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Product Overview: XO08R2
The XO08R2 is an 8-channel relay output extension module made for ABB’s Advant/AC31 (Procontic/Advant Controller) family of automation controllers. As a plug-in auxiliary module, XO08R2 supplies isolated relay outputs that interface directly with actuators, contactors and external devices, enabling the controller to switch field loads up to typical relay ratings. The module is widely stocked by distributors as replacement or spare hardware for legacy AC31 systems and other ABB modular controllers; its compact rail/panel form factor and well-defined electrical ratings make it an efficient choice when retrofitting or maintaining installed control panels. Because it is part of the Advant I/O ecosystem, the XO08R2 is designed for straightforward mechanical and electrical integration, and it supports the common system bus, terminal layouts and mounting conventions used across ABB’s discontinued AC31/Advant platforms.
Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | ABB |
| Product type | Relay Output Extension Module |
| Model / Part number | XO08R2 (1SBP260109R1001) |
| Number of outputs | 8 relay outputs (form A / NO / variant dependent) |
| Output contact rating | Typical: 2–5 A depending on voltage and variant; verify with datasheet or vendor listing. |
| Coil / control voltage | 12–24 V DC typical control logic (system-dependent) — confirm variant before installation |
| Isolation & protection | Galvanic isolation between logic and relay contacts; contact protection depends on application wiring. |
| Form factor / dimensions | Compact module — typical listed dimensions approx. 66 × 85 × 94 mm (vendor entries vary). |
| Weight | Approx. 0.2–0.8 kg (kit/packaging dependent — check product listing). |
| Ingress / environmental rating | IP20 for cabinet mounting; operating temp typically −20 °C to +70 °C (verify variant). |
| Compatibility / family | Advant Controller / AC31 / Procontic I/O family (plug-in extension modules). |
XO08R2
Related products
XO08R1 — earlier relay output variant in the same module family, similar mechanical fit but different contact ratings or coil voltages.
XO08Y1 — variant optimized for specific output types or wiring configurations within Advant I/O.
XO16N1 — 16-output digital module for applications that require denser output channels.
XI16E1 — 16-point input module often paired with XO output modules in the same racks.
XC08L1 — low-voltage input/logic module complementing the relay outputs for mixed I/O cabinets.
XK08F1 — I/O module with alternative terminal layout for brownfield replacements.
XTC08 — specialized timing/control module used in sequencing applications.
These related models share mechanical mounts, bus connection styles or firmware compatibility with the same Advant/AC31 installations; selection depends on channel count, isolation needs and contact ratings.
Main features and advantages
The XO08R2 is valued for its simplicity and reliability as a relay output extension: its eight isolated contacts enable the controller to drive solenoids, pilot contactors, lamp indicators and other discrete field devices without external interface relays. Each output channel provides the electrical separation needed to protect the controller electronics from inductive switching transients when appropriately suppressed. Because relay outputs tolerate higher surge currents and can switch AC loads directly, XO08R2 is a convenient, cost-effective option for many brownfield systems where modifying field wiring is impractical.
From an electrical viewpoint, the module’s contact ratings and galvanic isolation allow system designers to segregate circuits for safety and to meet control-cabinet wiring rules. The XO08R2 also supports common industrial use cases — motor starters, valve actuators, alarm signalling and interlock control — without introducing extra switching electronics. In facilities where electromagnetic noise or heavy inductive loads are present, the use of appropriate snubbers or surge suppressors with XO08R2 outputs preserves contact life and ensures predictable behavior under repetitive switching. Finally, vendor availability and the module’s established form factor make it a pragmatic choice when maintaining long-running installations that prioritize uptime and simple repair workflows.
XO08R2
Installation and maintenance: Pre-installation preparations: Before installing the XO08R2, verify the exact part number (1SBP260109R1001) and the control cabinet’s terminal base compatibility. Confirm the required contact rating and coil/control voltage for the target outputs, and inspect the controller backplane or bus connectors for corrosion, bent pins or debris. De-energize the control cabinet, lock out/tag out all sources, and discharge any stored energy on nearby circuits. Prepare wiring diagrams and label field wires so correct channel mapping is preserved when the module is inserted. Ensure the cabinet provides sufficient ventilation for the module’s ambient rating.
Maintenance suggestions: Periodically inspect the XO08R2 for secure terminal screws, signs of overheating at contact points and loosening from vibration. Check for contact wear by monitoring switching performance and inspect event logs on the master controller for repeated, unexplained operations that may point to contact fatigue. Where outputs drive inductive loads, verify suppression components and replace worn snubbers or RC networks as needed. Keep at least one known-good spare XO08R2 in storage (clean, dry, ESD-safe) to minimize downtime; because many suppliers offer refurbished units with test certificates, a validated refurbished spare is often a cost-effective choice. For firmware or system-level issues, consult the Advant/AC31 documentation and engage authorized service personnel for troubleshooting and field changes. 
Application fields
The XO08R2 is broadly applicable across industrial sectors where discrete control outputs are required from a central programmable controller. Typical deployments include manufacturing lines that require motor start/stop sequencing, packaging machines, building automation for HVAC or lighting control, and process-industry valve and actuator control. In utilities and infrastructure, the module is used for interlock signals, alarm relays and pump control where robust, easy-to-service outputs are preferred. Because of its mechanical compatibility with Advant/AC31 and similar platforms, the XO08R2 is especially common in brownfield retrofits where plant engineers want to preserve existing wiring harnesses and minimize cabinet rework.
In water/wastewater plants, the XO08R2 can switch solenoid valves and motor contactors that manage pumps and chemical dosing systems. In pulp & paper and material handling, its relay outputs control conveyor starters and safety interlocks. The module’s straightforward electrical characteristics also make it ideal for temporary installations or test benches where fast replacement and predictable contact behavior are essential. Overall, XO08R2 fills the role of a reliable, field-proven discrete output module suited to installations that emphasize maintainability, simple diagnostics and long service life.
Product guarantee
Our company provides a one-year quality warranty service for the product, covering hardware malfunctions not caused by human factors. During the warranty period, if the unit shows abnormal performance or functional failure, we will provide replacement services. For discontinued or legacy modules, we leverage our global supply channels and trusted refurbishment partners to source verified spares and service-exchange units rapidly to reduce equipment downtime. We will assist with part verification, configuration backup best practices and coordination with accredited repair centers so the replacement module can be returned to service promptly. Our procurement team can also advise on cross-reference options and fitment checks before a purchase to ensure correct compatibility.
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E-mail: sales@ygplc.com
