Construction distribution board TD-S/FI 3x230V Mennekes Doktorvolt 9931 sockets DV-9931-F

Complete power supply on the construction site

The TD-S/FI distribution board is a ready-to-use distribution device designed for temporary power supply on construction sites, in workshops, and industrial plants. It is equipped with three Mennekes single-phase sockets (French system with grounding pin) with a voltage of 230 V and a rated current of 16 A, each protected by a separate C16 MCB with a breaking capacity of 10 kA. The setup is completed by a Type A RCCB (40 A / 30 mA), which eliminates the risk of electric shock from indirect contact - crucial in areas where workers operate under high-risk conditions.

The surface-mounted enclosure, housing 12 modules in a single row, is made of technopolymer - a material resistant to mechanical impact and atmospheric conditions. The front plate is RAL 7035 grey, and the rear is black. The door is made of polycarbonate, the seal from EPDM rubber, and the mounting screws from stainless steel - all to ensure the distribution board survives the rigors of field operation. The IP44 protection rating means the enclosure is sealed against objects >1 mm and water splashes from all directions.

Electrical equipment and wiring

The interior provides complete modular apparatus mounted on a TH35 rail. Each socket receives a separate circuit protected by a C16 single-pole MCB - a more practical solution than a common fuse, as a failure in one socket does not paralyze the others. The 1F / 4M / 12 mm² busbar with a set of end caps ensures proper distribution of phase and neutral. The wiring is made of H07V-K flexible cable with a cross-section of 2,5-4 mm² in colors compliant with the standard: blue (neutral), yellow-green (protective), and black (phase). The set also includes a PG-16 cable gland and CLIPFIX 35-5 end clips.

Standards, certificates, and operating conditions

The manufacturer has implemented a management system certified by TÜV SÜD, which translates into repeatable quality for every unit. The enclosure complies with the IEC 670 standard, the modular apparatus with the EN 61009-1 and EN 60898 series. The RCCB additionally holds VDE and European EFS/EFC certificates. The rated voltage is 230 V / 50 Hz AC, continuous current up to 40 A, and the short-circuit current does not exceed 10 kA. The diversity factor (RDF) at a level of 0,9 informs the designer how many devices can realistically be operated simultaneously relative to the connection power - useful information when selecting a generator or connection.

The distribution board is delivered as a complete plug-and-play solution: factory-made wiring, tested before shipment, eliminates assembly errors during the installation stage.