Product Details:

SIEMENS 16353-43-12 is an I/O expander board kit designed for the classic Moore 353 series single-loop process controllers, which expands the available analog and discrete I/O channels of the host controller to handle extra process signals and control outputs. The kit contains the expander PCB board, matched precision compensation components, signal resistors and connector accessories required for internal assembly inside the 353 controller housing. After installation, it enables the controller to collect more temperature, pressure, flow and liquid level measurement signals and drive additional alarm or regulating output points, without replacing the main control board of the 353 unit. The expander board adopts industrial-grade PCB layout with complete EMC shielding, built-in signal filtering and isolation circuits to reduce crosstalk between original controller channels and newly added expansion channels, maintaining stable signal accuracy under electromagnetic interference inside control cabinets.

It is installed internally within the controller enclosure and must match the corresponding hardware revision version of the 353 controller, the -12 suffix represents this specific component configuration. The expanded channels can be set for signal type, measurement range and alarm functions via the controller front panel or dedicated configuration software to satisfy diversified loop control requirements. Before installation, technicians need to verify the controller housing version, pin definition and matching terminal accessories to ensure correct wiring and fit. Every spare kit will complete continuity inspection, signal accuracy test and fit compatibility verification before shipment to guarantee stable coordination with compatible Moore 353 controllers. It is widely stocked as upgrade and expansion spare parts for legacy single-loop process control units.

Industry Applications: Applied in petrochemical auxiliary skids, gas flow control systems, boiler closed-loop control rooms and water treatment facilities for conventional analog signal acquisition and valve regulating output.

Note: Confirm SAM combined I/O feature and hardware revision before ordering

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