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900P1-0301 | Honeywell | 120/240VAC Power Supply
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- Part Number: 900P1-0301
- Brand: Honeywell
- Type: Power Supply Board
- Dimensions: 3.7×14×13.6cm
- Country of Origin: USA
- Barcode: 8537101190
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Additional Specifications
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Product Description
Honeywell 900P1-0301 120/240 VAC Power Supply
Configured for regulated DC output delivery in HC900 control architectures, the Honeywell 900P1-0301 (900P1-0301 power supply) provides direct physical and electrical execution of input conversion and module powering. The unit conditions wide‑range AC input, manages inrush behavior, and maintains stable output for controller and I/O backplane loads.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 900P1-0301 |
| Brand | Honeywell |
| Origin | Not specified |
| Weight | 0.82 kg (shipping weight 2 kg) |
| Dimensions | 137 mm H × 72.6 mm W (5.4 in × 2.86 in) |
| Operating Temp | Not specified |
| Power Consumption | Input rating 130 VA |
| Input Voltage | 90 to 264 V AC, 47 to 63 Hz |
| Input Current | 1.4 A max continuous |
| Inrush Current | 40 A peak‑to‑peak for 120 ms at 240 V AC |
| Output Rating | 58 W |
| Hold‑Up Time | 20 ms @ 115 V AC, 60 Hz (maximum load) |
| Fuse | Internal non‑replaceable fuse |
| Wiring | Screw terminals, 0.3 mm² to 3.3 mm² (#12–22 AWG) |
| Test Jacks | 5 V DC, 24 V DC |
4-20 mA HART Loop Protocol Considerations
Honeywell process‑control hardware frequently interfaces with mixed analog signaling, and the 900P1-0301 power supply maintains stable DC output conditions required for loop‑powered 4-20 mA HART devices. The regulated output minimizes ripple that could interfere with superimposed HART frequencies. Channel‑to‑channel isolation within downstream HC900 modules is preserved when this supply maintains proper grounding and wiring separation. Cold junction compensation (CJC) circuits in temperature modules also depend on stable supply voltage to maintain reference accuracy.
Frequently Asked Questions
Q: Does the 900P1-0301 support hot‑swap replacement during operation? A: The module is not designed for hot‑swap. Power must be removed from the HC900 chassis before insertion or removal to avoid backplane disturbance.
Q: How does inrush current affect upstream protection devices? A: The 40 A peak inrush for 120 ms may require coordination with upstream breakers or fuses to prevent nuisance tripping during startup.
Q: Are firmware updates relevant to this power supply? A: The unit contains no user‑upgradeable firmware. Compatibility is determined solely by electrical characteristics and HC900 backplane requirements.
Field Installation Guidelines
Proper installation requires maintaining tight screw‑terminal engagement within the specified wire gauge range. Shielded cable grounds should be bonded at a single point to avoid circulating currents. AC input wiring must be routed separately from low‑voltage DC output conductors to reduce electromagnetic coupling. When mounting in a panel, ensure adequate airflow around the module to prevent thermal buildup. Test jacks (5 V DC and 24 V DC) should be used only for measurement and not for powering external loads.
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