A complete overview of the technical data can be found in the data sheet.

Input (DC)	H2.5	H3A	H4A	H5A
Maximum input power	2.6 kW	3.19 kW	4.32 kW	5.28 kW
Input voltage range	30 to 500 VDC	30 to 600 VDC
MPP voltage range with maximum power	240 to 470 VDC	180 to 500 VDC	240 to 500 VDC
Maximum current (per MPP tracker/total)	11 A/11 A	11 A/18 A
Maximum number of MPP trackers	1 x 1 module string	2 x 1 module string
Output (AC)	H2.5	H3A	H4A	H5A
Maximum apparent power	2.5 kVA	3.0 kVA	4.0 kVA	5.0 kVA
Rated apparent power	2.5 kVA	3.0 kVA	4.0 kVA	5.0 kVA
Voltage range	230 VAC -20%/+22%, single-phase (L, N, PE)
Nominal current	10.9 A	13.0 kVA	17.4 kVA	22.0 kVA
General specifications	H2.5	H3A	H4A	H5A
Delta model name	H2.5_210	H3A_220	H4A_220	H5A_220
Peak efficiency	97.5%	97.5%	97.5%	98.3%
Operating temperature range	-25 to +60°C
Topology	Without transformer
Mechanical details	H2.5	H3A	H4A	H5A
Dimensions (H x W x D)	318 × 380 × 130 mm
Weight	10 kg	10 kg	11 kg	12 kg
Cooling	Natural convection, without fan
Connection type AC side	1 AC plug Wieland RST25IRS
Connection type DC side	1 pair of Multi-Contact MC4 connectors	2 pairs of Multi-Contact MC4 connectors
Degree of protection	IP65
Communication	H2.5	H3A	H4A	H5A
Communication interfaces	Wi-Fi
Safety/Standards	H2.5	H3A	H4A	H5A
Degree of protection	IP65
Safety class	I
Islanding protection/grid regulation	VDE 0126-1-1, VDE-AR-N 4105, EN 50438 2013:Netherlands, C10/11