Impressed Current Cathodic Protection (ICCP) Control Systems
A New Generation of ICCP System for Concrete and Steel Infustructure
MicroNex is a leading Australian manufacturer of cathodic protection control systems (commonly known as transformer rectifier units - TRU), trusted for safeguarding reinforced concrete structures and steel assets against corrosion. Our systems are deployed across bridges, wharves, pipelines, and industrial facilities throughout Australia, delivering reliable, long-term protection for critical infrastructure.
Non-Proprietary Components
MicroNex offers the first global non-proprietary cathodic protection control systems.
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Our system provide clients with total control utilising an open Modbus protocol with no vendor lock-in.
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Our system:
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Communicate via open Modbus RS485 protocol
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Utilise commercially available remote communication modems​. Remote communication can be fully maintained by MicroNex or the Client.
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Can be operated with no reliance on remote servers or software
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Modular Smart Design
MicroNex systems are designed for reliability and simplicity. Every component supports straightforward operation and complete independence from external systems.
System highlights include:
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​• Modular DIN rail components for flexible configuration
• Compact form factors with scalable, serviceable layouts
• Fully isolated modules with no central screen or computer dependency
• Self-contained power supplies with dedicated front panel control and display
• Full functionality without reliance on external systems
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DC power controllers with manual control and integrated RS485 Modbus
A simple timer for easy and
easy current interrupting
Manual-first Operation with Seamless Remote Access
MicroNex systems operate in full manual mode by default, ensuring direct control at all times.
Remote monitoring and adjustment is available as an option with a software-free web interface.​
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Remote features include:
• Real-time logging of voltage and current through a secure cloud dashboard
• System link for remote testing and adjustment
• Complete manual functionality preserved at every stage
• All tests, measurments and adjustments are instant and live
Cloud Dashboard
Remote monitoring and control interface
Full Service Provider
MicroNex provides optional design, installation, and ongoing monitoring services.
We can maintain all aspects of the system, including remote communication services.
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We can supply new systems, update existing installations, and retrofit into existing enclosures.
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We can also provide full monitoring and maintenance services throughout Australia in accordance with Australian Standards.
Australian Manufactured, Globally Sourced, Fully Supported
MicroNex systems are manufactured in Sydney, Australia using high-quality components sourced from trusted suppliers worldwide.
We continuously innovate, provide system upgrades, and develop all software locally to ensure reliability and transparency.
All support is local and direct, giving you fast, knowledgeable assistance when you need it.
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Australian Standard AS 2832.5—2008 (R2018)
Technical Report No. 73 Cathodic Protection of Steel in Concrete
TfNSW technical standards for ICCP control systems