ETEL EA‑S0M‑300‑40/80A‑0090‑00 AccurET Modular Power Supply
The ETEL EA‑S0M‑300‑40/80A‑0090‑00 is a modular power supply unit within the AccurET series, engineered to provide a regulated 300 VDC bus for up to multiple servo drives. It accepts a three‑phase 400–480 VAC input and delivers 40 A continuous and 80 A peak current. This unit is designed for high‑power multi‑axis systems requiring a robust and stable power source.
Key features include active power factor correction, regenerative braking with an internal resistor, and comprehensive protection. The module also provides an auxiliary 24 VDC output for control circuits, simplifying system wiring.
Key Features
Main output: 300 VDC, 40 A continuous, 80 A peak
Auxiliary output: 24 VDC, 5 A
Input: 400–480 VAC, three‑phase, 50/60 Hz
Active PFC (power factor > 0.95)
Regenerative braking with integrated resistor
Active inrush current limiting
Diagnostic LEDs and fault relay
Technical Specifications
Input: 400–480 VAC ±10%, 50/60 Hz; main output: 300 VDC ±1%, 12 kW continuous; aux output: 24 VDC ±5%, 120 W; efficiency: > 94%; protection: overcurrent, overvoltage, undervoltage, overtemperature, short‑circuit; operating temperature: 0°C to +45°C; dimensions: 300 x 220 x 120 mm.
Applications
Used as central power for AccurET drives in large CNC machines, robotic systems, and automated production lines.
Installation and Wiring
Mount in a cabinet. Connect AC input, DC main output to drive bus, and 24 V output to controls. Ensure proper grounding and cable sizing. Pre‑charge circuit included.
Reliability and Maintenance
Industrial‑grade design with thermal monitoring. Periodic cleaning of fans and filters is recommended.
Why Choose the EA‑S0M‑300?
This power supply combines high power with auxiliary output, reducing system cost and complexity while ensuring reliable operation.
In summary, the ETEL EA‑S0M‑300‑40/80A provides a complete power solution for demanding motion control systems.




