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Haul truck and excavator at a mine site

Industry solutions

Mining, Agriculture & Heavy Equipment

Configurable auxiliary power control and circuit data for mobile plant and agricultural machinery.

The challenge

Electrical downtime can disrupt production and maintenance plans.

Mining and farm machinery work in dust, vibration, heat and washdown, where an electrical fault can stop a machine.

Unplanned downtime

A single electrical fault can idle a machine and hold up the whole operation.

Harsh conditions and ad-hoc wiring

Vibration, dust and moisture can wear relays, fuses and add-on wiring over time.

Poor visibility

Without retained logs, intermittent electrical symptoms can be hard to reconstruct.

How Hardwire helps

Configurable auxiliary power control for mobile plant.

Solid-state switching

Solid-state outputs replace mechanical relay switching on auxiliary circuits.

IP67 enclosure

The PDM28 is rated IP67 and −55 to 90 °C (manufacturer specification).

Circuit data

Current and fault data for connected auxiliary circuits; remote monitoring not included.

Diagnostic logs

Logged circuit events that can help narrow fault-finding.

Typical applications

Where it’s used on the machine.

Candidate 12/24 V auxiliary circuits on mobile plant and farm machinery, subject to load limits and machine design approval. Hazardous-motion functions stay on circuits designed and approved for them.

Work lights

LED work and flood lights, with inrush checked.

Cab HVAC controls

Blower and control supplies in the cab.

Telematics

Fleet tracking, payload and monitoring units.

Camera supplies

Reversing and proximity camera power.

Selected valve-control interfaces

Only where the machine design approves it.

Other auxiliary supplies

Radios, beacons and dealer-fitted equipment.

White paper

Electrical fire hazards on mobile plant

Free white paper

Electrical fire hazards on mobile plant: what incident reports show

What NSW and Queensland regulator incident reports show, with their limits, and controls maintenance teams can consider.

White paper – Mining, Agriculture & Heavy Equipment

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Queensland’s mines regulator advises using “sound engineering principles when fitting after-market equipment.”

Resources Safety & Health Queensland, Safety Bulletin 158  ·  Read the bulletin →

40 of 179

NSW mobile plant fire reports in 2024–25 recorded wiring or “other electrical component” as the failed part.

Source: NSW Resources Regulator, 2025

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