In the power range from 280kWp to 1190kWp, Bonfiglioli offers solar inverters of the RPS450-TL range without internal transformers. This is the most cost and yield optimal solution for photovoltaic systems of moderate to large output.
The modular construction allows a perfect adjustment of the inverter to the respective solar generator and increases the availability of the system. The right size of inverter can be selected from the pre-defined and cost-optimised combinations. Overall systems of up to 1.19 MWp can be flexibly constructed from individual inverter modules, with nominal outputs of 140kWp and 170kWp. The RPS450TL solar inverters are designed for IT networks and can be attached directly to the low-voltage connections of the medium-voltage transformers. Network connection modules serve as an interface between the inverter modules. Additional low-voltage distribution boards are therefore not necessary.
Each inverter module possesses its own MPP tracker, which reduces yield losses caused by the mismatching of the solar generator.

Main features
• High efficiency
• No-load voltage up to 900 V (up to 1000V optionally)
• MPPT-range 425 V - 875 V
• Low distortion factor
• Cos Phi adjustable
• Free assignment of functions to digital and analog inputs and outputs
• Adjustable operating behavior
• Insulation monitoring
• Monitoring of mains with adjustable operating range
• Surge protectors on mains and generator side
• Interference suppression filter on mains and generator side
• Communication interfaces
- RS485 and CAN (standard)
- Profibus DP, Ethernet (option)
• Control unit KP500
• Ease of operation
• Quick commissioning
• Easy to maintain due to readily accessible components
• Operation with grounded generators

Enclosure
IP20 (EN 60529)

Standards and directives
Mains connection terms:
• VDE 0126-1-1
• ENEL DK 5940
• Real Decreto 661/2007
• Real Decreto 1663/2000

Electromagnetic Compatibility:
• DIN EN 61000-6-2; VDE 0839-6-2 (2006)
• DIN EN 61000-6-4; VDE 0839-6-4 (2007)
• DIN EN 61000-3-11; VDE 0838-11 (2001-04)
• DIN EN 61000-3-12; VDE 0838-12 (2005-09)

Safety function, Enviroment:
• DIN EN 50178; VDE 0160
•DIN EN 60529; VDE 0470-1
• DIN EN 60721-3-3
• EN 60950-1
• CE

Certifications for further country-specific standards projected

Accessories
Data logger RPSlog100
Data logger RPSlog800
String Connection Boxes
PC-Software VPlus