SolarMax 20S/35S - Enerpoint

SolarMax 20S/35SCompact and efficient.

S stands for smart and stable.With the transformerless central inverters of the S series your PV powerplant will deliver maximum effi ciency. The devices are extraordinarily compactand suitable for outdoor installation. What also makes S series invertersattractive is their price/performance ratio and their excellent servicessuch as the service package MaxControl. Sputnik Engineering commissionedthe fi rst SolarMax PV central inverters in 1992. Since then thousandsof central inverters have been put into operation and deliver the bestenergy yields day after day.Swiss QualityFor us quality has long had the highest priority: all Sseries inverters are tested in compliance with currentproduct safety standards and bear the TÜVmark “Type Approved”. The development, the fi nalinstallation and all quality controls of the S seriesare conducted in Switzerland. This is somethingyou can rely on.Attractive price /performance ratioDespite their low price the S series inverters deliverhigh effi ciency, maximum reliability and interfacesfor device monitoring and data evaluation. Digitalsignal processing for the sine current regulation isstandard.

Suitable for outdoorand indoor installationHigh-quality and rugged aluminium housing givesthe electronic components the best possible protection.The IP54 protection class also permits allinverters in the SolarMax S series to be installedand safely operated both indoors and outdoors.Warranty coverageThe central inverters of the S series are characterisedby a two-year standard warranty that can beextended to up to 12 years (including standardwarranty) using the options “Limited” and “Full”.MaxControl, the full-service package, can also beconcluded for up to 20 years. This service package(alarm system, device and system monitoring, dataanalysis) includes an availability guarantee. If theavailability of the inverter (per year) is lower than97 %, we will provide you with a fl at yield loss payment.

Smart operationand communicationAll important information and settings are accessibleon the display unit. The integrated data loggersaves statistics on yields, peak outputs and operatinghours for as long as ten years. Each inverter canbe integrated into the MaxComm communicationssystem via RS485 and Ethernet interfaces.Innovativecooling systemNo matter how hot the sun shines, the inverters inthe SolarMax S series always deliver best performance.The intelligent cooling concept exhausts heateffi ciently out of the housing while the sensors continuouslymonitor the operating temperature. In extremesituations the power output is lowered toprotect the inverters against overheating.Competentafter-sales serviceAnd if an inverter should at any time fail to operateas usual, our Service Centre can provide straightforwardand competent assistance in fi ve languages.If the solution cannot be found quickly, ourservice technicians will come to the site right away.We also support our partners by providing themwith practical training sessions at regular intervals.

MaxComm for system monitoringMaxWebThe MaxWeb xp data logger forms the core ofthe web-based monitoring system; it enablesmultimedia communication with the photovoltaicplant and sends information via theinternet to wherever you wish to receive it.MaxRemote enables remote-controlled performancereduction by the operator.MaxWeb Portal(performance, yield, alarm)MaxMeteoMaxWeb xpSMS(alarm)WWWE-Mail(alarm, XML)MaxRemote(interface)MaxDisplay(interface: performance, yield)MaxCountMaxVisioA touch display visualises the data from a photovoltaicplant including individual inverters.MaxVisioMaxTalkMaxTalkUser-friendly PC software for on site communicationand for local system monitoring.AccessoriesMaxConnect plusThe devices of the MaxConnect series are generator terminal boxes for SolarMax centralinverters. They are designed for the purpose of combining the individual cables ofyour solar generator. Thanks to single-cable monitoring the devices can detect defectsand shadings prematurely. With integrated cable protections and over-voltage conductors,as well as an integrated high-performance circuit breaker the MaxConnect plus issecured comprehensively. Connection is implemented using terminal clamps.MaxConnect plus pWith its housing made of plastic and the MC4 plug-and-socket connections for connectingthe cables, the MaxConnect plus p meets the requirements of protection classII and does not require any earthing. The device meets the French UTE standard specifyingthis protection class for components on the direct current side of PV systems.

SpecificationsTÜVRheinlandProduct SafetyBAUARTGEPRÜFTTYPEAPPROVEDSolarMax 20SSolarMax 35SInput values Maximum PV generator output power 1) 24 kW 45 kWMPP voltage range400...800 VMaximum DC voltage900 VMaximum DC current 48 A 78 ANumber of MPP-Trackers 1 1Connection type14 x MC4 connectors with7 x MC4 connectors with integrated 10 A fusesintegrated 10 A fuses3 screw terminals 35 mm 2 , bushing 3 x M20 for cable diamater 6-15 mmOutput values Rated output power 20 kW 35 kWMaximum apparent output power 22 kW 38.5 kWNominal mains voltage3 x 400 VMaximum AC current 31 A 54 AMains nominal frequency / range50 Hz / 45…55 HzPower factor (cos phi) > 0.98Distortion factor at rated power < 3 %Connection type5 screw terminals 35 mm 2 , bushing 3 x M20 for cable diamater 20-33 mmGrid connectionThree-phase (with neutral conductor)Efficiency Maximum efficiency 96.6 % 96.8 %Europ. efficiency95.5 % @ 600 VDC96.0 % @ 700 VDC95.5 % @ 600 VDC96.1 % @ 700 VDCPower input Own consumption, night 2…7 WAmbient conditions Protection type compliant with EN 60529 IP54Ambient temperature range -20 °C…+ 60 °CAmbient temperature range at rated power -20 °C…+ 45 °CRelative humidity0…98 % (no condensation)Configuration Display Graphic LC display with backlight and status LEDData loggerData logger for energy yield, peak output and operating duration for the last31 days, 12 months and 10 yearsStandards & guidelines CE-compliant YesEMC EN 61000-6-2 / EN 61000-6-3Standard / guideline compliance VDE 0126-1-1 / DK 5940 / RD 661Device safety TÜV “Type approved” compliant with EN 50178Interfaces Data communication RS485 / EthernetStatus signalling contactPotential-free terminal contact pair (Confi gurable function)Weight & dimensions Weight 98 kg 125 kgDimensions in mm (W x H x D) 655 x 1090 x 455WarrantyStandard 2 years / extension to 5, 10 or 12 years possible1)Recommended overdimensioning 15 % (ISE Fraunhofer study) All rights, amendments and errors reserved.Efficiency SolarMax S seriesEffi ciency η [%]100908070605040302010010 20 30 40 50 60 70 80 90 100Output power PAC,nom [%]2011/05 en