DC Input


STP 20-US-50

STP 25-US-50

STP 30-US-50

Maximum power of PV array

30000 Wp STC

37500 Wp STC

45000 Wp STC

Maximum input voltage

1000 V

1000 V

1000 V

MPP voltage range

350 V to 800 V

430 V to 800 V

515 V to 800 V

Rated input voltage

685 V

710 V

710 V

Minimum input voltage

150 V

150 V

150 V

Initial input voltage

188 V

188 V

188 V

Maximum usable input current per input

24 A

24 A

24 A

Maximum short-circuit current per input1)

37.5 A

37.5 A

37.5 A

Maximum reverse current into the PV modules

0 A

0 A

0 A

Number of independent MPP inputs

3

3

3

Strings per MPP input

2

2

2

Overvoltage category in accordance with UL 62109-1

II

II

II

1) In accordance with UL 62109-1: ISC PV