ABB ACS800-704LC-2150-7 2200A DC Liquid-Cooled Multidrive Supply Unit

13 Jun, 2026
Posted by: Mehul Vadher

ABB ACS800-704LC-2150-7 Drive Supply Unit

Condition: USED – Fully Tested & Operational | SKU: 188069 | Weight: 191 Kg

Origin: Finland | Availability: In Stock | Frame: R8i

✅ 30-Day Aeliya Warranty | 🚚 Free Global Shipping | 🔧 Technical Support Included

The ABB ACS800-704LC-2150-7 Drive Supply Unit is a high-power liquid-cooled supply module engineered for ABB's flagship ACS800 multidrive platform. Capable of delivering 513–932 VDC at up to 2200 A DC output, this R8i frame drive supply unit forms the backbone of heavy-duty industrial drive systems requiring continuous, reliable DC bus power. Whether you're building a new multidrive configuration, expanding an existing system, or replacing a failed supply module in a critical process line, this ABB ACS800 drive supply unit offers industrial-grade performance at a fraction of OEM new pricing.

At Aeliya Marine Tech, we specialize in sourcing and certifying premium used industrial automation equipment. Every unit—including this ABB ACS800-704LC-2150-7—is inspected, tested, and backed by our 30-day warranty with free worldwide shipping. With an input rating of 380–690 VAC at 1796 A and advanced liquid cooling for thermal management, this DSU is ideal for steel rolling mills, marine propulsion systems, pulp and paper processing, oil & gas compression, and large-scale material handling operations.

Product Overview: ABB ACS800-704LC-2150-7 Drive Supply Unit

The ABB ACS800 multidrive system is ABB's premier solution for complex industrial applications requiring multiple motor control from a single DC bus. The ACS800-704LC-2150-7 serves as the drive supply unit (DSU)—the power conversion stage that transforms incoming three-phase AC mains into a regulated DC bus voltage for distribution to individual inverter modules.

What sets this unit apart is its liquid-cooled (LC) architecture. Unlike air-cooled alternatives that depend on ambient airflow and bulky heat sinks, the liquid-cooled drive design uses integrated coolant channels to extract heat directly from the power semiconductors (IGBTs). This delivers three critical advantages:

Higher power density: The R8i frame packs 2200 A DC capability into a remarkably compact footprint—critical for crowded electrical rooms and marine engine rooms.
Consistent thermal performance: Liquid cooling maintains stable operating temperatures regardless of ambient conditions, preventing thermal derating in hot environments up to 60°C.
Reduced audible noise: Elimination of large cooling fans makes this DSU suitable for noise-sensitive applications such as offshore platforms and enclosed industrial facilities.

This particular unit (catalog variant 68648858) was manufactured in Finland to ABB's rigorous quality standards and carries the full R8i frame construction, ABB's largest standard frame size for the ACS800-704LC series. The 2150-7 suffix denotes the 690V class input voltage range and 7th generation control hardware, ensuring compatibility with modern ACS800 multidrive configurations.

Technical Specifications

Parameter	Specification
Manufacturer	ABB Oy, Finland
Model / Type Code	ACS800-704LC-2150-7 (Catalog No. 68648858)
Product Category	Drive Supply Unit (DSU) / Active Supply Unit
Input Voltage	380–690 VAC, 3-phase
Input Current	1796 A (nominal)
Input Frequency	48–63 Hz
Output Voltage (DC Bus)	513–932 VDC
Output Current (DC)	2200 A DC (maximum)
Cooling Method	Liquid Cooled (LC) – closed-loop coolant circuit
Frame Size	R8i (ABB's largest standard multidrive frame)
Physical Weight	191 Kg (421 lbs)
Country of Origin	Finland
Condition	USED – Tested & Certified Operational

Key Features & Benefits

2200 A DC Output Capability: Delivers industry-leading DC bus current to power multiple inverter modules simultaneously, supporting total system outputs exceeding 1 MW in multidrive configurations.
Liquid Cooling Technology (LC): Advanced closed-loop thermal management removes heat efficiently via liquid coolant, enabling full-power operation in ambient temperatures up to 60°C without derating—ideal for hot climates and enclosed installations.
Wide Input Voltage Range (380–690 VAC): Compatible with standard industrial supply voltages worldwide, including 380V, 400V, 415V, 440V, 480V, 500V, 600V, and 690V networks per IEC 60038 standards.
R8i Rugged Frame Construction: ABB's largest and most robust frame design features reinforced mechanical structure, heavy-duty bus bars, and industrial-grade power semiconductor modules rated for decades of continuous service.
Active Front-End (AFE) Topology: The ACS800-704 series uses IGBT-based active supply technology for regenerative operation, unity power factor, and low harmonic distortion (THDi < 5%), eliminating the need for external harmonic filters in most installations.
Direct Compatibility with ACS800 Multidrive: Designed specifically for integration into ABB ACS800 multidrive cabinets, sharing the same DC bus architecture, control interfaces, and communication protocols (DriveBus, Modbus, PROFIBUS, DeviceNet).
Integrated Protection Systems: Built-in overcurrent, overvoltage, undervoltage, ground fault, and thermal protection with SIL-rated safety circuits for compliance with IEC 61800-5-1.
Cost-Effective Used Alternative: This tested used unit delivers equivalent performance to new at approximately 40–60% savings—backed by Aeliya Marine Tech's 30-day operational warranty.

Need This ABB ACS800 Drive Supply Unit for Your System?

This 2200A DC liquid-cooled DSU is in stock and ready to ship. Don't let a failed supply unit halt your production line.

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Industrial Applications for the ABB ACS800-704LC-2150-7

The ABB ACS800-704LC-2150-7 with its 2200 A DC output is purpose-built for the most demanding industrial sectors. Here are the primary application environments where this drive supply unit excels:

Steel & Metal Processing

In hot rolling mills, cold rolling mills, and processing lines, multidrive systems with high-current DSUs power multiple DC or AC motors driving work rolls, pinch rolls, coilers, and uncoilers. The 1796A input capability ensures adequate power reserve for peak torque demands during slab compression and rapid acceleration cycles. The liquid cooling is especially beneficial in steel plants where ambient temperatures routinely exceed 50°C.

Marine Propulsion & Thruster Systems

Electric propulsion systems on offshore supply vessels, dynamic positioning (DP) rigs, and cruise ships rely on ABB ACS800 multidrives for main propulsion and azimuth thruster control. The liquid-cooled design withstands the confined, high-temperature engine room environments typical of marine installations. ABB's marine-classified drives meet DNV GL and Lloyd's Register requirements for vessel safety.

Pulp & Paper Manufacturing

Paper machines require precise speed synchronization across multiple drive sections—wire section, press section, dryer section, and reel. The ACS800 multidrive architecture allows a single drive supply unit to feed 8–16 inverter modules controlling individual machine sections. The 2200 A DC capacity supports even the widest paper machines running at production speeds exceeding 1,500 m/min.

Oil & Gas Compression

Onshore and offshore gas compression stations use high-power variable-speed drives on electric motors driving centrifugal and reciprocating compressors. The ACS800-704LC series is rated for Class I Division 2 hazardous locations when installed in appropriate enclosures, with liquid cooling eliminating the ignition risks associated with fan-cooled equipment.

Material Handling & Mining Conveyors

Large-scale conveyor systems in mining operations—moving ore over distances of 10+ kilometers—require multi-megawatt drive systems. The R8i frame drive supply unit provides the high DC bus capacity needed to power multiple inverter modules along the conveyor route while maintaining consistent belt tension and controlled starting torque.

Why Buy From Aeliya Marine Tech?

Trusted Global Supplier of Industrial Automation

Aeliya Marine Tech has served the industrial automation, marine technology, and power generation sectors for over two decades. Our Dubai-based facility stocks thousands of used and refurbished drives, PLCs, power supplies, and control modules from leading manufacturers including ABB, Siemens, GE, Schneider Electric, and Rockwell Automation.

What You Get With Every Purchase:

30-Day Operational Warranty – Every product tested before shipment; if it doesn't work as specified, we replace or refund.
Free Worldwide Shipping – Door-to-door delivery via DHL, FedEx, or air freight at no extra cost.
Technical Pre-Sales Support – Our engineers verify compatibility with your existing ACS800 system before you buy.
Certified Packaging – Industrial-grade crates with shock absorption for safe international transport of 191 Kg units.
Documentation Support – Wiring diagrams, parameter lists, and installation manuals provided on request.

Installation & Integration Guide

Proper installation of the ACS800-704LC-2150-7 is critical for safe, reliable operation. Follow these guidelines or consult ABB's official documentation (ACS800 Multidrive Catalog) for detailed procedures.

Step 1: Mechanical Mounting

The R8i frame must be installed vertically in a suitable ABB ACS800 multidrive cabinet or custom enclosure rated for IP54 minimum. Use M12 bolts through the base mounting flanges. Ensure minimum 200 mm clearance above and below for coolant hose routing. The 191 Kg weight requires adequate cabinet floor reinforcement or mounting on a structural steel base plate.

Step 2: Coolant Circuit Connection

Connect the liquid cooling inlet (bottom) and outlet (top) using flexible stainless steel hoses with 1-inch BSP fittings. Recommended coolant: 40/60 glycol-water mixture with corrosion inhibitors. Minimum flow rate: 15 liters/minute. Maximum inlet temperature: 45°C. Install a pressure gauge and flow sensor in the circuit for monitoring.

Step 3: Power Wiring

Connect the three-phase AC input (L1, L2, L3) via suitably rated copper bus bars or cables (minimum 8 parallel runs of 240 mm² per phase at 690V). Connect the DC output (+DC, -DC) to the common DC bus bars shared with inverter modules. Torque all bus bar connections to ABB's specified values (typically 50–70 Nm for M12 bolts).

Step 4: Control & Communication

Connect the DriveBus cable to the RMIO control board for communication with the ACS800 master controller. Configure parameters 16.01 (module type), 16.03 (DC bus voltage setpoint), and 16.09 (current limit) via the control panel or DriveWindow PC tool.

Step 5: Commissioning & Testing

Verify coolant flow and leak-test all connections before applying power. Ramp DC bus voltage gradually from 0V to rated value while monitoring phase currents and DC ripple. Confirm THDi < 5% at full load. Run a 4-hour burn-in test at 80% load before releasing to production.

Safety Note: Only qualified electrical technicians should install this equipment. Follow NFPA 70 (NEC) and local electrical codes. Capacitors retain hazardous voltages for up to 5 minutes after power disconnection.

Frequently Asked Questions (FAQ)

Q1: What is the ABB ACS800-704LC-2150-7 used for?

The ABB ACS800-704LC-2150-7 is a drive supply unit (DSU) that converts three-phase AC input power (380–690 VAC) into DC bus power (513–932 VDC at up to 2200 A) for ABB ACS800 multidrive systems. It serves as the central power conversion stage that feeds multiple inverter modules controlling AC motors in industrial applications such as steel mills, marine propulsion, paper machines, and mining conveyors.

Q2: What does "liquid-cooled" mean, and why is it better than air-cooling?

Liquid cooling uses a closed-loop coolant circuit (typically water-glycol mixture) flowing through channels integrated into the power module to extract heat directly from IGBT semiconductors. Compared to air cooling, it offers higher power density (more power in less space), consistent thermal performance in hot environments, lower audible noise (no fans), and no reliance on ambient airflow—making it ideal for enclosed cabinets, marine engine rooms, and high-temperature industrial plants.

Q3: Is this used drive supply unit reliable? What testing does Aeliya perform?

Yes. Every used ABB ACS800 drive supply unit at Aeliya Marine Tech undergoes comprehensive testing including: visual inspection for physical damage, insulation resistance testing (megger test at 1000V DC), power semiconductor health check (IGBT Vce and gate threshold verification), capacitor ESR measurement, cooling circuit pressure testing, and a full-load burn-in test at rated current for a minimum of 2 hours. Units are backed by our 30-day operational warranty.

Q4: What is the R8i frame, and will it fit my existing ACS800 cabinet?

The R8i is ABB's largest standard frame size for ACS800-704 series drive supply units. The frame measures approximately 700 mm (W) × 600 mm (D) × 1200 mm (H). It is designed for installation in ABB's standard R8i multidrive cabinets, which provide the required mechanical support, bus bar routing, and coolant connections. If you're replacing an existing R8i DSU, this unit is a direct mechanical and electrical replacement. For new installations, ensure your cabinet is R8i-compatible.

Q5: Can I use this DSU with non-ABB inverter modules?

Technically, any inverter module that accepts a DC bus input within 513–932 VDC range can be powered by this DSU. However, the DriveBus communication protocol, parameter synchronization, and safety interlocks are proprietary to ABB ACS800 inverter modules (such as the ACS800-104LC series). For optimal performance and warranty support, ABB recommends using matched ACS800 inverter modules within the same multidrive system.

Q6: How much does a new ABB ACS800-704LC-2150-7 cost compared to this used unit?

A new ABB ACS800-704LC-2150-7 (or its current production equivalent in the ACS880 series) typically costs between $45,000 and $65,000 USD depending on configuration, options, and regional pricing—plus 12–26 week lead time from order. This used, tested unit represents a savings of approximately 50–67% with immediate availability and free global shipping. For budget-conscious maintenance managers and system integrators, buying quality used industrial drives from Aeliya Marine Tech is the most cost-effective path to restoring or expanding multidrive capacity.

Q7: What coolant specifications does ABB recommend for the liquid-cooling circuit?

ABB recommends a 40% ethylene glycol / 60% deionized water mixture with industrial corrosion inhibitors. The coolant must have electrical conductivity below 1 µS/cm to prevent galvanic corrosion of aluminum cooling channels. Operating temperature range: +5°C to +45°C inlet temperature. Minimum flow velocity: 2 m/s through the module. Replace coolant every 2 years or per manufacturer guidelines.

Q8: Do you offer technical support after purchase?

Absolutely. Aeliya Marine Tech provides free technical support for all purchased equipment. Our engineering team can assist with installation guidance, parameter configuration via phone/email, compatibility verification with your existing system, and troubleshooting during commissioning. For complex installations, we can arrange on-site technical assistance (travel costs apply). Contact us at sales@aeliyamarinetech.com

External Technical Resources

ABB ACS800 Multidrive Catalog (PDF) – Official product catalog with full technical specifications, dimensional drawings, and selection guides.
IEEE Standards – Reference for IEEE 519 (harmonic control) and IEEE 1566 (medium-voltage drives) applicable to drive system design.
IEC 61800-5-1 – Safety requirements for adjustable speed electrical power drive systems.
DNV GL Maritime – Classification society standards for marine electrical propulsion systems using ABB drives.

🔥 ABB ACS800-704LC-2150-7 – In Stock & Ready to Ship

2200A DC Liquid-Cooled Drive Supply Unit

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📞 Questions? email sales@aeliyamarinetech.com