Description
ABB PF900-NR 3BDH000357 Power Feed Module Product Description
Product Overview
ABB PF900-NR (3BDH000357) is a Power Feed Module designed for the ABB FieldIT / LD 800P PROFIBUS DP/PA fieldbus system. It provides a reliable 24 VDC power supply feed for ABB PR 900-N Power Rail systems, supplying power to connected modules such as PROFIBUS linking devices, Power Link Modules, and other FieldIT components.
The ABB PF900-NR 3BDH000357 is mainly used in ABB process automation architectures, including 800xA DCS, AC 800M controller systems, and PROFIBUS PA communication networks. It provides redundant power input capability, fault monitoring, and centralized power distribution for modular fieldbus installations.
Designed for continuous industrial operation, PF900-NR improves system availability by supporting redundant 24 VDC power configurations. When installed with the ABB PR 900-N Power Rail, multiple modules can share a stable power bus while maintaining diagnostic monitoring and fault alarm capability.
Technical Specifications
| Parameter | Description |
|---|---|
| Product Model | PF900-NR |
| ABB Order Number | 3BDH000357 |
| Manufacturer | ABB |
| Product Type | Power Feed Module |
| Product Family | ABB FieldIT / LD 800P |
| Main Function | 24 VDC power supply feed for Power Rail |
| Compatible Rail | PR 900-N Power Rail |
| Input Voltage | 24 VDC |
| Input Configuration | Dual redundant power inputs |
| Output Voltage | 24 VDC |
| Output Current | 4 A maximum |
| Parallel Expansion | Up to 10 A with dual modules |
| Power Connection | Plug-in screw terminals |
| Fault Monitoring | Integrated fault evaluation |
| Alarm Output | Relay fault signal output |
| Status Indicators | Green RUN LED / Red FAULT LED |
| Installation Method | Power Rail mounting |
| Protection Class | IP20 (cabinet installation) |
| Application | DCS, PLC, PROFIBUS DP/PA systems |
Main Features and Advantages
Reliable 24 VDC Power Distribution
The primary function of ABB PF900-NR 3BDH000357 is to provide stable DC power to ABB Power Rail-based automation systems. It supplies connected communication and interface modules with regulated 24 VDC power, ensuring reliable operation of fieldbus components.
Redundant Power Supply Capability
PF900-NR supports two independent 24 VDC supply inputs. This redundant architecture improves system availability by allowing continued operation if one power source fails.
This feature is especially important in:
- Power plants
- Chemical processing facilities
- Oil and gas installations
- Continuous production environments
where interruption of field communication can result in significant process downtime.
Power Rail Integration
The module is designed specifically for ABB PR 900-N Power Rail systems. It provides centralized power distribution for multiple ABB FieldIT modules, simplifying cabinet wiring and improving system organization.
Typical connected modules include:
- HS810 Head Station
- HS820 / HS840 Head Stations
- PL810 PROFIBUS PA Power Link Modules
- Other FieldIT interface modules
PF900-NR
Integrated Fault Diagnosis
The ABB PF900-NR 3BDH000357 includes built-in monitoring functions for:
- Short circuit detection
- Overcurrent conditions
- Supply voltage problems
- Power module faults
When a fault occurs, the module activates its fault relay output and front-panel diagnostic indication, allowing integration with higher-level monitoring systems.
LED Status Indication
The front panel provides visual diagnostic information:
- Green LED: Normal power supply operation
- Red LED: Fault condition detected
This simplifies troubleshooting during commissioning and maintenance.
High Reliability Industrial Design
Designed for process automation applications, PF900-NR provides stable performance in industrial environments affected by:
- Electrical interference
- Temperature variations
- Continuous operation requirements
Its modular construction supports easy replacement and reduced maintenance time.
Easy Maintenance and Replacement
The plug-in design of the ABB PF900-NR allows technicians to replace the module quickly without extensive cabinet rewiring.
Benefits include:
- Reduced downtime
- Simplified troubleshooting
- Lower maintenance cost
- Improved system availability
Application Areas
ABB 800xA Distributed Control Systems
ABB PF900-NR 3BDH000357 is commonly used in ABB automation architectures to provide power distribution for PROFIBUS communication modules and field interface equipment.
PROFIBUS DP/PA Fieldbus Networks
The module supports ABB LD 800P fieldbus solutions, providing power for PROFIBUS PA linking equipment and communication components.
Typical applications include:
- Pressure transmitters
- Flow meters
- Temperature instruments
- Valve positioners
- Process analyzers
Power Generation Industry
Power plants use ABB FieldIT systems for:
- Boiler instrumentation
- Turbine auxiliary monitoring
- Water treatment systems
- Plant process control
PF900-NR ensures stable power availability for field communication equipment.
Oil and Gas Facilities
Oil and gas plants require highly reliable field communication networks. The redundant power design of PF900-NR supports critical instrumentation systems in harsh industrial environments.
Chemical and Petrochemical Plants
Process industries depend on continuous operation and reliable instrumentation. ABB power feed modules provide stable supply for distributed field devices and communication networks.
Water Treatment and Manufacturing
The module is suitable for automation systems requiring reliable 24 VDC distribution for PLC/DCS field devices.
Related Products
- ABB HS810 3BDH000305R0101 – PROFIBUS DP/PA Head Station Module.
- ABB PL810 3BDH000311R0101 – PROFIBUS PA Power Link Module.
- ABB PR900-N 3BDH000355 – Power Rail for PF900-NR and FieldIT modules.
- ABB EP900-N 3BDH000356 – Extension Plug for PR900-N Power Rail.
- ABB PC900-NR 3BDH000353 – Power Conditioner Module.
- ABB LD800P – PROFIBUS DP/PA Linking Device system.
- ABB AC800M Controller – Process controller platform for ABB automation systems.
