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FBM241C

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Foxboro FBM241C is the redundant FBM241c variant with eight 15-60 VDC contact inputs and eight externally powered discrete outputs.
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Technical specifications for FBM241C

  • Manufacturer:
    Invensys
  • Part Number:
    FBM241C
  • Product Family:
    Foxboro
  • Product Type:
    Redundant Contact Input/Discrete Output Module
  • Stock:
    1
  • Input/output channels:
    8 inputs and 8 outputs
  • Filter/debounce:
    No filtering, 4, 8, 16 or 32 ms
  • Isolation test:
    600 VAC for one minute
  • Contact input range:
    15 to 60 VDC; protected or unprotected TA options
  • External-source DC output:
    15 to 60 VDC, 2.0 A maximum, 0.1 mA off-state leakage
  • Relay output option:
    240 VAC at 5 A, depending on TA
  • Power consumption:
    5 W maximum for a single module
  • Heat dissipation:
    6 W maximum for a single module
  • Module Fieldbus:
    Redundant 2 Mbps
  • Input power:
    24 VDC +5%, -10%
  • Operating temperature:
    -20 to +70°C
  • Storage temperature:
    -40 to +70°C
  • Relative humidity:
    5 to 95%, noncondensing
  • Contamination class:
    ISA-S71.04 Class G3
  • Dimensions:
    10.2 × 4.5 × 10.4 cm
  • Weight:
    0.284 kg
  • Tariff Code:
    8538900000
  • 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 Variant Identity Signal Design Redundancy Application
  • Use FBM241C only for the documented FBM241c channel function
  • Confirm the electronic-module order number, termination hardware and cable before replacement
  • Preserve field wiring, channel configuration, diagnostics and redundancy state before removal

FBM241C is a Foxboro redundant contact input/discrete output module designed for Foxboro DCS 200 Series field I/O.

Foxboro FBM241C is the redundant FBM241c variant with eight 15-60 VDC contact inputs and eight externally powered discrete outputs. The official PSS styles this function as FBM241c; RH914WM is the current exact electronic-module part number and RH927BM is the separate redundant adapter.

Before installation or replacement, verify the complete nameplate, companion hardware, termination assembly, cable, signal limits, field wiring, saved configuration and supported system environment.

Availability, condition, price, and shipping time for FBM241C are confirmed during quotation.

Foxboro FBM241C Redundant Contact Input/Discrete Output Module Manuals, Datasheets, Links

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.

  • Match the complete FBM241C suffix to the official FBM241c function
  • Use RH914WM as the current electronic-module order number
  • Keep the RH927BM adapter and TA identities separate from the module
  • Use the protected or unprotected contact-input TA required by the project
  • Keep direct DC outputs within 15-60 VDC and 2 A
  • Use the documented relay TA when 240 VAC output service is required
  • Install the pair in documented adjacent odd/even baseplate positions
  • Restore input filtering, output safe states and field-power configuration
  • Prove partner transfer while monitoring all used input and output states
  • Redundant 15-60 VDC contact-status acquisition
  • Externally powered DC solenoid and relay output control
  • 240 VAC relay-output service with the documented termination assembly
Description
FBM241C is a Foxboro redundant contact input/discrete output module for the Foxboro DCS 200 Series I/O platform.

Foxboro FBM241C is the redundant FBM241c variant with eight 15-60 VDC contact inputs and eight externally powered discrete outputs. Its documented channel architecture and electrical limits define the supported field interface.

Before installation or replacement, confirm the complete FBM241C identity, module part number, compatible termination hardware, cable, field power, wiring, saved configuration and control-system requirements.
Alternative Names
FBM241C FBM 241C Foxboro FBM241C Foxboro Evo FBM241C Invensys Foxboro FBM241C I/A Series FBM241C FBM241c FBM241C RH914WM FBM241c RH914WM
Technical notes
FBM241C/RH914WM is the FBM241c redundant 8-input/8-output variant. Do not copy signal limits from another FBM241 suffix; verify the exact TA and field-power method.
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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.
How can a customer confirm that FBM241C is the correct FBM241 suffix for an existing panel?
Check the FBM241C and RH914WM nameplate, installed termination assembly, contact-input supply, externally powered output wiring, load interface and project drawings. Do not identify the suffix from the enclosure alone.
Can protected and unprotected input termination assemblies be exchanged on FBM241C?
Not without engineering review. Confirm the required field protection, terminal allocation, common wiring, field-power source, cable and database configuration before changing the termination path.
Why do FBM241C contact inputs chatter or change state intermittently?
Check contact bounce, wetting voltage, loose terminals, shared commons, grounding, induced noise, the protected input path, and whether the configured filter matches the field device response.
Why does an FBM241C output remain off even when the DCS command is ON?
The output depends on the external field source. Check that supply, polarity, common return, protection devices, wiring continuity, load condition, termination path, interlocks and channel diagnostics.
Can an FBM241C relay-output termination replace a direct DC-output termination without other changes?
No. The switching interface, field wiring, load protection, suppression, safe-state behavior and control documentation must be reviewed and recommissioned for the selected termination assembly.
Why do FBM241C field fuses or protection devices trip repeatedly?
Inspect for a shorted load, excessive inrush, incorrect suppression, wiring-to-ground faults, reversed polarity, an unsuitable field source or a termination assembly that does not match the application.
What commissioning test confirms that FBM241C wiring and redundant operation are healthy?
Operate each contact input from the field side, command every used output into its real or controlled load, verify protection and safe-state behavior, then prove partner transfer, alarms and diagnostic recovery.

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