Letzte Aktualisierung: 27. September 2026
schnelle Antwort: An LRS enclosed power supply is a candidate for a protected OEM equipment enclosure when its exact output variant, AC-input range, temperature derating, mechanical envelope, and mounting method match the project. For a clearly illustrative 12V inspection-cell load of 7.0A (84W), the photographed WEHO LRS-150-12 is one model to evaluate: the current LRS-150 specification lists 12V at up to 12.5A and a 159 × 97 × 30 mm chassis. That example does not make LRS-150 the automatic choice; compare smaller variants and confirm the ordered unit’s nameplate and revision before purchase.
OEM buyers often start with a wattage label. A more reliable purchase brief starts with the voltage at every load, simultaneous current, the plant’s AC supply, enclosure temperature, available mounting space, and the tests required at startup. The WEHO LRS series catalog covers multiple powers and output variants; those ratings must not be blended into one universal LRS specification.
This revision of the original WEHO LRS article keeps the useful overview but separates series-level guidance from one photographed LRS-150-12 example. Its four rendered images illustrate product identity, two distinct applications, and physical fit. They are not a substitute for the ordered model’s terminal drawing or a commissioned installation photograph.
Define the OEM load before choosing an LRS model
Consider an inspection station with 12V camera modules, a compatible 12V ring light, sensors, and a small interface controller. The numbers below are an illustrative engineering worksheet, not an actual customer BOM or measured WEHO installation.
| 12V branch | Illustrative simultaneous current | Power at 12V |
|---|---|---|
| Camera modules | 2.0A | 24W |
| 12V inspection light | 3.0A | 36W |
| Interface controller | 1.0A | 12W |
| Sensors and relay state | 1.0A | 12W |
| Wettbewerb Total | 7.0A | 84W |
Before naming a power supply, verify that each device really accepts 12V, document the highest simultaneous operating state, and measure startup and fault behavior. A camera or light module sold for 24V cannot be moved onto this bus merely to simplify procurement. Long 12V cable runs may also require a voltage-drop calculation at the farthest device.
The current enterprise-drive LRS-150 sheet lists LRS-150-12 at 12V/12.5A. The example’s 7A steady-state current is below that listed output point, but the nominal 5.5A difference is not a guaranteed reserve at every enclosure temperature or startup condition. An LRS-120-12 or another smaller variant might also be suitable after its own specification and derating are checked. Choose the smallest defensible model for the complete duty profile, not the most familiar catalog photograph.
Keep the exact variant and input evidence together
The verified source photograph used to control these renderings has a visible LRS-150-12 label. It is not evidence for an LRS-150-24 or for every model in the series. The current enterprise-drive LRS-150 sheet lists output variants at 12V, 15V, 24V, and 48V; the output suffix must match the actual load.
This illustrative close-up shows the source-controlled LRS-150-12 inside an open parcel-sortation control cabinet, with the warehouse conveyor and barcode scanner providing application context. The model label, seven-position L/N/protective-earth/-V/-V/+V/+V terminal order and 159 × 97 × 30 mm proportions are checked against the source photograph and specification. The neighboring two-pole breaker and mounting rail provide scale references; the supply is fastened to the backplate, not clipped to the rail.
The older live article describes a 115V/230V selector for higher-power LRS models, while the current LRS-150 sheet gives a broader AC input range and the photographed nameplate prints another range. These sources do not cleanly agree. This revision therefore does not instruct a buyer to assume that every LRS-150 unit is auto-ranging or to move a selector. For an illustrative 230VAC site, confirm that the ordered label and the current revision both permit 230VAC, inspect the actual hardware for a selector, and follow the supplied installation instructions before energizing. For any other mains system, repeat the check rather than extrapolating from the example.
The same rule applies to efficiency, no-load consumption, protection, temperature, and certifications: read the row and revision for the exact ordered model. A series marketing statement is not a universal rating.
Check mounting, airflow, and the 159 × 97 × 30 mm chassis
The current LRS-150 mechanical drawing identifies 159 mm length, 97 mm width, and 30 mm case height. The product-context rendering below is constrained by the 159:97 plan ratio. The height is shown separately; none of these three numbers includes terminal working space, cable bend, neighboring parts, or airflow clearance.
Mount the unit using the intended holes and a suitable fastener/backplate design. Do not use adhesive tape or hook-and-loop material as the sole mechanical attachment for an exposed mains power supply. Keep the perforated metal case unobstructed and assess actual enclosure temperature near the unit, not just room temperature. Protect the terminals from inadvertent contact and coordinate upstream protection and the protective-earth arrangement with the ordered drawing and applicable installation rules.
For this series, a low-profile enclosure does not mean every model has the same footprint or cooling arrangement. Check each candidate’s mechanical drawing. A 30 mm case height, for example, does not establish that a sealed 30 mm cavity has adequate airflow.
Commission the real machine as a system
The packaging and warehouse scenes show protected automation contexts where the LRS-150-12 form factor could be evaluated. They do not claim a completed customer installation or prove that terminal assignments, protection, or thermal performance have been verified on site.
At commissioning, record the actual AC input, DC voltage at the power supply and farthest load, simultaneous running current, startup peak, enclosure temperature, and response to a downstream fault. Use the ordered model’s terminal map and torque requirements. Do not pass conductors through ventilation openings or treat multiple output terminals as independent current-limited channels unless the specification explicitly says so.
For procurement, document the exact suffix, revision, required approvals, volume, test plan, and permitted substitutions. This avoids a common mistake: replacing a 12V unit with a visually similar 24V or different-input variant because both are called “LRS-150.”
Wichtige Erkenntnisse
- Select an LRS enclosed power supply from the actual load voltage, simultaneous current, input range, thermal derating, and enclosure conditions.
- The pictured unit is LRS-150-12; the current sheet lists 12V/12.5A and a 159 × 97 × 30 mm chassis. Do not relabel it as a 24V model.
- The 84W inspection-cell load is an illustrative worksheet, not a measured project; compare other suitable LRS variants before specifying one.
- Conflicting input statements in old content, the current sheet, and the pictured label require ordered-revision verification.
- Use engineered mechanical fixing, protected terminals, proper earthing, and a documented commissioning test; do not use adhesive tape as the mounting method.
Abschluss
The LRS series can serve many OEM equipment designs, but a successful specification is model-specific. For a 12V inspection-cell project, the photographed LRS-150-12 provides a concrete comparison point, not an automatic purchase recommendation. Give the supplier a verified load schedule, input-voltage envelope, thermal and mechanical constraints, and the required test/approval list; then confirm the exact model and revision before release.
Product and specification sources
- WEHO LRS series catalog
- WEHO LRS-150 specification (public comparison; current enterprise-drive revision governs the worked dimensions and electrical point)
- WEHO product guide
Häufig gestellte Fragen
Is every LRS enclosed power supply 30 mm high?
No. The 30 mm figure is the current LRS-150 sheet’s case height for this worked example; compare the exact mechanical drawing for every candidate.
Can LRS-150-12 run a 12V, 7A OEM load?
The current sheet lists 12V/12.5A, so a 7A steady-state example is below that listed point. Final selection still needs startup, enclosure temperature, derating and protection checks; a smaller variant may also work.
Does the pictured LRS-150 prove a 24V model is installed?
No. The original enterprise-drive photograph visibly says LRS-150-12 and is only used as a 12V variant example.
Does every LRS-150 have the same AC input behavior?
Do not assume so from the series name. Existing WEHO sources differ, so check the exact ordered nameplate, revision and any selector before energizing.
Can the unit be mounted with tape or hook-and-loop material?
No. Use the specified mechanical mounting holes with a suitable backplate and fasteners, then verify airflow and access protection.
