SUNSYS B20E

Installations in medium-sized and large commercial buildings

Installations in all types of environmental conditions

Ideal solution for photovoltaic applications on buildings.

The transformerless design offers a conversion efficiency which is amongst the best on the market.

The double tracker series input provides:

optimization of the system’s energy production,

maximisation of the output of extended roof systems with several layers, systems with different orientations, systems with areas of shade,

management of a system divided into sections with different photovoltaic module technologies with a single inverter.

MPPT’s broad voltage tolerance provides excellent flexibility in combination with photovoltaic modules.

The IP65 degree of protection makes it suitable for installation in both indoor and outdoor environments.

High-resolution LCD display with a multilingual menu.

Equipped with graphic LCD control panel with a datalogger and RS485 connection for simple and immediate monitoring of the system.

Standard and option features

Technical Data

Input (DC)
Maximum PV power (STC module conditions)	22000 W
Rated voltage	635 VDC
MPPT voltage range	470 to 820 VDC
Number of independent MPPTs	2
Maximum input current	22 A x2

Output (AC)
Power rating	20000 W
Rated voltage	400 Vrms(1) 3ph + N
Rated frequency	50 Hz(1)
Rated current	29 Arms
Total harmonic distortion of current	< 3 %
Power factor range	0.8 to 1(2)
Topology	Transformerless

Level of efficiency
Maximum efficiency	98.30 %
EU efficiency	98.00 %

General data
Cooling system	Smart cooling
Environmental degree of protection (according to EN 62109)	IP65
Operating temperature	-20 to +60 °C
Sound emission	< 55 dB 1 m from inverter
Dimensions (L x D x H)	625 x 278 x 612 mm
Weight	43.5 kg

(1) The accepted tolerance depends on the country of installation and the regulations in force.

(2) Setup according to the requirements of the electricity supplier.

SMART SELECTION