ABB XO08R2 1SBP260109R1001 Extension Module for Relay Outputs

Description

Product Model: XO08R2
Ordering / Part Number: 1SBP260109R1001
Product Brand: ABB
Product Features:

• Relay output extension module offering up to 8 relay outputs.
• Each relay rated for both AC and DC loads (commonly 2 A at 250 V) in automation systems.
• Compact design suited for DIN-rail or rack mounting in ABB control systems.
• Acts as an output expansion for ABB PLC / DCS / Advant / Procontic systems (relay interface).
• Standard 12-month warranty when sourced via authorized or reputable distributors.

Applications & Industry Context

In industrial control systems, PLCs or DCS often need to switch loads — such as solenoids, valves, alarms, indicators or motor starters — that require isolated relay outputs. The ABB XO08R2 (1SBP260109R1001) is tailored for exactly this need: an 8-relay output extension module designed to expand the switching capability of control systems in process plants, power utilities, petrochemical facilities, water/wastewater installations, and factory automation lines.

When the built-in outputs of a controller (PLC, DCS rack) are insufficient, or when those outputs are transistor/SSR types but you need mechanical contacts (for safety, isolation, or legacy loads), a relay expansion module is essential. The XO08R2 is widely adopted in ABB’s “Advant / Procontic / Procontic CS31 / OCS / control rack” architectures to fill that gap.

In field scenarios:

• Suppose a process skid requires driving 8 solenoid valves or control relays, but your PLC only offers 4 outputs. A module like XO08R2 can be slotted into the existing rack to give you those extra outputs.
• In hazardous-area control racks, adding modular relay outputs helps isolate field circuits from logic circuits.
• During system expansions or upgrades, using a standard ABB relay module is safer and more maintainable than wiring ad hoc external relays.

Because ABB control racks and modules often use standardized backplanes and module form factors, XO08R2 fits neatly into the ecosystem—minimizing wiring changes and preserving system integrity.

Product Role & System Fit

The XO08R2 (1SBP260109R1001) is a relay output extension module. It doesn’t control logic itself but provides electromechanical outputs (relays) under command from a controller or module bus. It is typically slotted into a backplane or module cage alongside I/O, power, and communication modules.

In a typical control architecture:

1. The controller’s logic issues a digital command (ON/OFF).
2. That command is passed via the module bus / rack backplane to the XO08R2 module.
3. The XO08R2 energizes the appropriate relay coil, switching the contact side to drive the load (AC or DC).
4. Load voltages and currents are isolated from the logic side, protecting the control system from high load disturbances.

Given its eight-channel relay capacity, the module is well suited to moderate expansion tasks without overly increasing rack footprint. It often acts as a reliable intermediate interface between the control logic world and the “real world” devices that need switched power.

Because it’s passive logic plus relay coils, XO08R2 is generally more robust and easier to maintain than solid-state drive modules for certain load types (especially inductive loads requiring mechanical isolation).

Technical Features & Benefits

Here are key features of the XO08R2 module and their practical benefits:

8 Relay Outputs
The module offers eight independent relay outputs.

Versatile Output Ratings
Each relay is typically rated for up to 2 A at 250 V (AC/DC) — enabling it to switch moderate loads like solenoids, indicators, or small actuators.

Compact, Rack-Friendly Design
The module is built for modular racks and backplanes, allowing plugin replacement and minimal wiring disruption.

Integration with ABB Ecosystem
It is commonly used with ABB Advant Controller 31, OCS, Procontic CS31 systems.

Reliability & Industrial Grade
The module is described as “high performance, reliable and stable industrial automation control equipment.”  Its relays provide galvanic isolation between control logic and load circuits, offering protection against interference.

Discontinued / Legacy
Some sources list it as discontinued.  However, many refurbished or NOS (new old stock) units remain available in aftermarket channels.

Warranty & Support Availability
Suppliers offer 12-month warranty for new or refurbished units

In field practice, when control outputs fail or loads behave erratically, often the suspected culprits are the output modules—not the controller. Swapping in a known-good XO08R2 module can quickly restore command-to-load continuity.

Technical Specifications Table

Related Models

If you are working with ABB systems, these are related modules to keep in mind:

• XO08R2-A4.0 (1SBP260109R1001 variant) — variant with form factor or feature differences.
• Other relay output expansion modules in the XO series
• Solid-state output / transistor output modules (for faster switching or long life)
• Other ABB output modules (16-channel, higher current, etc.)

When ordering spares, make sure the part number matches 1SBP260109R1001, and check any variant suffixes (A4.0, etc.).

Installation & Maintenance Insights

From hands-on industrial automation work, here are practical tips for XO08R2:

• Power down before swapping: Always isolate rack power before removing or inserting the module to avoid relay contact arcing or backplane damage.
• Check wiring polarity and load ratings: Ensure your load circuits do not exceed 2 A per relay, and that switching voltage is within spec.
• Use appropriate suppression / snubbers: Inductive loads (like solenoids) may generate spikes when deactivated; protective snubbers or RC networks help prolong contact life.
• Verify addressing / configuration: Ensure the module’s address or slot mapping in the controller’s configuration matches the physical module location.
• Spare module practice: Maintain at least one spare XO08R2 (or same part number) in your spares store; swapping modules is a fast first-fault remedy.
• Inspect relay contacts over time: During preventive maintenance, check for contact pitting, discoloration, oxidation—especially in high-duty applications.
• Thermal management: Ensure adequate ventilation in the rack, as relay coils generate heat.
• Monitor load behavior: If loads draw higher current intermittently, logs may show module overheating or contact bounce—upgrade the module or reduce load accordingly.

Using these habits, XO08R2 modules can serve reliably for many years in industrial systems.