Reliance Electric SA3000DC140 AutoMax SA3000 DC‑AC Inverter Power Module

Overview

Key Features

1. High‑Power DC‑AC Conversion: Converts 621 VDC input into regulated 460 VAC three‑phase output, delivering up to 140 A continuous AC current for large motors and drives.

2. Heavy‑Duty Industrial Construction: Built with a robust metal enclosure, vibration‑resistant components, and optimized airflow to withstand extreme temperatures, dust, and vibration in industrial settings.

3. Forced‑Air Cooling System: Equipped with dual integrated cooling fans to maintain safe operating temperatures during full‑load, continuous‑duty operation.

4. Comprehensive Electrical Protection: Incorporates overvoltage, undervoltage, overcurrent, short‑circuit, overtemperature, and ground‑fault protection to safeguard the module, connected motors, and downstream equipment.

5. Diagnostic LED Status Indicators: Front‑panel LEDs display DC bus status, AC output run mode, and fault codes for rapid on‑site troubleshooting and preventive maintenance.

6. Seamless System Integration: Fully compatible with Reliance AutoMax PMI (Process Module Interface) racks, processors, I/O modules, and SA3000 series rectifiers, enabling easy integration into new or existing multi‑axis control systems.

7. High Short‑Circuit Withstand Rating: Symmetrical RMS short‑circuit rating of 10 kA, ensuring safety and durability during electrical fault conditions.

Technical Specifications

• Manufacturer: Reliance Electric (ABB/Baldor)

• Model: SA3000DC140

• Alternate Part Number: 897.16.50B

• Type: Three‑phase DC‑to‑AC inverter module

• Input Voltage: 621 VDC (regulated DC bus)

• Input Current: 174 A continuous

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

• Output Current: 140 A continuous

• Power Rating: Approximately 93 kW

• Cooling Method: Forced‑air cooling (dual integrated fans)

• 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)

• Approximate Dimensions: 813 mm × 610 mm × 381 mm (32 in × 24 in × 15 in)

• Approximate Weight: 61.2 kg (135 lbs)

• Mounting: 4‑slot PMI rack‑mountable

• Short‑Circuit Rating: 10 kA symmetrical RMS.

Applications

• Metal Processing: Rolling mills, steel extrusion lines, and wire drawing machines requiring high‑torque, variable‑speed motor control.

• Paper & Pulp Manufacturing: Large paper machine drives, winders, calenders, and reel systems needing stable AC power for precise speed and tension control.

• Material Handling & Logistics: Port cranes, overhead traveling cranes, hoists, and heavy‑duty conveyors with frequent start‑stop and high‑load operation.

• Mining & Aggregate Processing: Crushers, belt conveyors, and processing equipment in harsh, dusty mining environments.

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

Compatibility & Availability

• Compatible Systems: Reliance AutoMax PMI processors, DCS 5000 I/O systems, and SA3000DC series rectifier modules (e.g., SA3000DC070).

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

• Refurbished Unit Quality: Fully disassembled, inspected, component‑tested, calibrated, and load‑tested to meet original factory performance specifications, typically backed by a 1‑year warranty.

Advantages

• High Efficiency & Performance: Delivers reliable DC‑AC power conversion with minimal energy loss, supporting high‑speed, high‑torque motor operation.

• Proven Rugged Reliability: Industrial‑grade design and comprehensive protection ensure stable, long‑term operation in demanding production environments.

• Simplified Maintenance: Diagnostic LEDs and modular construction enable quick fault identification and component replacement, reducing unplanned downtime.

• Cost‑Effective Legacy Support: Refurbished SA3000DC140 units provide a budget‑friendly, reliable solution for maintaining critical AutoMax systems without full‑scale upgrades.