DC Input

	STP 12-50	STP 15-50	STP 20-50	STP 25-50
Maximum power of PV array	18000 Wp STC	22500 Wp STC	30000 Wp STC	37500 Wp STC
Maximum input voltage	1000 V	1000 V	1000 V	1000 V
MPP voltage range for rated power	210 V to 800 V	260 V to 800 V	345 V to 800 V	430 V to 800 V
MPP voltage range	150 V to 1000 V	150 V to 1000 V	150 V to 1000 V	150 V to 1000 V
Rated input voltage	580 V	580 V	580 V	580 V
Minimum input voltage	150 V	150 V	150 V	150 V
Initial input voltage	188 V	188 V	188 V	188 V
Maximum usable input current per input	24 A	24 A	24 A	24 A
Maximum short-circuit current per input¹⁾	37.5 A	37.5 A	37.5 A	37.5 A
Maximum reverse current into the PV modules	0 A	0 A	0 A	0 A
Number of independent MPP inputs	3	3	3	3
Strings per MPP input	2	2	2	2
Overvoltage category as per IEC 62109-1	II	II	II	II