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Honeywell 51199942-300 C300 Controller System Backup Battery

The Honeywell 51199942-300 is a 3.6V 3000mAh Ni-MH rechargeable backup battery pack engineered for the Experion PKS C300 controller’s memory retention.
Description
Brief Product Description
The Honeywell 51199942-300 is a high-capacity Ni-MH rechargeable backup battery designed specifically for the Experion PKS C300 controller.1 It ensures the retention of critical control strategies and configuration data during primary power interruptions.
Critical Power Safeguarding for C300 Controllers
The Honeywell 51199942-300 functions as the primary emergency power reservoir for the C300 Controller within the Experion Process Knowledge System (PKS). This Nickel-Metal Hydride (Ni-MH) battery pack provides the necessary voltage to preserve volatile memory and internal clock settings whenever the main power supply fails.2 By maintaining this energy reserve, the module prevents the loss of complex control algorithms and historical data, which facilitates a rapid and safe system recovery once power is restored.3 Consequently, this battery is an indispensable component for facilities where process continuity and data integrity are mandatory.
Engineered for Longevity and Environmental Resilience
Honeywell utilizes high-grade cell technology in the 51199942-300 to meet the rigorous demands of industrial automation environments.4 This 3.6V 3000mAh pack operates reliably across the broad temperature ranges typically found in control rooms and remote instrument enclosures. Because it employs a rechargeable Ni-MH chemistry, the battery maintains a stable charge cycle over an extended service life, significantly outperforming standard lithium-based alternatives in high-heat conditions.5 Furthermore, the compact housing ensures a precise fit within the C300 RAM retention assembly, providing a vibration-resistant connection that prevents accidental disconnection during routine maintenance or equipment transport.
Optimized Maintenance and System Reliability
Integrating the 51199942-300 into a predictive maintenance schedule allows plant engineers to significantly reduce the risk of unrecoverable controller shutdowns. While the Experion system provides digital monitoring of battery health, the physical durability of this module ensures that the hardware remains ready to deploy during unexpected outages. Transitioning to a fresh battery module every few years—or as indicated by system diagnostics—extends the lifecycle of the C300 controller and protects the underlying investment in automation logic. This proactive approach to power management proves particularly valuable in sectors like oil refining and power generation, where even a momentary data loss can lead to substantial operational setbacks.
Technical Characteristics
- High-Density Ni-MH Chemistry: Provides 3000mAh of capacity for long-duration memory retention.
- Seamless C300 Integration: Designed for a direct plug-and-play fit into the Series C controller architecture.6
- Rechargeable Architecture: Automatically charges while the system is powered, ensuring readiness for emergencies.
- Data Integrity Protection: Secures the controller’s RAM contents, preventing the need for manual reloads after power failures.7
- Industrial Temperature Rating: Sustains performance in environments ranging from -40°C to +70°C.
- Compact Form Factor: The 12.1 x 7.1 x 5.1 cm dimensions allow for high-density hardware arrangements.
Technical Specifications
| Feature | Specification Detail |
| Manufacturer | Honeywell |
| Part Number | 51199942-300 |
| Battery Type | Nickel-Metal Hydride (Ni-MH) |
| Voltage | 3.6V |
| Capacity | 3000mAh |
| System Compatibility | Honeywell Experion PKS C300 Controller |
| Weight | 0.26 kg |
| Dimensions | 12.1 cm x 7.1 cm x 5.1 cm |
| HS Code | 8537101190 |
| Origin | USA |
Additional information
| Weight | 0.26 kg |
|---|---|
| Country of Origin | USA |
| Dimension | 12.1 x 7.1 x 5.1cm |
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