The Honeywell 05701-A-0405 is a 16-Way AC-to-DC Power Supply Unit designed for industrial automation and safety systems, specifically as a critical power backbone for the Honeywell System 57 gas detection and control platform. It provides stable, regulated power to System 57 rack-mounted modules, sensors, and accessories in hazardous environments. Below is a detailed breakdown based on technical documentation and specifications:
- Brand: Honeywell
- Model: 05701-A-0405
- Product Type: 1U High, 19-inch Rack-Mounted Power Supply Unit
- Series: Honeywell System 57 Power Supplies
- Application: Gas detection systems, process control, and industrial automation requiring reliable power distribution.
- Function: Converts AC or DC input voltage to a stable 24V DC output for System 57 modules, with modular expandability for higher power demands.
Modular Power Expansion:
- Supports up to four 50 W power modules (including base unit) for scalable power delivery, ideal for systems requiring redundancy or high capacity.
Wide Input Compatibility:
- Auto-sensing AC/DC input eliminates the need for manual voltage adjustments, ensuring global applicability in diverse industrial settings.
Reliable Performance:
- Regulated 24 V DC output ensures stable power to System 57 modules, minimizing voltage fluctuations that could affect sensor accuracy or system reliability.
Space-Efficient Design:
- 1U rack-mount form factor maximizes space utilization in control panels or cabinets, aligning with the compact design philosophy of System 57.
Thermal Management:
- Passive cooling with convection airflow (no fans) reduces maintenance requirements and noise, while vented housing ensures optimal heat dissipation even in high-power configurations.
- Gas Detection Systems: Powers System 57 controllers, sensors (e.g., catalytic, 4–20 mA), and relay cards in oil refineries, chemical plants, and wastewater treatment facilities.
- Industrial Automation: Provides reliable power to process control systems, machinery interlocks, and safety shutdown devices.
- Critical Infrastructure: Ensures continuous operation in mission-critical environments like power generation, mining, and marine applications.
- Wiring: Connects to System 57 racks via a twin-core cable for 24 V DC distribution. Additional subunits (e.g., 05701-A-0441) are daisy-chained for increased power capacity.
- Ventilation: Requires adequate airflow in the rack to maintain safe operating temperatures, especially when operating at full capacity (e.g., 200 W). Honeywell recommends avoiding obstructions around vent holes.
- Redundancy: Multiple power supply units can be configured in parallel to ensure uninterrupted operation in case of a module failure.
- User Manuals: Available through Honeywell’s official support portal, detailing wiring diagrams, installation guidelines, and troubleshooting for System 57 integration (e.g., Honeywell 5701 Operating Instructions Manual).
- Datasheets: Provide technical specifications, pinouts, and compliance certifications for specific model variants.
- Model Variants:
- The 05701-A-0405 is part of a broader power supply family, including the 8-way 50 W unit (05701-A-0406) and upgradeable subunits (05701-A-0440/0441).
- Power Calculation:
- Total system power consumption must not exceed the power supply’s rated capacity. For example, a 200 W configuration supports up to 16 gas sensors (12.5 W per channel).
- Third-Party Sources:
- Specifications are compiled from Honeywell’s official documentation and third-party distributors. For definitive technical details, consult Honeywell’s literature or contact their technical support.
For precise installation and maintenance procedures, refer to the Honeywell System 57 User Manual or visit Honeywell’s Industrial Safety website.
