Description
Product Core Brief
- Model: SR511 — Redundant 5V Regulator
- Brand: ABB
- Series: ABB Advant OCS / Advant Controller power and regulator family
- Core Function: Redundant 5V DC regulator module that provides stable internal bus power for Advant OCS controller racks and associated I/O subsystems.
- Product Type: Redundant 5V regulator / rack power module
- Key Specs: DC input 18–30 V | DC output 5 V, up to 35 A | Redundant regulator operation | Advant OCS rack mounting | Alternate ordering code 3BSE000863R1
- Condition: New Original (New Surplus) / Factory Sealed — when available
Product Introduction
The ABB SR511, order number 3BSE000863R0001, is a redundant 5V regulator module used in ABB Advant OCS environments. It converts an external DC supply into a regulated 5V output for internal rack bus power, helping maintain stable operation of controllers, communication modules, and I/O subsystems. The module is rated for approximately 18–30 VDC input and up to 35 A at 5 VDC output, with a maximum power rating around 310 W.
Because SR511 belongs to a legacy Advant OCS platform, verified surplus units are typically used for maintenance spares, rack replacements, and legacy system support where the original power architecture must be preserved.
Key Technical Specifications
- Part Designation: SR511 Redundant 5V Regulator
- Order Number: 3BSE000863R0001
- Alternate Order Number: 3BSE000863R1
- Product Type: Redundant 5V regulator module
- Platform Compatibility: ABB Advant OCS / Advant Controller racks
- Input Voltage: 18–30 VDC
- Output Voltage: 5 VDC
- Output Current: Up to 35 A
- Power Rating: Approximately 310 W maximum
- Redundancy: Redundant 5V regulator operation
- Mounting: Rack-mounted regulator module for Advant OCS
- Replacement Type: Obsolete / surplus replacement component
- Packaging: ESD-protected, shock-aware industrial packing
- Traceability: Label, revision, and SR511 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 revision, firmware, and mechanical details depend on the specific hardware batch
Key Selling Points & Differentiators
- OEM-identifiable ABB redundant 5V regulator for Advant OCS racks.
- Supports stable internal bus power for legacy controller and I/O subsystems.
- Redundant regulator design helps improve rack power availability.
- Suitable for maintenance spares, legacy system support, and like-for-like replacement.
- Factory-sealed surplus reduces handling risk compared with used pulls.
- Not a general-purpose power supply, PLC CPU, or field I/O module.
Quality Transparency SOP
- Visual inspection: Check faceplate, latching hardware, power terminals, labels, and SR511 marking.
- Order number verification: Confirm 3BSE000863R0001 / 3BSE000863R1 against the original module.
- Terminal verification: Confirm DC input/output terminals and rack connector integrity.
- Compatibility check: Match the host Advant OCS rack, power architecture, and redundancy configuration.
- Documentation review: Confirm part number, revision, lot/serial traceability, and packing condition.
Technical Risk Avoidance
- ❗ Confirm the exact module type before ordering. SR511 is a redundant 5V regulator, not a PLC CPU, communication module, or field I/O card.
- ❗ Verify the order number. SR511 may appear as 3BSE000863R0001 or 3BSE000863R1; both refer to the same SR511 regulator family.
- ❗ Check input voltage. The module typically accepts 18–30 VDC; incorrect supply voltage can damage the regulator or downstream rack modules.
- ❗ Confirm redundancy configuration. If the rack uses redundant regulators, both units and their settings should be verified.
- ❗ De-energize and follow proper lockout/tagout before removing or inserting regulator modules.
- ❗ After replacement, verify 5V bus voltage, load distribution, alarms, and rack status indicators.
Buyer’s FAQ
- Is this a genuine ABB part?
It is supplied as an ABB SR511 redundant 5V regulator. 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 regulator. - What does SR511 do?
It provides redundant 5V DC regulation for ABB Advant OCS racks, converting 18–30 VDC input into a stable 5V output for internal system power. - Which systems does it fit?
It is associated with ABB Advant OCS / Advant Controller environments. - Is 3BSE000863R0001 the same as 3BSE000863R1?
Yes. Both order numbers are associated with the ABB SR511 redundant 5V regulator. - What warranty and lead time apply?
Standard 12-month warranty from shipment. Lead time depends on current surplus inventory and revision availability.




