Emerson 9191-FP
Emerson 9191-FP
Emerson 9191-FP
Emerson 9191-FP
Emerson 9191-FP
Emerson 9191-FP
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9191-FP

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The Emerson 9191-FP 4-Segment Power Module is a high-performance fieldbus power supply with four isolated channels, 28–32 V DC output, 0–250 mA per segment, and configurable N+1 redundancy for reliable industrial operation.
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Technical specifications for 9191-FP

  • Manufacturer:
    Emerson
  • Part Number:
    9191-FP
  • Product Family:
    DeltaV
  • Product Type:
    4-Segment Power Module
  • Stock:
    4
  • Number of channels:
    4
  • Voltage (DC):
    28.0 - 32.0V
  • Design current (per segment):
    0 to 250mA
  • Current limit:
    >320mA
  • Minimum load:
    0mA
  • Segment output voltage:
    <16V
  • Ambient temperature - operating:
    –20°C to +60°C (optimum orientation), –20°C to +50°C (non-optimum orientation)
  • Ambient temperature - storage:
    –40°C to +85°C
  • Relative Humidity:
    < 95%, non-condensing
  • Ingress protection:
    IP20 to BS EN 60529 (Additional protection by means of enclosure)
  • Weight:
    0.2 kg
  • Estimated shipping dimensions:
    4.2x15x13.8cm
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Application Scenarios Operation Compliance

Features:

  • Emerson 9191-FP enables independent power distribution across multiple segmented control areas, improving system flexibility in modular automation designs.
  • Supports up to four isolated system segments, helping maintain structured power management in complex industrial environments.
  • Designed for segmented DC architecture, allowing Emerson 9191-FP to enhance stability and separation between control zones.
Emerson 9191-FP is widely applied in industrial automation systems where segmented power control is required for distributed architectures. It supports independent energy routing, which helps reduce cross-interference between system sections. In modular control environments, Emerson 9191-FP improves operational clarity and system organization. Its structure is particularly suitable for facilities that rely on multi-zone process control. Emerson 9191-FP also contributes to more stable system behavior in complex power distribution networks.

In advanced industrial setups, Emerson 9191-FP provides a reliable framework for separating power pathways across different functional areas. This improves maintenance efficiency by isolating potential issues within individual segments. Emerson 9191-FP is commonly used in control panels and automation cabinets where structured power segmentation is critical. Its design supports scalable system expansion without compromising distribution integrity. Emerson 9191-FP enhances overall system reliability in high-demand operational environments.

Emerson 9191-FP plays an important role in supporting modular industrial systems that require clear segmentation of power resources. It is well-suited for applications involving distributed control logic and multi-unit coordination. Emerson 9191-FP helps engineers maintain consistent power flow across separate operational zones. This makes it valuable in industries prioritizing uptime and controlled energy allocation. Emerson 9191-FP ultimately strengthens system architecture by enabling organized and independent segment-level power delivery.

The 9191-FP Emerson 4-Segment Power Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Emerson 9191-FP 4-Segment Power Module Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Emerson 9191-FP 4-Segment Power Module Specs

General

  • Manufacturer Emerson
  • Model 9191-FP
  • Condition New Original ready stock
  • Product Family 9192-FP,9197-BLK
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Fine Chemicals: Power supply for field instruments in distributed control systems of large-scale, multi-functional chemical plants.
  • Offshore Oil and Gas: Deployed in space-constrained and harsh environments on oil production platforms with isolated FF network segments.
  • Long-distance pipelines: Provide constant pressure for low-power transmitter arrays in valve chambers and metering stations along long-distance oil and gas pipelines.
  • Pharmaceutical engineering: Used for centralized power supply of automated instruments in sterile cleanrooms that strictly comply with process specifications.
  • Load Sharing: Automatic current balancing across multiple modules in redundant configurations extends overall equipment lifespan.
  • Hot-Swapping: Supports online, live replacement of faulty modules without interrupting instrument power supply to the fieldbus.
  • Fault Monitoring: Built-in alarm relays trigger instantly when output voltage drops below 24V or a short circuit occurs.
  • Physical Isolation: Independent electrical isolation between network segments prevents single-channel faults from propagating across different areas.
  • FF-831 Standard: Fully compliant with FF Foundation fieldbus specifications for power tuners and power supply characteristics.
  • Explosion-proof Certification: ATEX/IECEx certified, allowing installation in safe locations outside hazardous areas.
  • Classification Society Compliance: Meets the certification requirements of major classification societies, suitable for deployment on offshore platforms and ship control rooms.
  • RoHS/CE: Complies with EU environmental and electromagnetic compatibility directives, ensuring immunity to interference in harsh industrial environments.
Description
The Emerson 9191-FP 4-Segment Power Module is a reliable and high-performance power supply designed for fieldbus segments in industrial automation systems. Each module provides 28–32 V DC output with a design current of 0–250 mA per segment and current limiting above 320 mA. It supports four independent channels with galvanic isolation, integrated failure alarms, and passive inductors and terminators to ensure maximum system availability.

For redundancy, the modules can be configured in N+1 load-sharing arrangements, with up to three modules per 4-segment group to support higher currents (250–500 mA per segment). This flexible design allows for both immediate and future expansion of fieldbus segments while maintaining reliable operation and protection.
Alternative Names
9I9I-FP g1g1-FP 9191FP 9I9IFP 9197-BLK 9192-FP KJ1501X1-BC3 12P3935X032 VE5009 KJ2003X1-BB1 12P3439X012
Technical notes
Engineered for high-energy trunk systems, the Emerson 9191-FP power module provides a steady 28V DC output to support up to 4 independent Foundation Fieldbus segments.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What function does Emerson 9191-FP provide in segment-based power systems?
Emerson 9191-FP is a 4-Segment Power Module designed to distribute controlled DC power across four independent channels in industrial automation architectures.
How is current managed in Emerson 9191-FP per segment?
Emerson 9191-FP supports a design current from 0 to 250mA per segment, with a current limit greater than 320mA to protect downstream devices.
Can Emerson 9191-FP operate in high-temperature environments?
Emerson 9191-FP operates from –20°C to +60°C in optimum orientation and up to +50°C in non-optimum orientation, making it adaptable to different installation conditions.
Does Emerson 9191-FP support low-load or zero-load operation?
Emerson 9191-FP supports a minimum load of 0mA, allowing flexible configuration without mandatory load requirements on each segment.
What protection level does Emerson 9191-FP provide against environmental exposure?
Emerson 9191-FP offers IP20 protection according to BS EN 60529, with additional protection achievable through proper enclosure design.
Can Emerson 9191-FP handle humidity variations in industrial sites?
Emerson 9191-FP supports relative humidity levels below 95% non-condensing, ensuring reliable operation in standard industrial environments.

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