AI-generated conceptual OEM engineering review of three anonymous AC-DC power-module formats. It does not depict a specific WEHO model, WEHO factory, customer installation, or test result.
Choose an AC DC charger power supply by defining the battery manufacturer's charge envelope, the load that must remain online, the required recovery time, the input source, and the available enclosure space. Then compare only the functions and interfaces documented for the exact model revision. Treat the WEHO PSC, SC, and AD families as an evidence-based shortlist, not as interchangeable chargers or final system approval.
An OEM buyer is rarely choosing a box in isolation. The purchase affects the battery path, the supported load, the cabinet, service access, documentation, and the way a system behaves when AC power disappears and returns. A useful family comparison therefore starts with the system boundary, not with a family name or a nominal output alone.
This guide has one focused job: help purchasing and engineering decide which of three current WEHO AC/DC charger power-supply families deserves a model-specific RFQ. It does not assign any family to a battery chemistry, invent a charging algorithm, or replace the battery manufacturer's instructions and the end-equipment engineer's review.
What should an OEM define before comparing charger power-supply families?
Start with the battery documentation. Record the manufacturer, chemistry, pack arrangement, permitted charge profile, voltage window, current limit, temperature conditions, termination or float method, and any required battery-side controller. If those inputs are missing, the correct purchasing action is to pause the model choice and request them. A familiar battery label is not a substitute for the current pack instructions.
Next, draw the actual power paths. State which loads remain online during normal operation, which loads must run from the battery, the required backup interval, and the required recovery time after an outage. Keep the equipment-load requirement separate from the available battery-charge current. This prevents a quote from silently treating one number as if it covered both tasks.
Then define the integration boundary: AC or DC input source, cabinet dimensions, mounting plane, airflow, wiring access, grounding approach, local indication needs, service procedure, and destination market. Do not ask the supplier to infer these conditions from the equipment name. Put unknowns in an open-issues column so that a lower price cannot hide a narrower assumption.
A practical first-pass RFQ contains these inputs:
- battery-manufacturer charge limits and the current document revision;
- normal, outage, restart, and battery-recovery operating states;
- load demand for each state and the project engineer's margin rule;
- input-source range and any manual input-selection constraint;
- usable enclosure volume, orientation, ventilation, and service clearance;
- required terminals, local indicators, reset behavior, and remote signals;
- model-specific drawings and market documentation to be returned;
- sample identity, system-level checks, decision owner, and change-notification route.
How do the current PSC, SC, and AD pages compare?
The table below is a page-evidence comparison, not a universal application matrix. Each value is taken from the current sealed WEHO product page, and the buyer should request the exact quotation revision before using it in a design record.
| Family starting point | Current published-page evidence | Best first question for the RFQ | Evidence boundary |
|---|---|---|---|
| PSC-150 | منبع تغذیه سوئیچینگ PSC-150 12 ولت 24 ولت AC به Dc 3 سال گارانتی is the current identity for models PSC-150-12 and PSC-150-24. The table lists main voltages of 13.8 V and 27.6 V, main currents of 7.5 A and 4 A, separate charge-current entries of 3 A and 1.5 A, an input range of 90–264 VAC or 135–370 VDC, and a 159 × 97 × 30 mm enclosure. | Does the exact PSC revision support the buyer's simultaneous load and battery-recovery case within the planned enclosure? | The page contains conflicting introductory values; use the cited table values only as RFQ inputs pending exact-revision confirmation. |
| SC-120 | منبع تغذیه تک خروجی یو پی اس 120 واتی AC به DC برای شارژ باتری is the current identity for SC-120-12 and SC-120-24. The table lists 13.8 V / 13.4 V with 8 A / 0.5 A for one model, 27.6 V / 26.5 V with 4 A / 0.3 A for the other, switch-selected 90–132 VAC or 180–264 VAC input, and a 159 × 97 × 38 mm enclosure. | Does the site-referenced input-selection method, terminal layout, and local indication match the cabinet and service plan? | A separate feature paragraph shows different AC ranges, so the supplier must return the current exact-model range and selection method. |
| AD-155 | UPS 155w AC to DC single output power supply with battery charger is the current identity for AD-155A and AD-155B. The table lists 13.8 V / 13.3 V with 10.5 A / 0.5 A for AD-155A, 27.6 V / 27.1 V with 5 A / 0.5 A for AD-155B, 85–264 VAC or 124–370 VDC input, and a 199 × 110 × 50 mm enclosure. | Does the larger chassis and documented terminal/reset arrangement fit the OEM's mechanical and service requirements? | The page mentions optional alarm signals but does not define the option or electrical interface; keep it as a quotation question, not a standard feature. |
Deterministic selection workflow based on the cited product identities, documented interfaces, and evidence limits.
The comparison deliberately avoids declaring a “winner.” The smallest enclosure is not automatically the best choice, a wider published input range does not answer every installation question, and a page feature is not a substitute for a system decision. The correct result of this table is a shorter, better-defined RFQ.
Which family deserves the first model-specific review?
When is PSC-150 the logical first page to review?
PSC-150 is the first page to review when the OEM wants a low-profile PSC-family candidate and the published main/charge-current rows appear relevant to the stated load and recovery task. The page also lists low-battery cut-off, online float charging, automatic AC/battery switching, and battery cold-start functions.
That is still only the start of the review. The public page has a numerical conflict between its introduction and its specification table. Do not carry the conflicting introductory power, current, or length values into an RFQ. Ask WEHO to identify the current model revision and return a consistent document set before engineering relies on any number.
When is SC-120 the better integration question?
SC-120 becomes a useful first review when local cabinet service and visible status are central to the buyer's task. The current mechanical drawing identifies AC/L, AC/N, FG, DC-output terminals, battery leads, and three local indicators described for DC output, AC input, and battery charge.
This gives purchasing concrete questions to place in the response matrix: which exact drawing revision applies, how the input range is selected, what each indicator means for the quoted model, and what service steps belong in the end-equipment procedure. The drawing does not establish a remote relay, fieldbus, or external alarm protocol, so none should be assumed.
Real WEHO SC-120 product asset from the current product catalog, converted to the delivery file without generative changes.
When does AD-155 merit the first shortlist position?
AD-155 merits the first review when the buyer can accept its larger published enclosure and wants to examine its documented terminal and reset arrangement. The current drawing identifies AC input, protective-earth, battery, common, DC-output, and CN1 reset-interface labels.
The page's reference to optional alarm signals should be handled as an option request. The quotation should state whether an option exists for the exact model, what its interface is, and which drawing defines it. Until that evidence is returned, an OEM should not design around a particular contact, pinout, or communications method.
How should buyers run a two-pass selection instead of forcing an early winner?
Pass one is a disqualification screen. Remove any family that cannot be reconciled with the battery manufacturer's limits, required load path, input source, usable space, or mandatory document scope. Record the evidence reference and decision owner beside every result. “Looks suitable” is not a result; “open pending current drawing” is.
Pass two is a model-specific verification. Send the remaining family or families to WEHO with the same response matrix. Require an exact model, current document revision, assumptions, exceptions, unanswered items, and a clear distinction between standard and optional functions. This makes quotations comparable even when the supplier recommends a different starting model.
| Decision gate | Pass condition | Stop or return condition | Owner |
|---|---|---|---|
| Battery envelope | Exact pack instructions and charge limits are attached | Chemistry, limits, or control method is unknown | Battery-system engineer |
| Load and recovery | Normal, outage, restart, and recovery states are defined | Load and charge path are merged into one unsupported assumption | Electrical engineer |
| Input and enclosure | Source and usable installation boundary are documented | Input selection, clearance, airflow, or access is unresolved | Electrical and mechanical engineering |
| Family evidence | Product identity and current model documents are returned | Page wording conflicts or the exact revision is unclear | Supplier quality and WEHO |
| Sample review | Sample identity matches the quotation and the system plan | Model, document, or acceptance record does not match | Test owner and purchasing |
The output of pass two should be either a controlled model shortlist or a clear blocked list. Both are valuable. A blocked decision made before the sample stage costs less than discovering the same missing input after procurement has treated a family page as final evidence.
What must remain open in the OEM quotation?
Some questions cannot be answered responsibly from the current public pages. Keep them visible rather than converting them into confident marketing copy:
- supported battery chemistry, pack arrangement, charge profile, and control method;
- simultaneous load and battery-charge limits for the exact model;
- current terminal, indicator, reset, and cold-start definitions;
- enclosure temperature, airflow, spacing, and application-specific thermal limits;
- exact market documents and their model scope;
- the meaning and electrical definition of any optional alarm interface;
- commercial terms, document revision control, and change notification;
- resolution of the PSC-150 and SC-120 page conflicts noted above.
These items do not make the shortlist unusable. They define the work that turns a public-page shortlist into a supportable purchase. A supplier who returns clear exceptions and open questions is giving purchasing more decision value than one who answers every row with an unexplained “yes.”
How should the sample stage use the same evidence matrix?
Before samples arrive, name the sample model, document set, equipment configuration, operating states, observation method, acceptance criteria, responsible reviewers, and record location. Confirm that the received unit and its documents match the quotation before the evaluation starts.
Use qualified personnel and the organization's established electrical-safety process. This guide intentionally provides no wiring sequence, terminal torque, battery connection procedure, or universal bench setup. Those instructions must come from the current exact-model documentation, the battery documentation, and the responsible end-equipment engineer.
If a result differs from expectation, first check model identity, document revision, test configuration, and RFQ assumptions. Do not rescue an unsuitable family by quietly changing the requirement. Return the decision to its owner, update the matrix, and keep the sample outcome attached to the same sourcing record.
Where should this guide link within the WEHO site?
Buyers who need to browse the wider family can use the WEHO AC/DC charger power-supply catalog. Readers who are still separating a general supply task from a charging task can first read power supplies versus battery chargers. Those pages serve broader discovery and education; this page serves the narrower OEM family-shortlisting task.
The new guide should also receive contextual links from those two established pages. That creates a clean path from category discovery, to task definition, to a model-specific RFQ without creating another page for the same buyer question.
سوالات متداول
Can I select a WEHO family from nominal battery voltage alone?
No. Nominal voltage does not define the battery manufacturer's charge limits, the load that must remain online, the recovery target, the input source, or the enclosure boundary. Use those inputs to screen a family, then ask for exact-model evidence.
Are PSC, SC, and AD interchangeable charger power supplies?
No. Their current pages show different model structures, published electrical rows, enclosure sizes, and local interfaces. Treat them as three shortlist routes that must answer the same RFQ, not as automatic substitutes.
Does a published charge-current row prove battery compatibility?
No. A current row does not define the complete pack chemistry, charge profile, control method, temperature limits, or termination requirements. Obtain the battery manufacturer's instructions and have the exact power module reviewed against them.
Which family is smallest in the current published comparison?
The current tables list PSC-150 at 159 × 97 × 30 mm, SC-120 at 159 × 97 × 38 mm, and AD-155 at 199 × 110 × 50 mm, so PSC-150 has the lowest listed height in this three-page comparison. Verify the exact revision and usable cabinet space before making the mechanical decision.
What should I send WEHO to receive a useful quotation?
Send the battery document revision, operating-state load record, required backup and recovery targets, input source, enclosure boundary, interface needs, destination market, document checklist, sample plan, and open questions. Ask WEHO to return one exact model with assumptions, exceptions, and current evidence.
Build the shortlist, then request an exact-model answer
Use this guide to decide which family deserves engineering time, not to bypass engineering. Put the PSC, SC, or AD candidate into a common response matrix, keep every uncertainty visible, and make the supplier return an exact model and document revision.
When the matrix is ready, contact WEHO with the shortlisted family, battery documentation, load states, enclosure boundary, and evidence requests. A precise inquiry gives purchasing a comparable quotation and gives engineering a traceable starting point for system review.
