC4 extension — the length most installers reach for first, and the one worth keeping spare in the van.

Where two metres lands

This is the span that covers a module mounted one position away from its inverter. On a dual-input microinverter feeding two panels, the second module is frequently a full panel-width from the unit, and two metres routes that comfortably with slack for a service loop at each end. It is the default answer on ground mounts, where inverters mount to the torque tube and modules sit above and across.

On buying spares

Cable length is the single most common thing to get wrong on a site survey, because nobody measures the routed path — they measure the gap. The path goes around the frame, under the rail, along the tube and back up, and it is reliably longer than the drawing implied. Carrying a couple of two-metre leads turns a return visit into a five-minute fix.

Practical notes

Route along structural members and secure with UV-rated ties; do not let cable bear on the module frame edge
Keep positive and negative runs together rather than separated — large loop areas between conductors invite induced voltage during nearby lightning
Leave a drip loop so water runs away from the connector, not into it

Also available in 1m, 3m and 4m. Verify connector compatibility before mixing with existing array cabling.