Description
FISHER
EMERSON
IIT P/N.: 057-0771-01-018
ELECTRICAL ASSEMBLY
CUST P/N.: 20B5076X012
REV.: D
P.O. :4780040471
P/N.: 057-0771
The Fisher Emerson Electrical Assembly (IIT P/N 057-0771-01-018, Customer P/N 20B5076X012, Rev D) is a purpose-built control hardware component designed for integration within PLC and HMI automation systems. As part of Emerson’s industrial and marine automation portfolio, this electrical assembly serves as a core interface or internal sub-assembly within automated control panels, supporting reliable signal processing, power distribution, or I/O management depending on system configuration. Its role within PLC and HMI architectures makes it operationally significant for vessel automation, machinery monitoring, and process control applications onboard a wide range of vessel types.
Key Features
✓ Manufactured by Fisher Emerson under IIT part number 057-0771-01-018, revision D, ensuring traceability and configuration control within the supply chain.
✓ Specific electrical ratings, voltage ranges, and signal characteristics are subject to confirmation based on the parent system configuration — buyers should refer to system documentation or nameplate data.
✓ Designed for integration into Emerson PLC and HMI control architectures; compatibility with specific panels or controllers should be verified against the customer part number 20B5076X012 and system revision.
✓ Installation context — including mounting location, enclosure type, and environmental suitability — depends on the host system design; typical marine installations are within protected control rooms or equipment panels.
✓ As a revision-controlled sub-assembly, direct like-for-like replacement is recommended to maintain system integrity; retrofit or upgrade suitability is subject to engineering confirmation.
Marine Applications
✓ Automation and control panel maintenance aboard offshore platforms, FPSOs, and production vessels utilising Emerson-based PLC systems.
✓ Machinery monitoring and alarm management systems on cargo vessels, tankers, and bulk carriers with integrated HMI control infrastructure.
✓ Engine room automation upgrades or spares provisioning on vessels where Fisher Emerson control hardware forms part of the installed system.
✓ Retrofit and modernisation projects replacing end-of-life electrical assemblies within existing Emerson PLC and HMI control cabinets.
✓ Commissioning and system validation support for newbuild or converted vessels integrating Emerson automation solutions across critical onboard systems.
Why Marine Engineers Choose
Fisher Emerson electrical assemblies are valued for their traceability, revision control, and compatibility within established automation platforms — making them a reliable choice for planned maintenance, emergency spares, and system upgrades where control system continuity is essential.
Ideal For
Offshore support vessels, FPSOs, tankers, bulk carriers, cargo ships, and any commercial or industrial vessel operating Emerson Fisher PLC & HMI automation systems requiring verified spare or replacement electrical assemblies.
Technical Support & Compliance
Remote troubleshooting guidance, installation support, and commissioning assistance are available to help confirm correct application and integration of this assembly within your control system. Testing, repair assessment, and retrofit evaluation can be arranged subject to confirmation. To verify compatibility and ensure accurate supply, buyers are encouraged to share nameplate photographs, the full part number and revision, any relevant system drawings or schematics, the parent panel or controller model and software version, and vessel name or IMO number where applicable. All compatibility and suitability assessments are subject to confirmation based on the information provided.




