Mastervolt CS12TL RP

Central String inverter that fits your system

The SunMaster CS solar inverter builds on 20 years of experience and know how by the Mastervolt R&D centre in Amsterdam. This results in key features such as conversion efficiencies up to 98%, extremely low system losses and a wide input window up to 1000 V.

Quick installation, low maintenance

The SunMaster CS comes with a mounting bracket and a waterproof AC plug for quick and flexible installation. Integrated handles assist in moving and lifting the CS with ease. Once installed, the SunMaster CS requires very little maintenance.

Maximum annual yield

The SunMaster CS is developed based on Mastervoltâ€™s unique philosophy. In addition to

maximum efficiency, we focus on high yields in less than optimal conditions. As a result, the SunMaster CS has various exclusive features:

· By starting up at optimal voltage, the SunMaster CS extends the solar day, while its low no-load consumption helps convert solar power down to the last ray of sun.

· The SunMaster CS is immune to minor electricity failures and only goes offline when absolutely necessary.

· The MPP tracker tracks the light conditions quickly and carefully, even in changing weather conditions. Tests in realistic conditions show that 99.8% of the available PV power is converted!

· The transformerless non-isolated SunMaster CS achieves a stable and high conversion efficiency over the whole input range.

· The SunMaster CS stays cool, even in warm outside temperatures, maximizing efficiency and lifespan.

General specifications

Operating temperature -20 °C to 60 °C; full power up to 45 °C-4 to 140 °F

Enclosure coated aluminium

Protection degree IP65 for outdoor application

Relative humidity 4-100% condensing

Safety class class I

Inverter technology transformerless

Cooling passive + fan

Dimensions, hxwxd 630x650x260 mm24.80 x 25.59 x 10.24 inches

Weight 42 kg92.59 pounds

Solar input (DC) specifications

PV power range 12000-15500 Wp

Max. input power 13800 W

Start-up power 20 W

Operating voltage range 180-950 V

MPP voltage range at nom. power 380-800 V

Nom. voltage 650 V

Max. voltage 1000 V

Number of inputs 2 sets MultiContact MC4 connectors

Number of MPP trackers 2 MPP trackers

Efficiency MPP trackers (static/dynamic) > 99.9 % / 99.8 %

Nom. input current 2x 17 A

FlexPower 2:1

Max. power per tracker 8,6 kW

Grid output (AC) specifications

Grid voltage 400/230 V (3/N/PE) ± 20%

Nom. output power 12500 VA

Max. output power 13120 VA

Max. output current 3x 20 A

Frequency 50/60 Hz

Power factor > 0.99 at full power

Reactive power control 0.80 inductive .. 0.80 capacitive

DC current injection < 0,25% In

RCD integrated; 30/300 mA DC sensitive

Low Voltage Ride Through (LVRT) integrated

Standby power < 2 W

EU efficiency 97 %

Max. efficiency 97.5 %

AC connection IP67 3-phase, suitable for 4-10 mm² cables

Regulations & directives

CE conformity yes

Nat. grid requirements VDE0126-1-1; VDE AR-N-4105; BDEW; RD1663; G59/2; Synergrid C10/11; CEI-021; G83/1-1

Communication & monitoring

Display multi-language graphical LCD display

Diagnostics datalogger with 10 year memory

Communication 2x RS485 connections / MasterBus field service interface / MasterBus string box interface

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