Reliance Electric SA3000DC070 AutoMax SA3000 AC/DC Power Module
June 08, 2026

Reliance Electric SA3000DC070 AutoMax SA3000 AC/DC Power Module

The SA3000DC070 (also known as part number 897.13.50A) is a high‑performance, three‑phase AC‑to‑DC power conversion module manufactured by Reliance Electric (now part of ABB/Baldor). It belongs to the AutoMax SA3000 Distributed Power System (DPS) family, designed to supply regulated DC power to multi‑axis industrial drive systems. As a non‑regenerative rectifier unit, it converts incoming AC voltage into a stable DC bus voltage for inverters, servo drives, and other DC‑powered components within the AutoMax platform. The module is engineered for heavy‑duty industrial environments, offering robust construction, comprehensive protection, and seamless integration with Reliance’s AutoMax PMI (Process Module Interface) racks and control systems.

Description

Reliance Electric SA3000DC070 AutoMax SA3000 AC/DC Power Module

Overview

The SA3000DC070 (also known as part number 897.13.50A) is a high‑performance, three‑phase AC‑to‑DC power conversion module manufactured by Reliance Electric (now part of ABB/Baldor). It belongs to the AutoMax SA3000 Distributed Power System (DPS) family, designed to supply regulated DC power to multi‑axis industrial drive systems. As a non‑regenerative rectifier unit, it converts incoming AC voltage into a stable DC bus voltage for inverters, servo drives, and other DC‑powered components within the AutoMax platform. The module is engineered for heavy‑duty industrial environments, offering robust construction, comprehensive protection, and seamless integration with Reliance’s AutoMax PMI (Process Module Interface) racks and control systems.

Key Features

  1. High‑Power AC‑to‑DC Conversion: Accepts three‑phase 460 VAC input and delivers a regulated 621 VDC output, suitable for high‑power drive applications.

  2. Heavy‑Duty Industrial Design: Built with a rugged metal enclosure, vibration‑resistant components, and optimized thermal management to ensure reliable operation in harsh conditions.

  3. Forced‑Air Cooling: Equipped with an integrated cooling fan to maintain optimal operating temperatures during continuous high‑current operation.

  4. Comprehensive Protection: Incorporates overvoltage, undervoltage, overcurrent, short‑circuit, and overtemperature protection to safeguard the module and connected loads.

  5. Diagnostic LED Indicators: Front‑panel LEDs display power status, run mode, and fault conditions for quick on‑site troubleshooting and maintenance.

  6. Seamless System Integration: Fully compatible with Reliance AutoMax PMI racks, processors, I/O modules, and servo drives, enabling easy integration into new or existing industrial automation systems.

  7. Distributed Power Architecture: Designed for use in AutoMax DPS, supporting multi‑axis coordination and centralized power distribution across large‑scale industrial processes.

Technical Specifications

  • Manufacturer: Reliance Electric (ABB/Baldor)

  • Model: SA3000DC070

  • Alternate Part Number: 897.13.50A

  • Type: Three‑phase non‑regenerative AC‑to‑DC rectifier module

  • Input Voltage: 460 VAC ±10%, three‑phase, 50/60 Hz

  • Input Current: 70 A continuous

  • Output Voltage: 621 VDC regulated

  • Output Current: 87 A continuous

  • Power Rating: Approximately 54 kW

  • Cooling Method: Forced‑air cooling (integrated fan)

  • Operating Temperature: 0°C to +45°C (+32°F to +113°F)

  • Storage Temperature: -20°C to +60°C (-4°F to +140°F)

  • Humidity: 5%–95% non‑condensing

  • Enclosure Rating: IP20 (suitable for cabinet mounting)

  • Dimensions (Approx.): 330 mm × 230 mm × 890 mm (13 in × 9 in × 35 in)

  • Weight (Approx.): 22.7 kg (50 lbs)

  • Mounting: 4‑slot PMI rack‑mountable

Applications

The SA3000DC070 is designed for heavy‑duty industrial applications requiring high‑power DC bus supply and precise multi‑axis control:
  • Metal Processing: Rolling mills, extrusion lines, and wire drawing machines requiring constant DC bus voltage for drive coordination.

  • Paper & Pulp: Winders, calenders, and reel drives in paper manufacturing, where stable DC power ensures precise speed and tension control.

  • Material Handling: Cranes, hoists, and conveyors with high‑torque, frequent‑cycle operation.

  • Mining: Crushers, conveyors, and processing equipment in harsh mining environments.

  • Legacy System Upgrades: Direct replacement for older SA3000DC series modules in existing AutoMax DPS installations, minimizing downtime and integration costs.

Compatibility & Availability

  • Compatible Systems: Reliance AutoMax PMI processors, DCS 5000 I/O systems, and SA3000 series inverters/servo drives.

  • Status: Original production is discontinued; units are available as refurbished, surplus, or used from industrial automation suppliers.

  • Refurbished Units: Fully disassembled, inspected, component‑tested, calibrated, and load‑tested to meet original factory specifications, typically with a 1‑year warranty.

Advantages

  • High Efficiency: Converts AC to DC with minimal power loss, reducing operational costs and heat generation.

  • Reliable Performance: Rugged design and comprehensive protection ensure stable operation in demanding industrial environments.

  • Easy Maintenance: Diagnostic LEDs and modular construction enable quick fault detection and component replacement.

  • Cost‑Effective Legacy Support: Refurbished SA3000DC070 units provide a reliable, budget‑friendly solution for maintaining aging AutoMax systems.


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