Packing and terminals
Ask whether the quote includes spare terminal covers, a rail adapter or only the module. A missing adapter changes both fit and freight weight.
Quotation matching
24v dc power supply price only after the scope matches
A 24v dc power supply price moves with current, width, alarms and freight. LinkScope Sourcing 50 asks factories to price one written configuration. The desk does not keep a public rate card.
- Lock 24 V and the continuous current.
- Lock rail width and cooling.
- Lock quantity, currency and destination.
- Then compare answers.
Lifecycle questions that change a 24 V quotation
Treat the matrix as a buyer worksheet. Each column is something the proposed supplier should answer for the exact model. Empty cells stay open. They are not filled with a series-level assumption.
| Stage | Ask for | Reject as a substitute |
|---|---|---|
| Definition | Output 24 V, current, ripple and hold-up at a named load and ambient | A nominal 24 V label with no load condition |
| Fit | TS35 width, depth, terminal type and required side clearance | A rack unit height when the install is a DIN rail |
| Evidence | Current datasheet, wiring diagram and applicable safety file for that model | A family brochure or a higher-wattage sibling |
| Commercial | Unit or order basis, currency, Incoterm, lead time basis and exclusions | A bare module price compared with a delivered package |
| Acceptance | Who checks polarity, alarm contact and incoming inspection | A verbal statement that the lot was tested |
If the load includes powered switches, separate the Power over Ethernet budget from the DIN-rail current. The module rating does not describe endpoint wattage. If the buyer needs output checks, ask whether calibration traceability is available for the quoted test method, and keep that document tied to the model.
Condition belongs in the same matrix. New builds and refurbished units can both be offered. Record warranty length, cosmetic limits and which tests were repeated. A 24 V, 10 A module on a 35 mm rail, derated at 50 °C, with 20 ms hold-up at 115 V or 230 V, is a different line from a 48 V, 5 A shelf. Request the IEC 62368-1 file for the quoted model. Comparing those prices without the condition line hides the real scope.
Standards references, including telecom infrastructure lists maintained outside the United States, only suggest attributes such as load, cooling and environment. They do not certify the quoted supply. When an FCC file or NRTL mark is relevant, request it for the exact model and note the revision.
Delivery questions that should stay out of the unit price
Site constraints
Name the US destination, any lift-gate need and whether the cabinet is already energized. Those facts change the route. They are not a reason to imply stock on this site.
Alarm and spares
If a DC OK relay must match an existing alarm pair, say so before award. A spare module percentage is a buyer choice, not a number this desk publishes.
Use the custom ac-dc inquiry rows when the input is AC, and send the aligned scope through the RFQ form. The procurement note on the blog brief lists the same evidence idea in checklist form.
Compare 24 V answers on one sheet
Paste the locked current, width, quantity, destination and timing. Optional budget can name a currency and a per-unit or whole-order basis. Supplier preference is the buyer choice among high-end, mid-range, budget-friendly or undecided.