Use Scalable, Compact, and Intelligent DIN Rail DC Power Supplies for Industrial Power

Designers face significant challenges when selecting from a variety of industrial DC power supplies. Along with the need for reliability and the pressure to save space within increasingly crowded control panels, there is a growing demand for intelligent components that can self-monitor to enable predictive maintenance and minimize downtime. Flexibility is also key, as power demands can change dramatically across designs. The ability to adapt to regional power standards is a significant plus, making it easier to deploy globally while minimizing the bill of material (BOM).

Let’s look at how Schneider Electric helps you address these challenges with the Modicon family of power supplies. These scalable, switched-mode power supply (SMPS) solutions range in application from simple machine control to complex system installations featuring remote monitoring and battery backup capabilities.

A comprehensive DIN rail power platform

The Modicon family spans an impressive range, supporting output voltages from 5 to 48 volts DC (VDC) and power levels from 7 to 960 watts. This breadth enables engineers to standardize on a single platform across industrial, commercial, and residential automation applications, from basic conveying systems to sophisticated oil and gas installations.

The units are known for their compact, modular design, which is optimized for easy installation on DIN rails. Flexible AC input capabilities support global single- and multi-phase standards, while comprehensive certifications (including CE, UL, CSA, RCM, and KC) enable worldwide deployment without redesign.

The family comprises three distinct lines: Modular for compact and straightforward power delivery, Optimized for enhanced performance, and Universal for complex, power-hungry deployments.

Maximum space efficiency with Modular power supplies

The Modular ABLM line prioritizes compactness for applications such as sensors and basic control circuits, where cabinet space commands a premium. These units accept single-phase or phase-to-phase 100 to 240 volts AC (VAC) input, providing 5, 12, 24, or 48 VDC outputs starting in the sub-ampere (A) range. Each unit features a front-facing LED that indicates the presence of a DC output and a QR code for accessing the latest technical documentation.

The ABLM1A12010 (Figure 1) exemplifies the Modular line’s space-saving design. At just 18 millimeters (mm) wide, this unit delivers 12 VDC at 1 A while achieving 80% efficiency.

Figure 1: The compact ABLM1A12010 modular SMPS is a mere 18 mm wide and delivers 12 VDC at 1 A. (Image source: Schneider Electric)

Operating from -25 to 55°C without derating, the ABLM1A12010 is designed for challenging environments and features a mean time between failure (MTBF) of 3,000,000 hours at 25°C under full load.

Balance performance and size with Optimized power supplies

The Optimized ABLS line strikes a balance between performance and size, offering a step up in both power and features from the Modular line for more demanding industrial applications. It supports the same wide range of input and output voltages as the Modular series, but with an increased power capacity of 240 watts.

The ABLS1A48050 (Figure 2) demonstrates the Optimized line’s versatility. Measuring 60 mm wide, it provides 48 VDC at 5 A. Notably, this model accepts an input voltage of 140 to 375 VDC, in addition to the standard 100 to 240 VAC input, offering exceptional flexibility for diverse power architectures.

Figure 2: The ABLS1A48050 from the Optimized line delivers 45 VDC at 5 A and supports both AC and DC inputs. (Image source: Schneider Electric)

The ABLS1A48050 provides six output terminals for easy load distribution and parallel operation, eliminating the need for external terminal blocks when connecting multiple circuits. Like many products in the Modicon lineup, it features a conformal coating that protects against dust and chemical pollutants common in industrial environments.

Universal power platform

More than just power supplies, the Universal ABLU3 and ABL8RP lines are part of a complete platform that includes buffer modules, battery modules, and a wide range of other supporting functions. The power supplies accommodate expansive input ranges from 100 to 500 VAC, with models supporting both single-phase and three-phase systems. On the output side, they can deliver up to 960 watts.

Advanced monitoring capabilities distinguish the Universal series. Integrated diagnostic relay contacts enable remote monitoring, shutdown inputs provide external control capability, and dual-color LED indicators display both normal operation and fault conditions. These features are essential for critical systems in demanding industries, such as oil and gas, that require intelligent monitoring.

The ABLU3A48200 (Figure 3) showcases the Universal line’s capabilities. Designed for three-phase installations from 380 to 500 VAC, this unit delivers 960 watts (48 VDC at 20 A) with exceptional 95% efficiency.

Figure 3: The ABLU3A48200 Universal power supply is designed for three-phase installations from 380 to 500 VAC and delivers 960 watts. (Image source: Schneider Electric)

A power reserve feature enables 150% current delivery for short durations, accommodating motor starting and transient loads. Manual or automatic reset options for overload conditions, and remote on/off control via an external signal switch, provide operational flexibility.

Conclusion

The Schneider Electric Modicon family is a highly scalable solution for automation power needs. From ultra-compact Modular units to the high-power Universal platform, the family offers diverse options for a broad spectrum of applications. By standardizing on the Modicon platform, you can simplify inventory management while ensuring consistent performance across global installations.