PowerBOX 120A — Quick Installation Guide

Intended use: safe and organized distribution of battery power to the starter, alternator, and PDM using SURLOK Plus® connectors.


1) Preparation

  • Select a stable and level mounting surface.
  • Completely disconnect the power supply before starting work.
  • Prepare the required tools, especially a wire crimping tool designed for SURLOK Plus® connectors.

2) Mounting

  • Install the PowerBOX in a location that is easily accessible for maintenance.
  • Secure the housing to the mounting surface using M4 screws.
  • Ensure the PowerBOX is firmly mounted and stable.

3) Cable Connection

  • Connect the +12 V (positive) cable from the battery to the PowerBOX input.
  • Connect cables from the PowerBOX outputs to the PDM / alternator / starter according to the markings on the housing.
  • If required, any output may be used for any +12 V consumer or device.
  • Use only high-quality cables with a 25 mm² cross-section.

4) SURLOK Plus® Connectors

  • All wires in SURLOK connectors must be crimped using the appropriate tools.
  • Ensure each connector is fully locked in place (“click”).

5) Check Before Power-On

  • Check for exposed wires or incorrect connections.
  • Ensure all screw connections are properly tightened.
  • Reconnect the battery power supply.

Safety Notes

  • Never work on the system with power connected.
  • PowerBOX maximum continuous current rating: 120 A.
  • Do not use cables with an incorrect cross-section — this can cause overheating and fire risk.