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Honeywell 51401497-100
Overview
The 51401497-100 FW25-92 is a redundant dual-node DC power supply module designed exclusively for Honeywell TDC 3000 and LCN distributed control systems. It delivers isolated, regulated DC power to two critical control nodes in a DCS cabinet, ensuring uninterrupted operation of process control functions even if one power channel fails. The “FW25-92” designation denotes firmware version 25 and hardware revision 92.
Detailed content
Specifications
- Manufacturer: Honeywell (USA)
- Model: 51401497-100
- Firmware/Hardware: FW25-92 (Firmware V25, Hardware Rev. 92)
- Product Type: Dual-Node Power Supply Module
- Input Voltage: 24 VDC (19.2–26.4 VDC tolerance)
- Output: Dual independent, redundant DC channels (supports ±5 V, ±15 V, 24 V DC as per system configuration)
- Redundancy: 1+1 redundant with seamless failover
- Operating Temperature: -40 °C to +70 °C
- Humidity: 5%–95% non-condensing
- Protection: Overvoltage, overcurrent, short-circuit, and thermal shutdown
- Efficiency: 90% at full load
- Status Indicators: LED for Power OK, Fault, and Channel status
- Dimensions: ≈ 88 × 44 × 24 mm (standard DCS card form factor)
- Weight: ≈ 0.15 kg
- Certifications: UL, CE, EN 60950
- Compatibility: Honeywell TDC 3000, LCN, and related DCS platforms
Features
- Two isolated power channels operate in parallel; if one fails, the other assumes full load without downtime
- Wide industrial temperature tolerance and ruggedized components resist vibration and EMI
- Built-in fault protection safeguards downstream DCS hardware
- Plug-and-play direct replacement — no configuration required for basic operation
- High-efficiency design reduces heat generation and extends service life
Applications
Oil & gas refineries and petrochemical plants, thermal and combined-cycle power generation, continuous chemical & pharmaceutical process lines, metals & mining rolling mills and furnace control, pulp & paper, and cement high-availability process automation.
Installation & Notes
Install in the designated LCN DCS power-supply slot. Confirm the 24 VDC input falls within the 19.2–26.4 VDC tolerance window before applying power. Observe correct polarity and bonding to the cabinet earth. Monitor the LED status indicators during commissioning; a Fault LED requires immediate channel isolation and inspection. Because the module is a redundant 1+1 design, never operate with both channels fed from a single non-redundant source — this defeats the failover purpose.
