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Product Overview
The EMERSON 1X00797H01L is a high-capacity DC bulk power supply used with Emerson DeltaV and Ovation industrial control architectures. Emerson hardware references identify this part number as a 100–240 VAC to 24 VDC, 40 A bulk power supply, with a nominal 24 VDC output adjustable from 24 to 28 VDC. It is designed to provide DC power for control-system electronics and field devices where substantial cabinet power capacity is required. The documented continuous output is up to 40 A at 24 VDC, equivalent to approximately 960 W, while short-term output can reach 60 A for four seconds.
Technical Specifications — 1X00797H01L
| Parameter | Value |
|---|---|
| Product Model | 1X00797H01L |
| Manufacturer | Emerson Process Management |
| Product Type | AC-to-DC Bulk Power Supply |
| Typical System | DeltaV / Ovation |
| Input Voltage | 100–240 VAC |
| Output Voltage | 24 VDC nominal |
| Output Adjustment | 24–28 VDC |
| Continuous Output Current | 40 A maximum |
| Short-Term Output Current | 60 A for 4 seconds |
| Continuous Output Power | 960 W |
| Short-Term Output Power | 1,440 W |
| Mounting | Horizontal DIN rail |
| Operating Environment | Industrial control cabinet |
| Communication / Protocol | No network protocol; power-supply function |
| Cooling / Clearance | Requires specified cabinet ventilation clearances |
| Dimensions | Approx. 13 × 7 × 11 cm reported by distributor |
| Weight | Approx. 1.2 kg reported by distributor |
| Compliance | UL-listed model family; verify installation-specific approvals |
Emerson documentation specifies the 100–240 VAC input and 24–28 VDC adjustable output, while UL records list 1X00797H01L among Emerson Process Management power-supply models.
EMERSON 1X00797H01L
Key Features and Benefits — 1X00797H01L
- 24 VDC bulk power for industrial automation equipment.
- Up to 40 A continuous output supports substantial cabinet loads.
- Adjustable 24–28 VDC output accommodates system voltage requirements.
- 960 W continuous capacity provides a large power margin for distributed control and field-device loads.
- Designed for horizontal DIN-rail installation with defined thermal clearances.
- Short-term 60 A capability supports transient loading conditions.
- Suitable for MRO replacement of legacy Emerson power infrastructure.
Personally, I would pay close attention to the continuous load calculation, rather than sizing this unit simply from the nominal 24 V output. Emerson specifies different clearance requirements when the supply operates above 50% of its rated load, so cabinet ventilation deserves the same attention as electrical capacity.
Related Models
KJ1503X1-BB4 — Another Emerson DeltaV bulk power supply identified alongside 1X00797H01L for the 100–240 VAC to 24 VDC, 40 A class.
1X00781H01L — Related Emerson power-supply model appearing in the same UL certification family.
1X00924H01L — Another Emerson Process Management power-supply model listed under the same UL file.
KJ1501X1-BC3 — An Emerson DeltaV system power-supply reference used in DeltaV system power architecture.
Installation and Maintenance — 1X00797H01L
Install the power supply horizontally on the approved DIN rail and maintain the manufacturer-specified clearance around the unit. Emerson documentation calls for 40 mm top clearance, 20 mm bottom clearance, and 5 mm side clearance when permanently loaded above 50% of rated power; greater side clearance is recommended when an adjacent heat source is present.
Before replacement, verify the AC input circuit, DC distribution, grounding, load current, output adjustment, and cabinet ventilation. Inspect terminals for discoloration, loose conductors, overheating, or oxidation. After installation, measure the DC output under representative load and confirm that connected DeltaV/Ovation equipment starts normally.
Product Warranty — 1X00797H01L
Warranty coverage depends on supplier condition and sales terms. Confirm whether the unit is new, refurbished, or surplus, and request serial-number traceability, functional test results, inspection records, and the applicable warranty period.
The EMERSON 1X00797H01L should be treated as a high-capacity industrial DC power supply, with exact electrical ratings and cabinet thermal requirements verified before deployment.
