Site distribution board with meter 3-phase Siemens pTD-S 32A 2x230V Mennekes Schuko sockets Doktorvolt 4791 DV-4791-D

Construction distribution board with energy meter and power sockets

The PREMIUM pTD-S series electrical distribution board is a complete solution for power distribution on construction sites, in workshops, industrial plants, as well as during roadworks and outdoor events. The device integrates a three-phase SIEMENS SENTRON PAC1600 energy meter with MID certification, two single-phase Schuko sockets, and a five-pole power socket into a single enclosure – all ready for connection without additional assembly work.

Enclosure and operating conditions

The technopolymer enclosure is characterized by increased resistance to mechanical damage and the atmospheric conditions found on open construction sites. The gray front plate (RAL 7035) and black rear plate ensure an aesthetic appearance combined with structural durability. The polycarbonate door is resistant to impacts and UV radiation. The EPDM rubber seal effectively protects the interior from moisture and dust (enclosure protection rating IP65). Stainless steel mounting screws guarantee many years of operation without corrosion. A PG-16 cable gland is included, allowing for the entry of power cables.

Enclosure dimensions of 360 × ~250 × 125 mm allow for comfortable surface mounting even in limited working spaces. The rated voltage of the enclosure is 1000 V, and the TH/TS 35 rail is used to mount modular devices on the support.

Sockets and protective devices

The distribution board is equipped with two Mennekes Typ 11011 single-phase sockets in the German Schuko system (Type F), each with a voltage of 230 V and a current of 16 A. Their IP54 ingress protection rating allows for safe use even in conditions of increased humidity – they work well both in closed workshops and outdoors with limited water spray.

The Mennekes Typ 3451 power socket provides a three-phase voltage of 400 V at a current of 32 A (5 poles). The IP44 protection rating protects against objects >1 mm and splashing water – sufficient for most construction applications.

Safety is ensured by SIEMENS circuit breakers: two single-pole C16A / 10 kA breakers protecting the Schuko sockets and one 3-pole C32A / 6 kA breaker protecting the power socket. An RDF coefficient of 0.8 confirms the distribution board's ability for continuous operation at a load of up to approximately 80% of the rated current.

Energy meter and wiring

The MID-class three-phase SIEMENS SENTRON PAC1600 meter enables precise measurement of electrical energy consumption – which is crucial for settlements with energy suppliers or contractors on the construction site (mounted on the TH/TS35 rail inside the distribution board).

The wiring is made of H07V-K single-core wires with cross-sections of 2,5 mm² and 4 mm² in yellow-green (protective), blue (neutral), and black (phases) colors – all cables comply with CPR, RoHS, and CE standards.

Standards, certificates, and warranty

The distribution board meets the requirements of the DIN 61439-3 standard, which specifies the production and testing conditions for distribution boards intended for unskilled users – meaning full safety of use without specialized handling. CE certificates confirm the compliance of both the distribution board itself and the installed modular devices (CEBEC, IMQ, VDE). The manufacturer provides a 5-year warranty, and the entire production process is conducted under a management system certified by TÜV SÜD – ensuring repeatable quality and transparent information flow at every stage of manufacturing.