Construction distribution board with TD-S/FI switch/RCD unit 32A 16A 3x230 sockets Mennekes Doktorvolt 2503 DV-2503-F

Mobile power for construction sites and beyond

The TD-S/FI construction distribution board from the Doktorvolt line is a complete solution for temporary electrical installations - on construction sites, in workshops, garages, and for roadworks. The manufacturer has equipped it with two Mennekes power sockets (400V - 32A and 16A) and three 230V single-phase sockets with a French-style grounding pin. This allows a single device to power both heavy industrial machinery as well as power tools or lighting.

The IP44 ingress protection rating protects the components from dust and water splashes - making it suitable for open areas even in unfavorable weather. The built-in 0-1 rotary switch enables quick disconnection of the entire power supply with a single lever movement.

Enclosure and construction

The body, with dimensions 360 × 250 × 185 mm, fits into a single row of modules (12 modules). The front plate is gray (RAL7035), which facilitates identification on the worksite - the rear plate remains black.

The enclosure materials were selected for durability in field conditions:

Element	Material
Body	technopolymer
Door	polycarbonate
Mounting screws	stainless steel
Gasket	EPDM rubber

The main busbar has a cross-section of 12 mm² and supports three phases with a complete set of covers. A PG-16 cable gland is included for the introduction of power cables.

Protection and apparatus

Protection against electric shock is provided by the SEZ40A/30mA/4P Type A RCD - eliminating the risk of indirect contact in all circuits simultaneously. Each socket additionally has its own overcurrent protection:

• 32A/400V power socket → three-phase C32 circuit breaker, 10 kA
• 16A/400V power socket → three-phase C16 circuit breaker, 10 kA
• 230V×3 sockets → two single-phase C16 circuit breakers, each 10 kA

The short-circuit strength of the entire device is ≤10 kA at an RDF0,7 of 0.7 - which means an allowable continuous load at 70% of the rated current.

Production takes place under a management system certified by TÜV SÜD ISO9001:2015, and the device complies with CE and IEC61439 standards regarding distribution boards for temporary installations.

Practical applications

This configuration is ideal anywhere simultaneous power for devices with different requirements is needed:

• Construction - concrete mixers, welders, pumps at a single workstation
• Roadworks - work lighting + hand power tools without dragging extension cords over long distances
• Outdoor events and green areas - sound systems, stage lighting, catering points
• Workshops and industrial halls - emergency power for service zones

Ready to connect - simply run the power cable to the PG-16 gland and connect it to the main busbar.