Schneider Electric DBR116MS DBSeT 16-way 100 A board

DBR116MS: DBSeT 16-way surface mount distribution board

The DBR116MS is a Schneider Electric DBSeT low-voltage distribution board in painted white sheet steel, rated 100 A and arranged with one DIN rail with 16 modules of 18 mm. The datasheet lists the type as a distribution board for low-voltage electrical distribution, supplied as an enclosure with DIN rail and an identification label, for surface installation. Seven Star LLC supplies the DBR116MS in Oman and the GCC as an independent supplier based in Muscat.

How to read DBR116MS: DBR is the board series, 1 stands for the number of rows, 16 for the modules per row, and the final letters MF or MS follow the mounting style. The datasheet title for this reference reads “16 ways, 100A, 1 row, surface mount”, and we have followed the title wording rather than a published ordering table.

Surface mounting and what it means for DBR116MS

The surface version is fixed on the face of the wall, which makes it the practical choice for retrofit work, for masonry or partition walls that cannot be chased, and for service rooms where the board remains visible and accessible.

The datasheet gives the same outer dimensions of 425 x 295 x 124.9 mm for the this unit, so measure the wall opening or the wall face against those numbers and allow working room for the door to open. The plain flat door is fitted to a frame that carries the identification label, and the board earns its IP41 rating only when the door is closed and unused cable entries are covered.

Wiring and cable entry on DBR116MS

The datasheet lists a removable gland plate at top and bottom. That arrangement lets the installer drill or punch the plate away from the board and avoid metal swarf inside the live area. Use glands or conduit fittings that suit the cable and maintain the IP41 rating, and bond the metal enclosure and door to the protective earth according to the wiring rules.

Apply the identification label so each way can be traced, and keep a circuit schedule with the board. Unused ways should be covered with blanking pieces from the device range so that live parts are not accessible when the door is open.

Technical specifications of the DBR116MS

Where the DBR116MS is used in Oman and the GCC

Boards of this size appear in villas, apartments, offices, shops, small workshops and site cabins. In Oman and the GCC the main stress is heat: the datasheet gives an operating temperature of 50 °C, so a board in a hot plant room, a roof enclosure or a shaded corridor should be checked against that figure. Dust and humidity are other factors, and IP41 is for indoor use; outdoor or washdown locations call for a different enclosure type.

Sizing the DBR116MS: one row or two rows

The this unit has 16 modules. The single-row board is shallow in height and suits a small flat, an office or a utility closet. All four references share a width of 425 mm and the same 100 A rating, so the choice is about capacity and mounting style.

Selection checklist for DBR116MS

• Count the modules of the incomer, outgoers and RCDs and compare with 16.
• Check that the incomer is not above 100 A and the outgoers not above 63 A.
• Confirm the surface mounting suits the wall construction.
• Measure the opening or wall face against 425 x 295 x 124.9 mm.
• Check the ambient temperature against the 50 °C listed.
• Plan the entries on the top and bottom gland plates.
• Confirm the standards required for the project, as the datasheet lists IEC 61439-1 and 61439-3.

Protective devices that fit the DBR116MS

The board is rated 100 A and accepts, according to the datasheet, an isolator, a miniature circuit-breaker or an RCCB of up to 100 A as incomer. As outgoers it accepts miniature circuit-breakers or RCBOs of up to 63 A. With 16 modules available on the DIN rail, a typical arrangement is an incomer plus a mixture of final circuits, some with earth-leakage protection.

A module count is not a circuit count: a two-pole or four-pole device uses several modules, and the incoming device also occupies space. Add up the device widths before settling on the this unit. Keep the total load inside the 100 A rating and apply diversity as the design standard allows.

Documents and quotation

The official Schneider Electric datasheet for this unit is attached on this page. It covers the figures used above, and the packaging and environmental data pages that a project file usually needs. The sibling references with a different row count or mounting can be quoted at the same time.

To receive a quotation, send the part number this unit, the quantity, the delivery location and any required documents. Seven Star LLC is an independent supplier in Muscat and replies with availability and lead time for Oman and the GCC.