Solutions for photovoltaics
Flexible components for the PV system
In an increasingly sustainability-oriented world, demand for photovoltaics is continuously rising. For the installation of a PV system, in addition to the solar modules, you also need other components that ensure the safe and smooth operation of the Photovoltaics system.
Whether inverters, Small distribution boards or terminal block enclosures for secure power distribution, a backup box or surge protection for extra safety, or a Wallbox for optimal further use of solar energy, Spelsberg offers a wide range of components for the PV system.
Go directly here to our product solutions for Photovoltaics.
Our ready-to-connect product solutions for installing a PV system guarantee safe and reliable operation of Photovoltaic systems. They are quick and easy to install, durable and low-maintenance, offer maximum flexibility and tested brand quality.
GWS inverter collector
safe isolation of individual inverters or system parts for maintenance or repair work
separate enclosure assemblies based on the GTi system can be quickly and flexibly combined and expanded
in three power classes 70 kVA, 140 kVA and 220 kVA
GNA Mains and system protection
monitors voltage and frequency in the supply grid, disconnects the generation system if necessary and reconnects it
separate enclosure assemblies based on the GTi system can be combined and expanded quickly and flexibly
for generation systems from 30 to 135 kW
GEOS as generator junction enclosure
secure and tidy connection inside the enclosure for outdoor PV installations
resistant to all weather conditions with IP66/67/69 and IK09
flexible machining and customization options of the enclosure to suit the specific application
AK small distribution board
versatile integration into small and medium PV installations
separate protection for multiple inverters and combined feed to the meter distribution
integrated ventilation system to prevent condensate water
GTi-ISO insulated distribution box
according to customer-specific requirements
various possibilities to extend or build ISO switchgear
Ready-to-connect emergency power boxes
act as backup boxes during power outages in the public grid for inverters with a corresponding backup output
use of PV power for critical loads
ready-to-connect socket distribution boxes with integrated residual current circuit breakers for personal protection
Spelsberg Wallbox Smart Pro
charging the EV with available PV surplus using external meter measurement
various communication interfaces (Modbus TCP, SMA SEMP, EEBus) to connect to energy management systems
automatic phase shutdown in conjunction with SMA SEMP
A | PV systems for use on open spaces
- GEOS generator junction enclosure
- Inverter collectors
three power classes: 70, 140 and 220 kVA - Mains and system protection
according to VDE-AR-N 4105 and EN 61439-2
B | PV systems for commercial buildings
- GEOS generator junction enclosure
- Inverter collectors
three power classes: 70, 140 and 220 kVA - Mains and system protection
according to VDE-AR-N 4105 and EN 61439-2
C | Custom switchgear, disconnection points and distributions
- GTi ISO insulated distribution box
according to customer-specific requirements - AK small distribution board
as standard, flange or plus variant
D | PV systems up to 30 kVA
- Inverter collector with AK small distribution board
as standard, flange or plus variant
E | PV systems for residential buildings
- AK small distribution board
as standard, flange or plus variant - Ready-to-connect emergency power boxes
for inverters with single- or three-phase AC output
F | E-Mobility
- Spelsberg Wallbox Smart Pro
with intelligent interfaces and MID meter for grid-friendly control, connection to energy management systems, for PV surplus charging or for billing purposes
Photovoltaics per DIN VDE 0100-712
Since the periphery of photovoltaics systems is mostly installed outdoors, the following important protection requirements apply to the installation of a PV system:
- External influences such as wind, ice formation, temperature and solar radiation must be taken into account.
- It must be ensured that heat generated by direct sunlight is dissipated.
- All junction boxes (PV generator junction box and PV sub-generator junction box) must be equipped with a warning indicating that live parts in the junction boxes may remain energized after disconnection from the PV inverter.
The requirements for shutting down the PV system for maintenance work are contained in VDE 0100-712, section 537.
Particularly suitable for these specific requirements: RK-PV, AK Air Small distribution board, AKi, GTi, TK-PC, TG-PC and GEOS.
Furthermore, ventilation and/or drainage is mandatory!
VDE-AR-N 4105 Generation systems on low-voltage network
The VDE-AR-N 4105 "Generation systems on the low-voltage network – Technical minimum requirements for connection and parallel operation of generation systems on the low-voltage network" regulates the connection of generation systems such as PV systems to the low-voltage network. The standard serves installers and network operators as a planning basis and decision aid. According to the application rules VDE-AR-N 4105:2018-11, a network and plant protection for solar systems is required and applies to all generation systems from 30 kW to 135 kW. Spelsberg's network and plant protection is intended to solve two fundamental challenges when feeding decentralized generated energy into the low-voltage network:
- Compliance with voltage and frequency limits in the power grid
- The shutdown of islanded networks in the event of maintenance work by a qualified electrician
According to VDE 4105, this is a "type-tested protective device with proof of conformity" that constantly monitors the voltage and frequency of the supply grid to ensure they remain within the specified tolerances.
