UL-740A-R2A-B024-021_ABB_PRODUCT_吉林易择科技技术发展有限公司

Technical Specifications Parameter Specification Product Code UL-740A-R2A-B024-021 Product Family ABB Symphony / IndustrialIT 800xA / S800 I/O System Module Type Redundant Power Supply Unit Input Voltage 100-240V AC, 50/60 Hz (Universal Input) Output Voltage 24V DC (regulated, for field instruments and I/O modules) Output Current 10A (per module, total 20A in redundant configuration) Redundancy N+1 Redundant Configuration supported (hot-swappable) Efficiency >85% (typical) Protection Overload, Short-circuit, Overvoltage protection Isolation 1500V AC input-to-output isolation Cooling Convection cooling (fanless) Operating Temperature 0°C to +60°C (32°F to 140°F) Relative Humidity 5% to 95% non-condensing MTBF >200,000 hours (calculated per MIL-HDBK-217F) Standards UL 508, CSA C22.2 No. 14, IEC 61131-2, CE, RoHS

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DESCRIBE

The ABB UL-740A-R2A-B024-021 is a dedicated redundant power supply module designed for the ABB Symphony Harmony/Melody and S800 I/O distributed control systems (DCS). This unit provides reliable, redundant DC power to critical control system components, ensuring continuous operation and high availability in industrial automation environments such as power plants, oil refineries, and chemical processing facilities.

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