01
Control electronics
Timers, frequency switches, alarms, interlocks and application-specific control modules.
Australian Made Since 1978 Quality Reliability Local Support
Product development · Melbourne
Electronics designed around the machine, the operator and the job.
From field problem to working hardware, Bolec develops rugged 12V and 24V controls, engine protection systems, timers, panels and wiring harnesses for real Australian operating conditions.
Dust, heat & vibration Installable & serviceable Prototype to repeat supply
Idea → prototype → field-ready product · Built and supported in Melbourne
45+ years developing practical electronics
80+ products across control and protection
12–24VDC mobile and industrial specialists
Melbourne design, assembly and support
What we develop
Working hardware, not just a clean concept drawing.
Electronic design is only part of the job. We also consider installation, wiring, operator use, fault finding, repair and long-term supply.
02
Engine protection
Monitoring, warning and automatic shutdown systems for engines, pumps and generators.
03
Panels & harnesses
Enclosures, displays, connectors, labels and custom wiring matched to the installation.
04
Production support
Prototypes, repeat assembly, documentation, repairs and product lifecycle support.
Product development in practice
Products shaped by real operating requirements.
Current Bolec products show how field requirements become focused, serviceable electronic solutions.
Case 01 
Irrigation · Engine protection
BEM502IRN Protection Panel
An IP56 panel for irrigation pumps and diesel engines, combining multi-sensor monitoring, automatic shutdown, programmable timing, alarms and stored diagnostics.
IP56 enclosure Automatic shutdown Fault memory
View BEM502IRN Case 02 
Mining · Mobile plant · OEM
SS501 Speed & RPM Switch
A 12/24V microprocessor frequency switch with dual inputs and relay outputs for overspeed alarms, underspeed shutdown, road-speed limits and equipment interlocks.
Dual channel 12/24VDC Programmable setpoints
View SS501 Case 03 
Agriculture · Stationary diesel
DCT24ENC30A Timer
A 24-hour digital countdown timer in a weatherproof enclosure, using a replaceable 30A automotive relay to control stop-solenoid applications.
Weatherproof 30A relay Operator-friendly
View DCT24ENC30A Case 04 
OEM · Industrial · Marine
Custom Wiring Harnesses
Engine-panel harnesses, brake looms, extensions, sensor assemblies and multi-branch wiring built from a drawing, old loom or sample for one-off or repeat production.
Made to specification Low volume Repeat supply
Explore custom harnesses How we work
From equipment problem to supported product.
We prove the important decisions early, then carry the design through physical build, documentation and ongoing supply.
01
Define
Equipment, voltage, signals, environment, quantities and required action.
02
Design
Electronics, interface, enclosure, connectors, wiring and service strategy.
03
Prototype
Build, bench test and refine a working unit against real operating needs.
04
Produce & support
Repeat manufacture, documentation, repairs and lifecycle support.
Explore Bolec solutions
See where our electronics are used.
Continue into Bolec’s application pages and established product ranges. The images below retain their original horizontal 3:2 ratio.
Show us the equipment, the wiring—or simply the problem.
Send a drawing, photo, existing unit or plain-English description. Bolec will suggest a practical starting point for prototype and production.
Bolec Electronics · Heidelberg West, Melbourne · sales@bolec.com.au