The Honeywell 51452525‑001, also cataloged as the 51452525 Switching Power Supply, operates as a dedicated hardware component for dual‑rail AC‑to‑DC conversion supporting Honeywell HC900 PAC/PLC rack assemblies.
Hardware Specifications
Parameter
Specification
Model
51452525‑001
Brand
Honeywell
Origin
USA
Input Voltage
90–264 VAC, 47–63 Hz (0.7 A max)
Output Ratings
5 VDC at 2 A max, 24 VDC at 0.9 A max
Total Power
29 W continuous
Operating Temperature
0 deg C to 60 deg C (32 deg F to 140 deg F)
System Association
Rack power supply for HC900 PAC/PLC controllers
Channel-to-Channel Isolation
The dual‑output design provides isolated 5 VDC and 24 VDC rails, reducing cross‑load interaction between logic circuits and field devices. This separation ensures stable voltage regulation under varying downstream consumption, supporting deterministic behavior in HC900 control racks.
Frequently Asked Questions
Q: Can the 51452525‑001 be replaced while energized? A: No. AC‑input power supplies must be fully de‑energized before removal to prevent rack or wiring damage.
Q: Does the module support redundant supply configurations? A: Redundancy depends on the HC900 rack architecture; parallel supply configurations may be supported when installed in compatible slots.
Q: Is the 29 W rating continuous or peak? A: The module provides 29 W continuous output across its dual DC rails.
Field Installation Guidelines
Ensure proper AC mains wiring with secure terminal engagement and correct polarity.
Maintain separation between AC input conductors and low‑voltage DC outputs to reduce noise coupling.
Use shielded wiring for 24 VDC field circuits when installed near high‑energy equipment.
Verify that downstream loads do not exceed the 2 A (5 VDC) or 0.9 A (24 VDC) limits.
Allow adequate ventilation around the supply to prevent thermal buildup.
