ETEL EA‑SOM‑300‑40/80A‑0090‑00 AccurET Modular Power Supply

The ETEL EA‑SOM‑300‑40/80A‑0090‑00 is a versatile modular power supply unit from the AccurET series, designed to provide both a main 300 VDC bus for servo drives and an auxiliary 24 VDC output for control circuits. This unit accepts a three‑phase AC input and delivers a continuous current of 40 A (peak 80 A) on the main DC bus, as well as a regulated 24 VDC at up to 5 A for logic power.

This integrated design simplifies system wiring and reduces panel space by eliminating separate power supplies. The unit includes active PFC, regenerative braking, and comprehensive protection features, ensuring reliable operation in industrial environments.

Key Features

• Main output: 300 VDC, 40 A continuous, 80 A peak

• Auxiliary output: 24 VDC, 5 A, isolated

• Input: 400–480 VAC, three‑phase, 50/60 Hz

• Active power factor correction (>0.95)

• Regenerative braking with internal 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; auxiliary 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 a central power source for AccurET drives in industrial automation, robotics, and machine tools. The auxiliary output powers PLCs, sensors, and controllers.

Installation and Wiring

Mount the module in a cabinet. Connect the AC input, the DC main output to the drive bus, and the 24 V output to control circuits. Ensure proper grounding and use recommended cable sizes. The unit includes a pre‑charge circuit for safe startup.

Reliability and Maintenance

Designed for continuous operation with high‑grade capacitors and thermal management. Periodic inspection of cooling fans and cleaning of ventilation slots is recommended.

Why Choose the EA‑SOM‑300?

This power supply combines main and auxiliary power in one module, saving space and cost while delivering reliable power to servo and control systems. ETEL's quality ensures durability.

In summary, the ETEL EA‑SOM‑300‑40/80A provides a complete power solution for motion control systems, enhancing efficiency and simplify wiring.