Siemens 6EP13331LD00 AC/DC Converter
Parameter Summary
| Specification | Value |
|---|---|
| Output Voltage | 24 V |
| Output Current | 6.2 A |
| Rated Power | 149 W |
| Efficiency | 86 % |
| Input Type | Universal (AC) |
| Mounting | Chassis Mount |
| Number of Outputs | 1 |
| Encapsulation | Bulk |
| IP Rating | IP20 |
| Adjustable Output | Yes |
| Operating Temperature | 10°C ~ 70°C (With Derating) |
| Approvals | CB, CE, CSA, cUL, cULus, cURus, UL |
| Applications | Hazardous Locations, Industrial, ITE (Commercial) |
Selection Trade-offs
The Siemens 6EP13331LD00 occupies the mid-range of the 6EP1 series SITOP power supply family. Consider the following when evaluating it against catalog alternatives:
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Power class vs. thermal headroom: At 149 W / 6.2 A, the primary part delivers more current than the 120 W alternatives (5 A class). If the load is continuously near 6 A, operating within the stated 10°C–70°C derating window becomes critical; alternates like 6EP13337CA00 offer a narrower 25°C–60°C window but no derating language, implying a more constrained thermal margin.
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Hazardous-location certifications vs. standard certifications: The primary carries full cURus and CB markings alongside cUL and CSA, covering North American and international hazardous-area use. The 6EP13347CA00 and 6EP13342AA010AB0 list only CE/CSA/UL approvals — acceptable for general industrial and commercial ITE but not hazardous locations.
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Enclosure style: The primary ships in bulk packaging with chassis-mount form factor. Box-packaged alternates (6EP13337CA00, 6EP13347CA00, 6EP13342AA010AB0) may suit applications requiring a contained, enclosed unit; bulk packaging implies the unit is typically installed inside a parent enclosure.
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Universal input vs. nominal ranges: The primary and most LD-series variants list "Universal Input" without specifying nominal AC voltage windows. The 6EP13331LB00 and 6EP13334BA00 explicitly state 93–132 VAC / 187–264 VAC ranges — useful when specifying for specific global mains conditions.
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Efficiency vs. package: The 6EP13347CA00 reaches 93.6% efficiency versus 86% for the primary — a meaningful difference in sustained high-load or enclosed panel thermal budgets, though that part lacks hazardous-location ratings and ships in box format only.
Catalog Comparison (In-Catalog Screening Only)
The following Siemens parts share the same brand, output voltage, and general family type. Peer comparison requires independent qualification — these are not OEM-endorsed interchangeable substitutes.
| MPN | Output Current | Power | Efficiency | Temp Range | Approvals |
|---|---|---|---|---|---|
| 6EP13331LD00 (primary) | 6.2 A | 149 W | 86 % | 10°C ~ 70°C (derating) | CB, CE, CSA, cUL, cULus, cURus, UL |
| 6EP13331LB00 | 5 A | 120 W | 86 % | 0°C ~ 60°C (derating) | CB, CE, CSA, cUL, cULus, UL |
| 6EP13341LD00 | 12.5 A | 300 W | 86 % | 10°C ~ 70°C (derating) | CB, CE, CSA, cUL, cULus, cURus, UL |
| 6EP13321LD00 | 3.1 A | 74 W | 86 % | 10°C ~ 70°C (derating) | CB, CE, CSA, cUL, cULus, cURus, UL |
Why the LD-series siblings are catalog-similar: Shared Siemens 6EP1 series lineage, identical 24 V output, 86% efficiency, IP20 rating, adjustable output feature, chassis-mount bulk packaging, and hazardous-locations / industrial / ITE application coverage. The primary part (6EP13331LD00) represents the highest current rating in this LD-series group, with the 6EP13341LD00 offering a step-up to 300 W / 12.5 A for higher-power branch designs.
Installation Notes
Chassis-mount packaging positions this unit for installation inside a parent enclosure rather than direct DIN rail mounting. The IP20 rating indicates no special protection against direct water ingress — plan for enclosure selection accordingly. The adjustable output allows fine-tuning of the 24 V setpoint within the unit's design range, which is useful for compensating voltage drop across distribution wiring in longer branch circuits. Operating temperature range is specified with a derating curve; for panel designers, thermal modeling of the parent enclosure is advisable when the load approaches the rated 6.2 A continuously.