Description
The Eaton 8922-RB-IS represents a high-availability redundant power supply system designed for critical industrial applications where power continuity is paramount. This integrated solution provides fault-tolerant power delivery to automation systems, process controls, and other mission-critical equipment. The Eaton 8922-RB-IS combines two independent power supply modules with automatic switchover circuitry, ensuring uninterrupted operation even if one power supply unit fails. This redundancy architecture eliminates single points of failure in power distribution, making it an essential component for applications where unexpected downtime could result in significant production losses or safety concerns.
Engineered specifically for harsh industrial environments, the 8922-RB-IS incorporates advanced monitoring and diagnostics capabilities that provide real-time status information about both power supply units and the overall system health. The system typically features hot-swappable design, allowing for maintenance or replacement of individual power modules without interrupting power to the connected load. The Eaton 8922-RB-IS exemplifies Eaton’s expertise in power management solutions, delivering reliable, clean power to sensitive electronic equipment while withstanding the electrical noise, temperature variations, and vibration commonly encountered in industrial settings. Its design focuses on maximizing mean time between failures (MTBF) while minimizing mean time to repair (MTTR), resulting in exceptional system availability.

8922-RB-IS EATON
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | 8922-RB-IS |
| Manufacturer | Eaton Corporation |
| Product Type | Redundant Power Supply System |
| Input Voltage | 120/230V AC (auto-ranging) |
| Input Frequency | 47-63Hz |
| Output Voltage | 24V DC |
| Output Current | 20A per module (40A total capacity) |
| Redundancy | N+1 configuration |
| Efficiency | >90% at full load |
| Load Sharing | Active current sharing |
| MTBF | >1,000,000 hours |
| Operating Temperature | -25°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Cooling Method | Intelligent forced air cooling |
| Communication Interface | RS-485 with MODBUS protocol |
| Safety Certifications | UL 508, cULus, CE, ATEX |
| Protection Features | Overload, overvoltage, short circuit, overtemperature |
Main Features and Advantages
The Eaton 8922-RB-IS redundant power system delivers exceptional reliability through its advanced N+1 architecture that ensures continuous operation even during complete failure of one power module. The system features active current sharing technology that evenly distributes load between modules, preventing any single unit from operating at maximum capacity and extending overall system life. Advanced diagnostic capabilities include real-time monitoring of input voltage, output voltage, load current, internal temperature, and operational status of each power module, providing comprehensive system visibility through both local indicators and remote communication interfaces. These diagnostics enable predictive maintenance strategies and early detection of potential issues before they impact system operation.
Hot-swappable module design represents a significant advantage of the Eaton 8922-RB-IS, allowing maintenance personnel to replace failed power modules without system shutdown or interruption to connected equipment. The system incorporates comprehensive electrical protection including automatic overload recovery, overvoltage protection that safeguards sensitive connected equipment, and overtemperature protection that prevents thermal damage under adverse conditions. The 8922-RB-IS also features advanced communication capabilities through RS-485 interface with MODBUS protocol support, enabling integration with building management systems, SCADA networks, and other monitoring systems for centralized power management. These features combine to create a power solution that delivers maximum availability, operational flexibility, and system intelligence for critical industrial applications.
Application Field
The Eaton 8922-RB-IS finds critical application across numerous industries where power availability directly impacts operational continuity, safety, and profitability. In manufacturing automation, the system provides fault-tolerant power to PLC systems, robot controllers, and vision systems in automotive production facilities, semiconductor fabs, and food processing plants where unexpected downtime results in significant financial losses. The Eaton 8922-RB-IS is essential in process industries including oil refineries, chemical plants, and pharmaceutical manufacturing where continuous operation is necessary for process safety, product quality, and regulatory compliance. Its robust design and redundancy capabilities make it particularly valuable in these environments where power quality issues or failures could lead to dangerous situations or expensive product loss.
In critical infrastructure applications, the 8922-RB-IS provides reliable power to transportation control systems, water treatment facilities, and energy distribution systems where uninterrupted operation is essential for public safety and service continuity. The system’s communication capabilities and high reliability make it ideal for data center applications supporting industrial automation systems, where it provides clean, continuous power to servers, network equipment, and storage systems. Telecommunications infrastructure also utilizes the Eaton 8922-RB-IS for powering base station controllers and network equipment that must maintain operation during power fluctuations or outages. In each application, the system addresses the critical need for power redundancy that ensures continuous operation of essential systems despite power module failures or maintenance requirements.

8922-RB-IS EATON
Related Products
Eaton 8922-PS-24: Standalone power supply module compatible with redundant system
Eaton 8922-MT: Maintenance module for enhanced system monitoring
Eaton 8922-CM: Communication module for advanced system integration
Eaton 8920-PS-DC: Standard DC power supply for non-redundant applications
Eaton 8924-RB-IS: Higher capacity redundant power system (30A per module)
Eaton 8921-DP: Distribution panel for power system applications
Eaton 8925-BP: Battery backup module for extended runtime requirements
Eaton 8923-MN: Monitoring module for power system diagnostics






Email: sales@runshengdcs.com
WhatsApp / Wechat:+86 15383419322
Phone:+86 15383419322