Honeywell 900P24-0501 24VDC Power Supply
Product Introduction
The Honeywell 900P24-0501 delivers stable DC power to your 900 series rack. It accepts a nominal 24VDC input with a wide range from 21 to 29 VDC. This module provides 51W of output power at 5A continuous current. You can rely on its 20-millisecond hold-up time during brief input interruptions. An internal non-replaceable fuse guards against overcurrent faults. Additionally, the screw-type terminals accept wires from #12 to #22 AWG for flexible installation.
Technical Specifications
Input Voltage: 21 to 29 VDC (red), nominal 24VDC
Input Current: 5A (red) max continuous
Inrush Current: 30A for 3ms @ 29 VDC
Input Rating: 72.5W
Output Rating: 51W (red)
Fuse: Internal non-replaceable fuse
Hold-up Time: 20 milliseconds (red) @ 24VDC, maximum load
Wiring: Screw-type terminals, 0.3 mm² to 3.3 mm² (#12-22 AWG)
Ambient Temperature: T4 rating, 0°C to 51°C
Frequently Asked Questions (FAQ)
1. Can I use the 900P24-0501 with a 12VDC battery system?
No. The minimum input voltage is 21VDC. A 12VDC source will not start this power supply. Use a nominal 24VDC battery or power source instead.
2. What happens if the internal fuse blows?
The Honeywell 900P24-0501 has a non-replaceable internal fuse. When it blows, you must replace the entire power supply module.
3. How many I/O modules can this supply support?
This depends on your modules' total power draw. The 900P24-0501 provides 51W output. Add up the power consumption of all modules in the rack to stay within this limit.
4. Is the hold-up time long enough for controller tasks?
Yes. The 20ms hold-up time allows the CPU to complete write cycles and save critical data before voltage drops too low.
5. What wire size works best with the screw terminals?
The terminals accept #12 to #22 AWG. For a 5A load, #14 or #16 AWG copper wire is recommended to minimize voltage drop.
