DELTA H2.5 Solar Inverters User Guide

: September 22, 2024
: Delta

Table of Contents

H2.5 Solar Inverters
Specifications:
Product Overview:
Why Choose a Delta Inverter?
Product Usage Instructions:
Residential Installations:
Commercial Systems:
Large Ground-mounted Installations:
- FAQ:
Q: What are the advantages of having a solar power system?

H2.5 Solar Inverters

Specifications:

Delta Solar Inverters – Anumar Solarpark Schornhof, with M70A
solar inverters

Operating Voltage Range: 30 to 500 VDC – 30 to 600 VDC

AC Voltage Range: 230 VAC, single phase – 230 / 400 VAC, 3
phases

Product Overview:

The Delta Group, founded in 1971, offers solar inverters and
system monitoring solutions for PV installations of all sizes.
Delta inverters are known for their flexibility in solar systems,
from residential to large ground-mounted installations.

Why Choose a Delta Inverter?

Generate green electricity
Save money
Long-term availability and sustainability of the photovoltaic
system
Flexibility in system size and complexity

Product Usage Instructions:

Residential Installations:

For residential installations, recommended inverters include
H2.5, H3A, H4A, H5A, M6A, M8A, M10A, M15A, M20A, and M30A. Contact
distributors and installers for installation.

Commercial Systems:

Commercial premises can benefit from Delta inverters like M6A,
M8A, M10A, M15A, M20A, M30A, M50A, M70A, and M100A. Choose the
right inverter based on your roof size and complexity.

Large Ground-mounted Installations:

For large ground-mounted installations, consider inverters like
M50A, M70A, M100A, M125HV, M225HV, and M350HV for peak power
outputs. Get support from Delta’s experienced team for large
projects.

FAQ:

Q: What are the advantages of having a solar power system?

A: The advantages include clean, affordable electricity, green
corporate image, inexpensive energy for vehicles, and more control
over energy costs.

Anumar Solarpark Schornhof, with M70A solar inverters
Solar Product Overview 2024
Solar inverters. System monitoring. Customer support. For PV installations of all sizes.

solarsolutions.delta-emea.com

Smarter. Greener. Together.

Delta. Smarter. Greener. Together.
The Delta Group was founded in 1971 and, in 2023 with 85,000 employees, achieved sales of 12.9 billion US dollars. As part of the Delta Group, Delta Electronics has been developing and marketing solar inverters and system monitoring solutions since 1999. Product management and Europe-wide customer support are conducted from Germany, while there are regional locations in several European countries.
Why Choose a Delta Inverter?
By installing a photovoltaic system, you can generate green electricity, while also saving money. Choosing the right inverter is crucial for the long-term availability and sustainability of the photovoltaic system.

Delta inverters can be used flexibly in solar systems of any size or complexity — from private homes to large roof-mounted systems to huge ground- mounted installations of several hundred megawatts with thousands of inverters.
The advantages of having your own solar power system: Clean, affordable electricity Green corporate image Inexpensive energy to charge company and customer vehicles More control over energy costs by reducing reliance on the public grid

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Solar Product Overview 2024 / 2024-05-29

Solar inverters for a wide range of applications

Residential solar installations play a crucial role in the energy transition. To ensure that homeowners can also benefit from the quality and reliability of our products, we have established a dense network of distributors and installers across Europe

Residential Installations

Recommended inverters:
H2.5 / H3A / H4A / H5A M6A / M8A / M10A M15A / M20A / M30A
You have space on your commercial premises for solar modules? No matter how large or complex the roof is, Delta has the right solar inverter for you. Thanks to our wide range of three-phase inverters, we can find the right combination for your needs.

Commercial Systems

Recommended inverters:
M6A / M8A / M10A M15A / M20A / M30A M50A / M70A / M100A
Do you think in very large dimensions? Delta has a high level of expertise in high-performance inverters for large ground-mounted installations with peak power outputs of up to several hundred megawatts. Our experienced team of experts is at your side in every project phase.

Delta Electronics office, Helmond, NL
Large Ground-mounted Installations

Recommended inverters:
M50A / M70A / M100A M125HV / M225HV / M350HV
Solar Product Overview 2024 / 2024-05-29

Photo: PRE Energy GmbH 3

Overview of inverters 2.5 to 10 kVA

Max. apparent power Operating voltage range AC voltage range
15 to 30 kVA

H2.5 Flex

H3A Flex H4A Flex

2.5 kVA

3 kVA

4 kVA

30 to 500 VDC 30 to 600 VDC 230 VAC, single phase

H5A Flex 5 kVA

M6A

M8A

6.3 kVA

8.4 kVA

200 to 1000 VDC 230 / 400 VAC, 3 phases

M10A 10.5 kVA

Max. apparent power Operating voltage range AC voltage range
v
50 to 100 kVA

M15A Flex 16.5 kVA 200 to 1000 VDC 230 / 400 VAC, 3 phases

M20A Flex 22.0 kVA

M30A Flex 33.0 kVA

Max. apparent power Operating voltage range AC voltage range
greater than 100 kVA

M50A Flex 55.0 kVA 200 to 1000 VDC 230 / 400 VAC, 3 phases

M70A Flex 77.0 kVA

M100A Flex 110.0 kVA
400 VAC, 3 phases

Product name Max. apparent power Operating voltage range AC voltage range

M125HV 140 kVA 860 to 1500 VDC 600 VAC, 3 phases

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M225HV 225 kVA 500 to 1500 VDC 800 VAC, 3 phases

M350HV 350 kVA

Solar Product Overview 2024 / 2024-05-29

2.5 to 5 kVA for small residential PV systems
Wi-Fi

Input (DC) Max. power Operating voltage range MPP voltage range MPP voltage range with max. power Max. current (per MPP/total) Max. number of MPP trackers Max. number of module strings per MPP tracker

H2.5 Flex 2.6 kW 30 to 500 VDC 30 to 500 VDC 240 to 470 VDC 11 A 1 x 1 module string
1

H3A Flex
3.19 kW
30 to 600 VDC 30 to 550 VDC 180 to 500 VDC 11 A/ 18 A
2 x 1 module strings

H4A Flex 4.32 kW
240 to 500 VDC

Output (AC) Max. apparent power 2) Nominal apparent power 2) Voltage range 3) Nominal current Frequency range 3) Adjustment range of power factor

H2.5 Flex

H3A Flex

H4A Flex

2.5 kVA

3.0 kVA

4.0 kVA

2.5 kVA

3.0 kVA

4.0 kVA

230 VAC -20% / +22%, single-phase (L, N, PE)

10.9 A

13 A

17.4 A

50 / 60 Hz ± 5 Hz

0.8 cap to 0.8 ind

General Specifications Peak efficiency EU efficiency Operating temperature range Temperature range without power derating Relative humidity Max. operating altitude Mounting options Standard warranty

H2.5 Flex

H3A Flex

H4A Flex

97.5%

96.8%

-25 to +60°C

-25 to +40°C

0 to 95% non-condensing

2000 m (above sea level)

Wall mounting 4)

5 years (warranty extension available upon request)

Other specifications Connection type AC side Connection type DC side Communication interfaces

H2.5 Flex

H3A Flex

Wieland RST25I3S AC connector 5)

Multi-Contact MC4 5)

Wi-Fi

H4A Flex

Cos Phi = 1 (VA = W) 2) Whether the maximum apparent power can be achieved depends on the environmental conditions. 3) AC voltage and frequency range are programmed based on the respective country regulations. 4) Mounting plate included in scope of delivery. 5) Included in scope of delivery.

H5A Flex 5.28 kW
11 A/ 22 A
H5A Flex 5.0 kVA 5.0 kVA 22 A
H5A Flex 98.3% 98.0%
H5A Flex

Solar Product Overview 2024 / 2024-05-29

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6 to 10 kVA for residential and small commercial PV systems
Wi-Fi

Input (DC) Operating voltage range MPP voltage range MPP voltage range with max. power 1) Switch-on voltage Max. current (per MPP tracker/total) Max. number of MPP trackers

M6A

M8A

200 to 1000 VDC 200 to 1000 VDC 315 to 800 VDC 250 VDC 10 A / 20 A 2)

415 to 800 VDC 10 A / 20 A 3)

Parallel inputs: 1; separate inputs: 2

M10A DC1: 15 A, DC2: 10 A/25 A 4)

Output (AC) Max. apparent power 5) Nominal apparent power 5) AC voltage range 6) Nominal current per phase Frequency range 6) Adjustment range of power factor

M6A

M8A

M10A

6.3 kVA

8.4 kVA

10.5 kVA

6.0 kVA

8.0 kVA

10.0 kVA

230 VAC ± 20% / 400 ± 20%; 3 phases + PE (), 3 phases + N + PE (Y)

8.7 A

11.6 A

14.5 A

50/60 Hz ± 5 Hz

0.8 cap to 0.8 ind

General Specifications Peak efficiency EU efficiency Operating temperature range Temperature range without power derating Relative humidity Max. operating altitude Mounting options Topology Standard warranty

M6A

M8A

98.3%

97.6%

-25 to +60°C

-25 to +40°C

0 to 100%, non-condensing

2000 m (above sea level)

Wall mounting 7)

Without transformer

5 years (warranty extension available upon request)

M10A 98.3% 98.0%

Other specifications Connection type AC side Connection type DC side Communication interfaces

M6A

M8A

M10A

Amphenol C16-3 AC plug 8)

Multi-Contact MC4 8)

2 x RS485, 1 x dry contact, 1 x external power-off, 6 x digital inputs, Wi-Fi

When operating with symmetrical DC inputs (50% / 50%) 2) Maximum 4.25 kW per DC input with asymmetrical load (40 / 60%) 3) Maximum 5.65 kW per DC input with asymmetrical load (40 / 60%) 4) Maximum 7.0 kW for input DC1 and 5.4 kW for input DC2 5) Cos Phi = 1 (VA = W) 6) AC voltage and frequency range are programmed based on the respective country regulations. 7) Mounting plate included in scope of delivery. 8) Included in scope of delivery.

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Solar Product Overview 2024 / 2024-05-29

15 to 30 kVA for residential and commercial PV systems
Wi-Fi

Input (DC) Operating voltage range 1) MPP voltage range MPP voltage range with max. power Nominal voltage Max. current (per MPP tracker/total) Max. number of MPP trackers DC surge protection devices

M15A Flex

M20A Flex

200 to 1000 VDC 200 to 1000 VDC 380 to 900 VDC 600 VDC 25 A/ 45 A

480 to 900 VDC 26 A/ 48 A

2

Type 2 (EN 50539-11), replaceable

M30A Flex
480 to 900 VDC 30 A/ 72 A 3

Output (AC) Max. apparent power 2) Max. active power Nominal apparent power 2) Voltage range AC 3) Nominal current per phase Frequency range 3) Adjustment range of power factor AC surge protection devices

M15A Flex

M20A Flex

M30A Flex

16.5 kVA

22 kVA

33 kVA

16.5 kW

22 kW

33 kW

15 kVA

20 kVA

30 kVA

230 / 400 V -20% / +30%, 3 phases + PE (), 3 phases + N + PE (Y)

25 A

32 A

50 A

50 / 60 Hz ± 5 Hz

0.8 cap to 0.8 ind

Type 2 (EN 61463-11), replaceable

General Specifications Peak efficiency EU efficiency Operating temperature range Temperature range without power derating Relative humidity Max. operating altitude Mounting options Topology Standard warranty

M15A Flex

M20A Flex

98.4%

98.5%

97.9%

98.1%

-25 to +60°C

-25 to +50°C

0 to 100%, non-condensing

4000 m (above sea level)

Wall mounting 4)

Without transformer

5 years (warranty extension available upon request)

M30A Flex 98.6% 98.2%

Other specifications Connection type AC side Connection type DC side Communication interfaces

M15A Flex

M20A Flex

M30A Flex

AC plug 5)

Amphenol H4 5)

2 x RS485, 1 x dry contact, 1 x external power-off, 6 x digital inputs, Wi-Fi

The maximum withstand voltage is 1100 VDC. The inverter starts to work if the input voltage falls below 1000 VDC. 2) Cos Phi = 1 (VA = W) 3) AC voltage and frequency ranges are programmed according to the respectively applicable national regulations. 4) Mounting plate included in scope of delivery. 5) Included in scope of delivery

Solar Product Overview 2024 / 2024-05-29

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50 to 100 kVA for ground-mounted and large roof-top systems

Input (DC) Max. input voltage Operating voltage range MPP voltage range with max. power Nominal voltage Max. current (per MPP tracker/total) Max. number of MPP trackers DC surge protection devices

M50A Flex

M70A Flex

M100A Flex

1000 VDC 1) 200 to 1000 VDC 390 to 900 VDC 600 VDC 26 A/ 132 A

460 to 900 VDC 26 A/ 156 A

470 to 840 VDC 600 VDC 30 A/ 240 A

6 x 2 module strings

6 x 3 module strings

8 x 2 module strings

Type 2 (EN 61463-11), replaceable; combined Type 1+2 retrofittable

Output (AC) Max. apparent power 2) Max. active power 2) Nominal apparent power 2)
Voltage range AC 5)
Max. current Frequency range 5) Adjustment range of power factor AC surge protection devices

M50A Flex

M70A Flex

M100AFlex

55 kVA

77 kVA

110 kVA

55 kW 3)

77 kW 3)

110 kW 4)

50 kVA

70 kVA

100 kVA

230 / 400 V -20% / +30%, 3 phases + PE (), 3 phases + N + 400 V -20% / +30%, 3 phases +

PE (Y)

PE (), 3 phases + N + PE (Y)

83 A

112 A

168 A

50 / 60 Hz ± 5 Hz

0.8 cap to 0.8 ind

Type 2 (EN 61463-11), replaceable; combined Type 1+2 retrofittable

General Specifications Peak efficiency EU efficiency Operating temperature range Temperature range without power derating Relative humidity Max. operating altitude Mounting options Topology Standard warranty

M50A Flex

M70A Flex

98.7%

98.8%

98.3%

98.4%

-25 to +60°C

-25 to +50°C

0 to 100%, non-condensing

4000 m (above sea level)

Wall mounting 6), ground mounting 7)

Without transformer

5 years (warranty extension available upon request)

M100A Flex 98.7% 98.4%

Connections and Communication Connection type AC side Connection type DC side Communication interfaces

M50A Flex

M70A Flex

M100A Flex

Screw terminals

Amphenol H4 8)

2 x RS485, 2 x dry contacts, 1 x external power-off, 6 x digital inputs, Bluetooth®

The maximum withstand voltage is 1100 VDC. The inverter starts to work when the input voltage drops below 1000 VDC. 2) Cos Phi = 1 (VA = W) 3) At ambient temperatures 40°C 4) At ambient temperatures 30°C. 5) AC voltage and frequency range are programmed based on the respective country regulations. 6) Mounting plate included in scope of delivery. 7) Mounting feet can be ordered separately. 8) Included in scope of delivery.

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Solar Product Overview 2024 / 2024-05-29

Greater than 100 kVA for large ground-mounted installations
PLC

Input (DC) Max. input voltage Operating voltage range MPP voltage range with max. power Nominal voltage Max. current (per MPP tracker/total) Max. number of MPP trackers DC surge protection devices

M125HV

M225HV

1500 VDC 860 to 1500 VDC 860 to 1350 VDC 1) 1050 VDC 150 A/ 150 A

500 to 1500 VDC 850 to 1350 VDC 1150 VDC 40 A/ 320 A

1 x 20 module strings

8 x 2 module strings

Type 2 (EN 50539-11), replaceable on M125HV

M350HV
850 to 1330 VDC 40 A/ 480 A 12 x 2 module strings

Output (AC) Max. apparent power 2) Max. active power 3) Nominal apparent power 2)
AC voltage range 4)
Max. current Frequency range 4) Adjustment range of power factor AC surge protection devices

M125HV

M225HV

M350HV

140 kVA

225 kVA

350 kVA

125 kW

225 kW

350 kW

125 kVA

225 kVA

350 kVA

600 VAC -36% / +15%, 3 phases + PE ()

800 V -20% / +15%, 3 phases + PE ()

135 A

165 A

254 A

50 / 60 Hz ± 5 Hz

0.8 cap to 0.8 ind

Type 2 (EN 61463-11), replaceable on M125HV

General Specifications Peak efficiency EU efficiency Operating temperature range Temperature range without power derating Relative humidity Max. Operating altitude (above sea level)
Mounting options
Topology Standard warranty

M125HV

M225HV

99.1%

99.0%

98.7%

98.8%

-25 to +60°C

-30 to +60°C

-25 to +50°C

-30 to +50°C

0 to 100%, non-condensing

3000 m

4000 m

Wall mounting 5), ground mounting 5)

Wall mounting 5)

Without transformer 5 years (warranty extension available upon request)

M350HV

Connections and Communication Connection type AC side Connection type DC side
Communication

M125HV

M225HV

M350HV

Screw bolt

Amphenol H4 Plus 6)

Amphenol H4 Pro 6)

2 x RS485, 2 x dry contacts, 1 x external power-off, 6 x digital inputs, Bluetooth®, PLC (M225HV / M350HV only; PLC100 converter additionally required); Delta protocol / SunSpec
protocol

Environmental conditions: < 25°C: 860 to 1350 VDC, < 40°C: 860 to 1250 VDC
Cos Phi = 1 (VA = W) 3) The active power can be limited. 4) AC voltage and frequency range are programmed based on the respective country regulations. 5) Mounting materials included in scope of delivery 6) Included in scope of delivery.

Solar Product Overview 2024 / 2024-05-29

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System monitoring and software
DeltaSolar app
Wireless connection to the inverter via Wi-Fi or Bluetooth®
Convenient commissioning and parameter setting Local system monitoring Rapid integration of the individual inverters into the
MyDeltaSolar Cloud for remote monitoring Comprehensive statistics with clear diagrams Configurable system status notifications
DC1 Data Collector
Simultaneous access to all connected inverters Central data interface to the MyDeltaSolar Cloud Various communication interfaces Up to 7 days of data backup if the Internet
connection is interrupted Dynamic feed-in limitation
P1 or P3 power meter
Additional recording of energy consumption Visualization of the energy flow in both directions P1 for single-phase networks, P3 for three-phase
networks

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Solar Product Overview 2024 / 2024-05-29

Special Features and Safety Functions
Special features are integrated into our inverters to increase safety and improve operating behavior.

Example: M70A Flex

Data point collection for string monitoring and I-V curve generation
Arc detection Reverse polarity protection Anti-PID function Reactive power compensation even at night Comprehensive active and reactive power
control

AC and DC surge arresters Reliable surge protection protects systems against associated damage. All Delta inverters for commercial photovoltaic systems have built-in AC/DC surge protection devices type 2. Combination type 1+2 can be ordered separately.
Arc detection To minimize the risk of arcs and therefore fires, an arc detection is integrated into all of our new string inverters.

Serial electric arcs

Solar Product Overview 2024 / 2024-05-29

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solarsales.emea@deltaww.com Telephone: +49 7641 455 547 (phone number in Germany)

solarsolutions.delta-emea.com
Solar Product Overview 2024 / 2024-05-29 © Copyright Delta Electronics (Netherlands) B.V. All rights reserved. All information and specifications are subject to change without notice

Smarter. Greener. Together.