Connection cable NEO tools MC4 / DC 5.5×2.5 plug, length 2 m, model 90-148

Connection cable NEO tools MC4 / DC 5.5×2.5 plug, length 2 m, model 90-148 is a ready-made lead that connects photovoltaic systems with devices using a 5.5×2.5 mm DC barrel plug. The cable features an MC4-compatible solar connector on one end and a DC 5.5×2.5 plug on the other, enabling a direct link between solar panels or MC4-equipped junctions and chargers, inverters or small DC appliances. At 2 metres long, the cable offers moderate reach while keeping voltage drop and power loss low for typical low-voltage DC applications.

Advantages

This cable provides a standardized MC4 interface on one end and a common 5.5×2.5 mm DC barrel plug on the other, eliminating the need for custom adapters in many small solar and DC systems. Its construction is intended to withstand outdoor use typical for photovoltaic connections, and the 2 m length balances convenience and electrical performance. The plug-and-play design reduces installation time and simplifies temporary or portable setups where a reliable DC link is required.

Suitable for

• Connecting small photovoltaic panels or MC4-compatible strings to DC devices
• Linking solar chargers and charge controllers with DC barrel input
• Temporary or portable solar power setups and demonstrations
• Low-voltage DC testing and bench connections where MC4 to 5.5×2.5 interface is needed

Key specifications

• Cable length: 2 m
• Connector A: MC4-compatible solar connector
• Connector B: DC barrel plug 5.5×2.5 mm
• Intended use: low-voltage DC power transmission between solar outputs and DC devices
• Typical applications: small PV installations, battery chargers, inverters, DC-powered equipment

How to use

Ensure the solar panel string and the receiving device are correctly rated for the same polarity and voltage range before connecting. Plug the MC4 connector into the panel or MC4 junction by aligning and pushing until it locks; verify the connection is secure. Insert the 5.5×2.5 mm DC plug into the device's DC input socket, observing correct polarity. Avoid connecting under wet conditions if the device input is not IP-protected. After use, disconnect by releasing the MC4 latch and gently unplugging the DC barrel connector.

Usage recommendations

Inspect connectors for damage or corrosion before each use, route the cable to avoid sharp bends and mechanical strain, and ensure connections match voltage and polarity requirements. For permanent outdoor installations, consider additional weatherproofing at the device-side connection if the DC input is not rated for outdoor exposure.