Description

The ABB XC08L1 (1SBP260102R1001)​ is a high-performance, 24V DC power supply module. Engineered to deliver stable and reliable power, it is a critical building block for powering ABB’s compact programmable logic controllers (PLCs) and their associated I/O systems, ensuring consistent operation in demanding industrial settings.

Application Scenarios

In a compact automated packaging machine, a small but powerful PLC orchestrates the movement of conveyors, fillers, and sealers. A flicker in the control power can cause a misaligned seal, leading to product waste and line stoppage. The ABB XC08L1​ is deployed as the dedicated power source for the machine’s AC 31 controller. It takes the raw 120/230V AC line power and converts it into a clean, regulated 24V DC supply. This stable power feeds the PLC’s CPU, the local digital and analog I/O modules reading sensor inputs and driving actuators, and potentially a small HMI. Its robust design filters out electrical noise from nearby motors, ensuring the PLC’s logic executes flawlessly. This scenario highlights the XC08L1’s role as the dependable “heart” of a small but critical control system, solving the fundamental challenge of converting volatile mains power into the precise, clean power that modern electronics demand.

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Technical Principles and Innovative Values

The ABB XC08L1​ exemplifies the principle of delivering maximum reliability in a minimal footprint, a critical requirement for space-constrained control cabinets.

Innovation Point 1: Optimized Wide-Range Input with Active Inrush Current Limiting.​ The module accepts a universal AC input (100-240V) without manual switching, simplifying global deployment and inventory. Crucially, it incorporates active inrush current limiting. This technology prevents a high surge current at power-on, which can trip upstream circuit breakers and stress internal components, thereby significantly enhancing the longevity of both the XC08L1​ itself and any connected devices.

Innovation Point 2: High-Efficiency, Fanless Thermal Design.​ By utilizing advanced switching components and topology, the XC08L1​ achieves high electrical efficiency, minimizing wasted energy that converts to heat. This allows it to operate reliably at its rated load using only passive cooling (natural convection). The elimination of a fan removes a common point of mechanical failure, ensures completely silent operation, and prevents dust accumulation from forced airflow, making it ideal for environments like food packaging or clean rooms.

Innovation Point 3: Robust Filtering and Stable Output Under Dynamic Load.​ Industrial control loads are dynamic; a PLC driving a solenoid bank can cause sudden current spikes. The XC08L1​ incorporates multi-stage EMI filtering to reject both incoming line noise and prevent its own switching noise from contaminating the mains. Furthermore, its fast transient response and tight voltage regulation ensure the output remains stable even during rapid load changes, preventing brownout resets in the sensitive microcontroller of the connected PLC.

Application Cases and Industry Value

Case Study: Reliable Power for a Distributed Skid-Mounted Control System

A system integrator was building skid-mounted chemical dosing units for water treatment plants. Each skid had a small ABB AC 31 controller managing pumps and valves. The initial design used a generic, low-cost power supply. During factory acceptance testing, several units experienced random PLC resets when all solenoids activated simultaneously, causing test failures and project delays.

Solution & Outcome:​ The integrator standardized on the ABB XC08L1​ as the dedicated power supply for every control panel on the skids. Its robust output could handle the simultaneous inrush of all solenoid valves without drooping. The superior noise immunity also eliminated interference from the variable frequency drives on the pump motors. After retrofitting all 20 skids with the XC08L1. every unit passed testing flawlessly. The project manager noted: “Switching to the purpose-built XC08L1​ was a turning point. It was the difference between unreliable prototypes and a robust, shippable product. It solved our noise and load issues completely.”

Related Product Combination Solutions

The ABB XC08L1​ is the ideal power source for a compact, yet powerful, control system architecture.

ABB AC 31 / AC 41 Micro and Nano PLCs:​ The primary load. The XC08L1​ provides the clean 24V DC power required for the CPU’s operation.

ABB XC Series I/O Modules (e.g., XC200 DI/DO/AI/AO):​ These compact I/O modules, which connect directly to the AC 31 controller, are powered directly from the system’s 24V DC bus supplied by the XC08L1.

DIN-Rail Circuit Breakers (e.g., ABB S200 series):​ A miniature circuit breaker should be installed upstream of the XC08L1​ to provide overcurrent protection for the AC input wiring.

DIN-Rail Terminal Blocks:​ Used for the neat and safe distribution of the 24V DC output from the XC08L1​ to the PLC, I/O modules, and sensors.

Small HMI or Touch Panel:​ A compact operator interface can be powered from the same XC08L1​ supply, creating a fully integrated control and visualization station.

24V DC Sensors and Actuators:​ While high-power actuators may need separate supplies, many low-current sensors and devices can be powered from the XC08L1. simplifying panel design.

Installation, Maintenance, and Full-Cycle Support

Installation of the ABB XC08L1​ is designed for efficiency. It snaps directly onto a standard 35mm DIN rail within the control panel. The AC line (L, N, PE) connections are made to its clearly marked input terminals, and the 24V DC output (+V, 0V) is wired to a distribution point or directly to the PLC system. Critical steps include ensuring correct wire gauge, proper grounding, and the installation of an appropriately rated fuse or circuit breaker on the AC input line. Its compact, self-contained design makes it a true “fit-and-forget” component.

Routine maintenance is minimal due to its solid-state, fanless construction. The primary task is a periodic visual inspection to ensure the unit is free from excessive dust and that all connections remain tight. The module typically features a single green LED indicator; a lit LED confirms normal operation, while an unlit or flashing LED indicates a fault (e.g., no input power or overload). Should a fault occur, troubleshooting is straightforward—check input voltage, output for short circuits, and ensure the load does not exceed the rated current. Replacement is a simple matter of disconnecting power, removing wiring, unclipping the old unit, and installing a new one. We provide full lifecycle support, from assisting with power sizing for your application to supplying genuine ABB replacement modules, ensuring your compact control systems have a reliable power foundation.