Description
Product Core Brief
- Model: SPBRC300 — ABB BRC300 Harmony Bridge Controller
- Brand: ABB
- Series: ABB Bailey / Harmony / Symphony Plus DCS controller family
- Core Function: High-capacity process controller and bridge controller that collects field I/O, executes control algorithms, and bridges I/O, network nodes, and higher-level systems.
- Product Type: DCS bridge controller / process controller module
- Key Specs: 32-bit processor | Harmony block/rack I/O support | S800 I/O compatibility | INFI 90 OPEN compatibility | Redundancy support
- Condition: New Original (New Surplus) / Factory Sealed — when available
Product Introduction
The ABB SPBRC300 is the product code associated with the ABB BRC300 Harmony Bridge Controller, a high-performance process controller used in ABB Bailey INFI 90 OPEN, Symphony, and Symphony Plus DCS environments. It interfaces with Harmony block I/O, Harmony rack I/O, and S800 I/O subsystems, executing continuous, sequential, batch, and advanced control strategies.
This controller matters for plants maintaining legacy DCS installations where OEM availability is limited. A verified SPBRC300 / BRC300 unit can support controller replacements, bay expansions, migration staging, and spare-part reserves without requiring an immediate full-system upgrade.
Key Technical Specifications
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- Part Designation: SPBRC300 / BRC300 Harmony Bridge Controller
- Product Type: DCS process controller / bridge controller module
- Platform Compatibility: ABB Bailey INFI 90 OPEN, Symphony, Symphony Plus, Harmony I/O, S800 I/O
- Processor: 32-bit industrial microprocessor; 160 MHz referenced in BRC300 documentation
- Memory: ROM, SDRAM, NVRAM, and Flash ROM as specified for BRC300 hardware
- Control Languages: Function codes, Ladder, Batch, C, Basic, and user-defined logic
- I/O Support: Harmony block I/O, Harmony rack I/O, S800 I/O
- Redundancy: Supported with matched redundant controller configuration
- Communication: Serial channels, station link, Hnet, and system network interfaces depending on configuration
- Mounting: MMU / rack-mounted controller module
- Replacement Type: Obsolete / surplus replacement component
- Packaging: ESD-protected, shock-aware industrial packing
- Traceability: Label, revision, and BRC300 marking verification required before installation
- Supply Status: New Original / New Surplus inventory, subject to availability
- Warranty: 12 months from shipment
- Lead Time: Dispatch depends on current surplus stock
- Note: Exact firmware, memory, and interface details depend on the specific hardware revision
Key Selling Points & Differentiators
- Direct association with the ABB BRC300 Harmony Bridge Controller.
- Supports legacy INFI 90 OPEN and Symphony Plus environments.
- Handles continuous, sequential, batch, and advanced control tasks.
- Compatible with Harmony and S800 I/O subsystems.
- Redundancy-ready for high-availability process applications.
- Factory-sealed surplus reduces handling risk compared with used pulls.
- Useful for DCS maintenance spares, controller replacements, and migration support.
- Not recommended for unrelated PLC, drive, or protection relay platforms.
Quality Transparency SOP
- Visual inspection: Check faceplate, latching screws, status window, labels, and BRC300 marking.
- Module verification: Confirm controller revision, firmware label, and hardware options.
- Connector verification: Confirm backplane contacts, serial/network ports, and mounting integrity.
- Compatibility check: Match host system, I/O subsystem, firmware level, and redundancy configuration.
- Documentation review: Confirm SPBRC300 / BRC300 part number, revision, lot/serial traceability, and packing condition.
Technical Risk Avoidance
- ❗ Confirm the exact host system before ordering. SPBRC300 is associated with the BRC300 Harmony Bridge Controller, not a feeder relay, safety relay, or drive controller.
- ❗ Verify firmware and hardware revision. Mismatched revisions may prevent integration with existing Symphony / INFI 90 OPEN stations.
- ❗ Check I/O subsystem compatibility. The controller must match the installed Harmony block/rack I/O or S800 I/O configuration.
- ❗ If redundancy is required, confirm that both controller slots, firmware, and configuration are matched.
- ❗ De-energize and follow proper lockout/tagout before removing or inserting controller modules.
- ❗ Do not force the module into the slot. Misalignment may indicate wrong slot, wrong revision, or damaged backplane contacts.
Buyer’s FAQ
- Is this a genuine ABB part?
It is supplied as an ABB SPBRC300 / BRC300 bridge controller module. Traceability should be confirmed through labeling and packaging before installation. - Is it new or refurbished?
Listed as New Original / New Surplus, factory sealed when available. It is not a repaired or refurbished controller. - What does SPBRC300 do?
It functions as a BRC300 Harmony Bridge Controller, collecting I/O data, executing control algorithms, and bridging field I/O with higher-level DCS systems. - Which systems does it fit?
It is associated with ABB Bailey INFI 90 OPEN, Symphony, Symphony Plus, Harmony I/O, and S800 I/O environments. - Can it run in redundant mode?
Yes, when configured with a matched redundant controller and compatible system firmware. - Is SPBRC300 the same as BRC300?
Yes. SPBRC300 is the product code linked to the ABB BRC300 Harmony Bridge Controller. - What warranty and lead time apply?
Standard 12-month warranty from shipment. Lead time depends on current surplus inventory and revision availability.






