Siemens A5E42740268 Robicon Inverter Power Supply Unit

Product Overview

The Siemens A5E42740268 serves as a critical power conversion component within the Robicon inverter and drive family. This advanced Inverter Power Supply Unit (PSU) facilitates high-efficiency energy transformation for demanding industrial automation environments. By converting standard 3-phase AC input into a stable DC bus voltage, the unit provides the necessary power backbone for precision motor control and drive operations. Its compact form factor and German engineering make it a preferred choice for space-constrained control cabinets requiring maximum reliability.

Core Functional Capabilities

• Manages High-Efficiency Power Conversion: The unit transforms 3-phase 380–480V AC input into a regulated 510–720V DC output. Achieving over 96% efficiency at full load, it minimizes heat dissipation and reduces overall energy costs for the facility.
• Optimizes Power Quality: The Active Front End (AFE) version maintains a power factor greater than 0.98. This capability prevents harmonic distortion and ensures the system draws clean energy from the local grid, protecting sensitive downstream electronics.
• Sustains Precise Voltage Regulation: The PSU maintains consistent DC output despite fluctuations in the input frequency (47–63Hz) or voltage (±10%). This stability prevents drive trips and ensures continuous operation of critical manufacturing lines.
• Supports Compact System Design: Weighing only 0.38kg with a slim 3cm profile, the unit allows for dense hardware stacking. Engineers can integrate this power supply into tight industrial drive assemblies without compromising cooling airflow.
• Integrates with Automated Monitoring: The unit features intelligent protection circuits that monitor for overvoltage and thermal anomalies. It communicates status data to the central PLC system, allowing for predictive maintenance and rapid fault diagnosis.

Technical Specifications

• Brand: Siemens / Robicon
• Model Number: A5E42740268
• Module Type: Inverter Power Supply Unit
• Input Voltage: 3-Phase 380V–480V AC (±10%)
• Output Voltage: 510V–720V DC
• Efficiency: >96% at full load
• Power Factor: >0.98 (AFE Version)
• Frequency Range: 47–63Hz
• Net Weight: 0.38 kg
• Dimensions: 12.2 cm x 10.7 cm x 3.0 cm

Industrial Implementation

Automation specialists install the Siemens A5E42740268 in Robicon drive systems used for large-scale pumps, fans, and compressors. It excels in industries such as water treatment, oil and gas, and heavy manufacturing, where power consistency is vital for process safety. Because the unit facilitates seamless integration with Siemens’ broader automation portfolio, it serves as a reliable replacement part for system upgrades or a core component in new high-performance drive installations. Its rugged design ensures it withstands the electrical noise and thermal stress typical of continuous industrial processing.