BP-103-20 and PS-103-20A

When replacing the power supply unit, the supply can receive three different designations: the application says BP-103-20, the catalog photo shows the PS-103-20A, and the characteristics are 400, 500 and 600 W. It is important for the buyer to choose the right source for the existing equipment. The first step is to link the actual marking, the applicable document, and the required load to order the agreed configuration and determine the amount of replacement in advance.
Where do different power values come from?
In BP-103 and BP-103-20 version 2.3Table 1, for BP-103-20, the rated power output is not more than 400 W and the consumption is not more than 500 W. These are different parameters. Power taken from the power grid is not converted entirely into available power for the connected hardware.
In Official Unicont catalog of 2016, page 28, position PS-103-20A has a nominal 500 W and 20 A. In that description, the output of 24 V is called unstabilized. Such a designation does have the manufacturer, but the catalog of another edition does not automatically establish the characteristics of a particular proposed instance.
| Source of information | What exactly it says. | How to use it when buying |
|---|---|---|
| BP-103-20, RE version 2.3 | Up to 400 W output, up to 500 W consumption | Verify the applicability of the RR to the quotation |
| PS-103-20A, catalog 2016 | Nominal 500 W, 20 A | Comparison of full designation and documents |
| Short line "maximum 600 W" | These primary documents are not confirmed. | Do not count on the selected load. |
| Photo of the hull | Shows the designation PS-103-20A | Not to be considered proof of the configuration of the shipped unit |
What to do before agreeing on a replacement
At the current unit keep the full designation, factory information and the existing passport. For the proposed equipment, request the same link to the documents. This allows the specialist to compare two specific positions. By itself, a similar case does not prove the coincidence of the scheme, and the difference in spellings is not yet the basis for declaring the devices physically different or incompatible.
The buyer is useful with a specific result of approval: what configuration is supplied, according to which manual it is connected and what restrictions are used in the selection. The quotation includes this data together with the set. Then the order passes between the supply, the installer and the receiving party without having to re-guess the meaning of the shortened line of the catalog.
Link power to real equipment
After determining the configuration, connected devices are considered. Specify the permissible range of their power supply and the envisaged joint modes. For equipment that requires a stabilized source, the 24V value does not in itself answer the question of applicability. Here, the source is selected according to the conditions of the entire line, preserving the right consumers and highlighting the necessary changes.
It is useful to describe the usual work and the most loaded agreed mode. If only the block changes in the circuit, tell us which lines and connecting elements are retained. If hardware is added at the same time, highlight the extension separately: it can change the power supply requirements. So the supplier evaluates the replacement task and the new load separately, and the final quotation remains clear.
Reserve and alarm are included in the checked composition
For the BP-103-20, the manual of version 2.3 separately describes backup power supply and dry contact alarm; the battery charge is not performed by this product. Therefore, while preserving the battery circuit, its remaining elements and the purpose of existing connections are specified. This information is needed to agree on a specific replacement, not to transfer all the functions of one variant of the family to another.
When transferring a task, show what should happen in the workplace when the main power supply disappears. Who notices the event, which devices continue to work, where the battery is provided? Answers transform the reserve from a general word into a verifiable function of the project. Connection and checks are carried out according to the applicable documentation by responsible specialists; a universal patterning on the photo is not assigned.
Compare quotation for the same result
Compare the confirmed configuration, allowable load, stored functions and necessary accessories. A larger digit in the short description does not make quotation preferable unless it is known which model it refers to. Conversely, the exact designation and clear scheme of work allow you to justify the purchase without necessarily replacing the entire power supply system.
Acceptance includes reconciliation of the delivered configuration and agreed documents, then checking the intended operation of the equipment. Save the final scheme for the next service. This is especially useful for several posts: the same name of the purchasing position does not mean the same load and kit at each facility.
Buy BP-103-20 with Confirmed Configuration
The main commodity is BP-103-20 in River Marine Pro. The price of the exact configuration and set is on request. Availability, condition, applicable manual, documents and composition are confirmed in the quotation. The catalogue image shows the case marked PS-103-20A; it helps to notice the question to the designation, but does not replace the confirmation of the shipped position.
For St. Petersburg, Astrakhan, Vladivostok, Almaty or Aktau, send the data of the installed unit, the list of equipment and the city of receipt. We agree on a replacement or a new set with the necessary accessories and total cost. The query can explicitly state that the BP-103-20 and PS-103-20A designations need to be reconciled: this is a useful technical task before purchase, not a formality after delivery.
- Marking of installed and proposed blocks
- Applicable guidance and assignment of each power digit
- Load, reserve, alarm and stored connections
- Confirmed configuration, set and check the result
This document does not apply to the proposed configuration. Clarify the editorial and confirmation of the supplier before calculating the replacement
Changes in equipment composition Separately assess the expansion of the load and the necessary changes
Scheme of approval of purchase. It does not declare the BP-103-20 and PS-103-20A universally interchangeable and does not specify the wiring.
Questions before buying
Why? БП-103-20 meet 400 and 500 W?
In the version manual 2.3 for БП-103-20 These are different parameters: 400 W power output and up to 500 W consumed. U PS-103-20A catalogue 2016 nominalize 500 W. For ordering, the marking of the proposed configuration and the applicable document are compared.
The PS-103-20A in the photo exactly replaces any BP-103-20?
One image and a similar name are not enough. The data of the existing and proposed blocks, the applicable documentation and the required functions are required. The two designations should also not be declared physically different in advance.
Can you expect a 600 W replacement from a short card?
In the primary documents considered, such a value for the selected position is not confirmed. Selection is made according to the agreed configuration, documentation and real load; the price of the exact set is confirmed by quotation.
The main product in our catalog

BP-103-20 / PS-103-20A - configuration to clarify
Price on requestConfiguration, applicable guide, current cost and exact set are confirmed quotation.
Request a quoteDocumentation: NPK Morsvyazvtomatika: BP-103, BP-103-20, CIUL.436131.001 RE, version 2.3, Inv. 1194; Unicont: Official Catalog 2016, PS-103-20A, printed page 28. These provisions relate to these editions; the applicability to the proposed configuration is specified separately.