Description
Detailed Parameter Table
| Parameter Name | Parameter Value |
| Product Model | 3BHE055094R0002 GBU72 |
| Manufacturer | ABB |
| Product Category | Generator Backup Unit (DC-UPS) |
| Input Voltage | 110/220V AC ±15% (auto-ranging) |
| Output Voltage | 72V DC nominal (65-80V DC range) |
| Power Rating | 1500W continuous / 2500W peak (10s) |
| Battery Configuration | 6× 12V lead-acid (external) |
| Transfer Time | < 500 μs |
| Efficiency | > 94% @ full load |
| Communication Interface | CAN bus / Modbus RTU |
| Protection Features | Overload, short-circuit, thermal shutdown |
| Operating Temperature | -20°C to +60°C |
| MTBF | > 300,000 hours |
| Safety Certification | IEC 62040-3, UL 1778 |
ABB 3BHE055094R0002 GBU72
Product Introduction
The ABB 3BHE055094R0002 GBU72 is a mission-critical DC uninterruptible power supply designed to protect automation systems during mains failure. As part of ABB’s Generator Backup Unit series, this robust module ensures continuous operation of ABB’s AC 800M controllers, protection relays, and critical I/O subsystems. The GBU72 employs double-conversion technology with active power factor correction (PFC), delivering clean 72V DC power regardless of input quality.
Engineered for power generation and transmission applications, this unit seamlessly transitions between grid power and battery backup with sub-millisecond switching. Its intelligent battery management extends battery life through temperature-compensated charging and automatic discharge testing. The ABB 3BHE055094R0002 GBU72 integrates with ABB’s System 800xA for centralized monitoring, providing real-time health diagnostics and predictive failure alerts across distributed control architectures.
Core Advantages and Technical Highlights
Zero-Interruption Power Transfer:
Utilizing IGBT-based inverter technology, the ABB 3BHE055094R0002 GBU72 achieves <500μs transfer time during grid failures – 20× faster than conventional UPS systems. This prevents controller reboot cycles that could disrupt critical processes.
Adaptive Battery Management:
Patented charging algorithms extend battery life by 30% through 3-stage charging (bulk/absorption/float) with ±0.5% voltage tolerance. Automatic monthly self-tests validate runtime capacity without manual intervention.
Grid Disturbance Immunity:
Withstands 100% voltage sags and surges up to 275V AC. Harmonic distortion <3% at full load ensures sensitive electronics protection. Integrated EMI/RFI filters meet EN 55022 Class B emissions standards.
Cyber-Secure Monitoring:
Encrypted CAN bus communication prevents unauthorized access to power infrastructure. Event logging stores 2,000 timestamped records for forensic analysis after power events.
Typical Application Scenarios
In thermal power plants, the ABB 3BHE055094R0002 GBU72 sustains turbine emergency trip systems during grid collapses, allowing controlled spin-down to prevent catastrophic damage. Its -20°C cold-start capability ensures reliability in substation control houses.
For offshore platforms, the module provides 72V DC backup to wellhead safety valves and gas detection systems, maintaining SIL 3 safety functions through blackouts. The corrosion-resistant enclosure (IP42) withstands salt spray environments. In paper mills, the GBU72 bridges power gaps between grid and generator synchronization, preventing production losses exceeding $10,000/minute during transfer operations.
Related Model Recommendations
BAT72-12 Battery Pack: 72V 38Ah SLA battery cabinet
PSU72-10 Power Supply: Complementary 72V DC main supply
PM865 Controller: Primary protected load
RER665 Protection Relay: Critical grid device requiring backup
BMC20 Battery Monitor: External battery condition sensor
SD823 DC-DC Converter: Voltage adaptation for legacy systems
TA521 Redundancy Kit: Parallel operation for N+1 configuration
ABB 3BHE055094R0002 GBU72
Installation, Commissioning and Maintenance Instructions
Installation Preparation:
Ensure concrete floor mounting for battery cabinets (>200kg). Maintain 100mm clearance around ventilation grilles. Use 35mm² copper cables for battery connections with torque-limited lugs (25Nm). Install ABB-supplied DC fuses (200A gPV) within 0.5m of battery bank.
Maintenance Recommendations:
Quarterly measure battery impedance using ABB BATTOOL. Annually clean fan filters and verify airflow (>200 CFM). Replace batteries when capacity drops below 80% (typically 5-year cycle). Calibrate voltage sensors via PCM600 software every 24 months. Never mix battery types/ages in 3BHE055094R0002 GBU72 systems.
Service and Guarantee Commitment
ABB provides a 60-month warranty for the 3BHE055094R0002 GBU72, including battery performance guarantees for 36 months. Platinum support includes 24/7 remote monitoring through ABB Ability™ platform with predictive failure alerts. Lifecycle commitment ensures 15-year spare parts availability and firmware updates for cybersecurity compliance.
All units undergo rigorous validation:
72-hour full-load burn-in
500+ transfer cycle testing
EN 61000-4 surge immunity tests
Seismic simulation to IEC 60068-3-3
Extended warranty options include on-site battery maintenance and emergency replacement within 8 hours for critical sites.
