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- Honeywell
- 900P24-0301
- HC900 Power Supply
- USA
- 137 x 72.6 mm
- 0.792 kg
- Xiamen, China
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Product Overview
The Honeywell 900P24-0301 HC900 Power Supply Module is a high-reliability 24 VDC switching power supply unit designed for the Honeywell ControlEdge HC900 Distributed Control System (DCS) platform.
It is responsible for converting DC input power into regulated 24 VDC system output, ensuring stable energy distribution to CPU modules, I/O modules, and communication interfaces within the HC900 rack architecture.
Compared with AC-input power modules, the 900P24-0301 is optimized for DC-powered industrial control environments, such as systems using centralized DC bus power or redundant DC supply configurations.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Honeywell |
| Model | 900P24-0301 |
| Product Type | HC900 Power Supply Module |
| Control System | Honeywell ControlEdge HC900 |
| Input Voltage Range | 21–29 VDC |
| Rated Input Power | ~72.5 W |
| Output Voltage | 24 VDC regulated |
| Output Power | ~60 W |
| Conversion Type | DC-DC high-frequency switching converter |
| Efficiency | ~85% industrial efficiency |
| Inrush Current | Up to 30 A (short duration, typical) |
| Hold-up Time | ~20 ms (system dependent) |
| Protection Features | Overvoltage, overcurrent, thermal shutdown |
| Isolation | Reinforced galvanic isolation (input/output) |
| Fuse | Internal non-replaceable fuse |
| Diagnostics | Power status + fault indication LEDs |
| Power Architecture | HC900 rack backplane distribution |
| Cooling Method | Natural convection (fanless design) |
| Mounting Type | HC900 rack-mounted module |
| Dimensions | 137 × 72.6 × 151 mm |
| Weight | 0.792 kg |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity Range | 5% to 95% non-condensing |
Function and Working Principle
The 900P24-0301 operates as a DC-to-DC regulated power conversion module within HC900 automation systems.
Working principle:
- DC Input Reception
Accepts a 21–29 VDC industrial power source. - Switching Conversion Stage
Uses high-frequency switching technology to stabilize and convert voltage levels. - Voltage Regulation
Outputs a regulated 24 VDC supply for system modules. - Backplane Distribution
Supplies power to HC900 CPU, I/O modules, and communication cards. - Protection System
Monitors overload, temperature, and abnormal voltage conditions. - Diagnostic Feedback
Provides real-time LED status for operational monitoring.
Role in System Architecture
The 900P24-0301 module acts as the DC power backbone of HC900 distributed control systems.
It is responsible for:
- Supplying stable DC power to all control modules
- Supporting DC-powered industrial architectures
- Enabling redundant and centralized DC power systems
- Maintaining voltage stability across I/O and CPU racks
- Ensuring uninterrupted operation in 24/7 industrial environments
In system design, it functions as the core energy distribution layer for DC-based HC900 installations.
Industrial Applications
The Honeywell 900P24-0301 is widely used in:
- Oil and gas production systems
- Petrochemical processing facilities
- Power generation control systems
- Offshore and remote industrial installations
- Water treatment and pumping stations
- Industrial automation with centralized DC supply
- Process control systems requiring redundant DC power
- Heavy-duty manufacturing environments
It is especially suitable for DC-bus architectures and systems requiring high reliability under fluctuating power conditions.
Installation & Integration
Proper installation ensures long-term reliability and safety.
- Installed in HC900 rack chassis
- Connected to regulated 24 VDC industrial supply
- Requires proper grounding and shielding
- Must be installed in ventilated control cabinets
- Backplane connectors must be fully seated
- DC polarity must be strictly verified before power-up
- Replacement must be performed under power-off conditions
Compatible Components
The 900P24-0301 module works with:
- Honeywell HC900 CPU modules (C50 / C70 / C75 series)
- Digital and analog I/O modules
- Communication interface modules
- Remote I/O expansion racks
- HMI operator stations (900CR series)
- SCADA systems
- Industrial sensors and actuators
- DC power distribution systems
Together, these form a complete DC-powered distributed control architecture.
Recommended Alternative Models
| Model | Type | Feature | Application |
|---|---|---|---|
| 900P02-0201 | AC Power Supply Module | AC input version | Standard installations |
| 900P02-0101 | AC Power Supply Module | Lower power AC variant | Small systems |
| 900P01-0401 | Redundant Power Module | Safety-rated design | Critical systems |
| 900P24-0401 | SIL-rated DC Power Module | Higher safety integrity | Safety applications |
| External DIN Rail PSU | Alternative | Third-party DC supply | Retrofit systems |
Advantages
- Stable DC-to-DC power conversion for industrial systems
- Supports centralized 24 VDC architectures
- Strong electrical isolation for system protection
- Compact rack-mounted design
- High efficiency switching technology
- Suitable for harsh industrial environments
- Reliable 24/7 continuous operation
- Seamless integration with HC900 architecture
FAQs
Q1: What is the main function of the 900P24-0301 module?
It converts 24 VDC input into regulated system power for HC900 modules.
Q2: What is the input voltage range?
It operates on 21–29 VDC input.
Q3: What output does it provide?
It provides regulated 24 VDC system power.
Q4: Is it suitable for continuous operation?
Yes, it is designed for 24/7 industrial use.
Q5: Where is it commonly used?
In DC-powered industrial automation and process control systems.
Conclusion
The Honeywell 900P24-0301 HC900 Power Supply Module is a critical DC power conversion component designed for stable and efficient energy distribution in industrial control systems. Its robust switching architecture, strong protection features, and compatibility with HC900 systems make it essential for modern automation environments requiring DC-based power infrastructure.