29.9kW and 40kW three-phase commercial string inverters

Commercial power.
Intelligent control.
Built to perform.

Bring high-capacity solar conversion, intelligent string monitoring and integrated electrical protection together with iStore’s advanced three-phase commercial inverter range.

Four MPPT trackers Eight PV string inputs 10-year warranty
Explore the range View specifications
3Φ Three phase
29.9kW 40kW
iStore 29.9kW and 40kW three-phase commercial string inverter IS-INV-29900 / 40000-3PH
60kWp Maximum recommended DC input
4MPPT Eight intelligent string inputs
98.7% Maximum efficiency

Commercial solar conversion

More strings.
More visibility.
Smarter commercial power.

The iStore commercial inverter range combines four independent MPPT trackers, eight PV string inputs and intelligent monitoring within one high-capacity three-phase platform.

Available in 29.9kW and 40kW models, the range gives commercial solar designers greater flexibility across larger and more complex rooftop arrays.

Connected architecture Four independently managed solar zones
4 MPPT / 8 strings

PV string inputs

MPPT 1 String 1 String 2
MPPT 2 String 3 String 4
MPPT 3 String 5 String 6
MPPT 4 String 7 String 8
iStore three-phase commercial solar inverter Intelligent conversion
L1 L2 L3

Three-phase commercial output

4 Independent MPPT trackers
8 Intelligently monitored strings
3Φ Commercial grid connection
01

Flexible commercial array design

Four independent MPPT trackers help accommodate separate strings, roof orientations and differing solar conditions within the inverter’s operating limits.

02

Eight-string intelligent monitoring

String-level visibility supports faster fault identification, more informed troubleshooting and clearer commercial system performance analysis.

03

Two commercial output options

Choose between 29.9kW and 40kW rated output models according to the site connection, array capacity, expected demand and applicable network requirements.

High-capacity solar input

More roof.
More solar potential.

Connect up to 44.85kWp of recommended DC input with the 29.9kW model, or up to 60kWp with the 40kW commercial inverter.

Four independent MPPT trackers and eight PV string inputs provide commercial solar designers with greater flexibility across larger rooftops, multiple orientations and differing operating conditions.

Up to 150% recommended DC input

Additional panel capacity can create more generation opportunity during mornings, afternoons and periods of lower solar irradiance.

01

Four independent MPPT trackers

Each tracker independently manages its connected strings within the inverter’s specified voltage and current limits.

02
200–1,000V MPPT operating range
1,100V Maximum input voltage
27A Maximum current per MPPT
Solar-array potential Designed for higher-capacity commercial PV
Up to 150%
Front view of an iStore three-phase commercial solar inverter
Recommended maximum DC input 60kWp Available with the 40kW model
Model 01 29.9kW
Rated output Maximum recommended PV
29.9kW 44.85kWp
Model 02 40kW
Rated output Maximum recommended PV
40kW 60kWp
4 MPPT trackers
8 PV inputs
40A Short-circuit current

Intelligent performance and protection

High efficiency.
Active protection.

Convert commercial solar energy with up to 98.7% maximum efficiency across both inverter models.

AI-powered arc-fault detection, integrated PID recovery, string-fault monitoring and coordinated surge protection help support safe, dependable commercial operation.

Energy conversion High-efficiency commercial performance
Active
Maximum efficiency 98.7% Across both models
29.9kW model 98.7%
40kW model 98.7%
European weighted efficiency 98.4%
Arc protection AI AFCI
Panel performance PID recovery
Enclosure protection IP66
Surge protection DC and AC
−25 to +60°C Operating temperature
4,000m Maximum altitude
<46dB Operating noise

Output derating applies above specified temperature and altitude thresholds. Refer to the current installation documentation.

01

AI-powered arc-fault protection

Intelligent AFCI technology helps identify potentially dangerous electrical arcing and initiate a protective response.

02

Integrated PID recovery

PID recovery technology helps reduce supported solar-module degradation and protect long-term commercial array performance.

03

Integrated electrical protection

A fuse-free design, integrated DC switch, residual-current monitoring and Type II-compatible DC and AC surge protection support safer system operation.

04

Commercial installation durability

An IP66-rated enclosure protects against dust and powerful water jets when the inverter is installed according to its location and clearance requirements.

Intelligent monitoring and diagnostics

See more.
Diagnose faster.
Stay informed.

Eight-string intelligent monitoring provides greater visibility across larger commercial solar arrays.

Connected performance information and Smart I-V Curve Diagnosis help qualified professionals identify potential issues and make troubleshooting more efficient.

Commercial monitoring overview Connected system visibility
System online
Solar array 8 monitored strings
Commercial inverter Intelligent conversion
Monitoring platform Performance data
String-level status Eight connected PV inputs
Connected
String 01 Online
String 02 Online
String 03 Online
String 04 Online
String 05 Online
String 06 Online
String 07 Online
String 08 Online
Generation Solar performance
String status Input visibility
System events Operating information
Diagnostics I-V curve analysis
Communication options
WLAN Ethernet RS485 MBUS
01

Greater input visibility

Eight-string intelligent monitoring

Monitor individual PV string inputs to provide clearer visibility across larger and more complex commercial arrays.

02

Smarter diagnostics

Smart I-V Curve Diagnosis

Supported diagnostic tools help qualified professionals assess string performance and investigate potential array issues.

03

Connected performance

Remote system visibility

View supported generation data, operating information and system events through the compatible monitoring platform.

04

Communication flexibility

Multiple connection options

Integrated WLAN, RS485, MBUS and compatible Smart Dongle connectivity support professionally configured commercial monitoring systems.

Two commercial output options

Choose the output.
Keep the intelligence.

Select between 29.9kW and 40kW rated output while retaining the same intelligent monitoring, protection and commercial inverter architecture.

The appropriate model depends on the site connection, solar-array capacity, switchboard, expected demand and applicable network requirements.

Model 01 3Φ Three phase
Rated inverter output 29.9kW
Recommended maximum PV 44.85kWp
Rated output current 43.2A
Maximum output current 43.2A
Commercial output 29.9kW
IS-INV-29900-3PH
Higher output
Model 02 3Φ Three phase
Rated inverter output 40kW
Recommended maximum PV 60kWp
Rated output current 57.8A
Maximum output current 63.8A
Commercial output 40kW
IS-INV-40000-3PH
Model comparison

Key differences across the range

Shared commercial platform
Specification 29.9kW model IS-INV-29900-3PH 40kW model IS-INV-40000-3PH
Rated AC active power 29,900W 40,000W
Recommended maximum DC input 44,850W 60,000W
Rated AC apparent power 29,900VA 40,000VA
Rated output current 43.2A 57.8A
Maximum output current 43.2A 63.8A
Maximum efficiency 98.7% 98.7%
Solar tracking 4 MPPT
PV connections 8 inputs
Maximum input voltage 1,100V
Enclosure protection IP66
Arc protection AI AFCI
Panel protection PID recovery

Technical specifications

Commercial performance.
Compared in detail.

Compare the 29.9kW and 40kW commercial inverter models across solar input, three-phase output, protection and operating data.

Final product selection and system design must be completed by an appropriately qualified commercial solar professional.

Model 01
29.9kW Rated three-phase output

IS-INV-29900-3PH

Model 02
40kW Rated three-phase output

IS-INV-40000-3PH

Technical comparison

29.9kW and 40kW three-phase models

4 MPPT 8 inputs IP66

Swipe to compare models

Specification
29.9kW model IS-INV-29900-3PH
40kW model IS-INV-40000-3PH
Solar input
Recommended maximum DC input
44,850W
60,000W
Maximum input voltage
1,100V
1,100V
MPPT operating voltage range
200 to 1,000V
200 to 1,000V
Rated input voltage
600V
600V
Maximum input current per MPPT
27A
27A
Maximum short-circuit current
40A
40A
MPPT trackers
4
4
Maximum PV inputs
8
8
Three-phase AC output
Rated AC active power
29,900W
40,000W
Rated AC apparent power
29,900VA
40,000VA
Rated output current
43.2A
57.8A
Maximum output current
43.2A
63.8A
Rated output voltage
230 / 400Vac
230 / 400Vac
Grid connection
3W / N + PE
3W / N + PE
Rated grid frequency
50 / 60Hz
50 / 60Hz
Maximum harmonic distortion
≤3%
≤3%
Protection and intelligent features
Arc-fault protection
Yes
Yes
Integrated PID recovery
Yes
Yes
PV string-fault monitoring
Yes
Yes
DC surge protection
Type II compatible
Type II compatible
AC surge protection
Type II compatible
Type II compatible
Anti-islanding protection
Yes
Yes
DC reverse-polarity protection
Yes
Yes
Residual-current monitoring
Yes
Yes
Performance and general data
Maximum efficiency
98.7%
98.7%
European weighted efficiency
98.4%
98.4%
Operating temperature
−25 to +60°C
−25 to +60°C
Relative operating humidity
0 to 100% RH
0 to 100% RH
Maximum operating altitude
4,000m
4,000m
Cooling method
Natural convection
Natural convection
Operating noise
<46dB
<46dB
Degree of protection
IP66
IP66
Dimensions
640 × 530 × 270mm
640 × 530 × 270mm
Weight
43kg
43kg
Communication
WLAN, RS485, Smart Dongle, MBUS
WLAN, RS485, Smart Dongle, MBUS
Long-term product support

10-year product warranty

Warranty coverage and eligibility depend on the applicable warranty terms, purchase date, installation date and product requirements.

View warranty conditions
Official product documents

Technical information and installation resources

Technical specifications 29.9kW and 40kW model data Product brochure Commercial inverter range overview User manual Installation, commissioning and maintenance

Specifications are subject to product configuration, applicable network requirements and change without notice. Refer to the current technical documentation when designing or installing the system.

Frequently asked questions

Commercial inverter
questions answered.

Understand model selection, solar-array capacity, monitoring, protection and installation requirements before planning a commercial solar system.

Professional system design

Every commercial site is different.

A qualified commercial solar professional can assess the site connection, network requirements, proposed array and appropriate inverter model.

Review specifications
01 Which inverter model is appropriate for the site?

Model selection depends on the electrical connection, proposed solar-array capacity, network approval, switchboard capacity, expected demand and project requirements. A qualified commercial solar professional should assess the site before recommending the 29.9kW or 40kW model.

02 How much solar-panel capacity can each model support?

The recommended maximum DC input is 44.85kWp for the 29.9kW model and 60kWp for the 40kW model. Final array capacity depends on string design, inverter limits, site conditions and applicable network requirements.

03 What does up to 150% recommended DC input mean?

It means the recommended maximum solar-array capacity can equal up to 150% of the inverter’s rated AC output. A professionally designed larger array can create more generation opportunity during mornings, afternoons and periods of lower solar irradiance.

Additional panel capacity does not increase the inverter’s rated AC output.

04 Can the inverter be installed outdoors?

The inverter has an IP66-rated enclosure for protection against dust and powerful water jets. The installation location, clearances, ventilation and environmental exposure must still comply with the current installation manual and applicable electrical requirements.

05 Can individual solar strings be monitored?

Yes. The inverter supports intelligent monitoring across eight PV string inputs. Available information and remote access depend on the installed communication hardware, meters, network connection and compatible monitoring platform.

06 What electrical protection is integrated?

Integrated features include arc-fault protection, DC reverse-polarity protection, residual-current monitoring, PV string-fault monitoring, anti-islanding protection and Type II-compatible surge protection for the DC and AC sides.

These features complement correct external protection, system design, installation and maintenance.

07 How is the inverter cooled?

The inverter uses natural-convection cooling and has a specified operating noise level below 46dB. Installation clearances and ventilation requirements must be followed to support effective thermal management.

08 What warranty applies to the inverter?

The commercial inverter range is supported by a 10-year product warranty. Coverage, promotional extensions and eligibility depend on the applicable warranty terms, installation date, purchase date and product requirements.

Review current warranty conditions

Ready to plan your commercial system?

Bring commercial solar
and intelligent control
together.

Speak with iStore about the 29.9kW and 40kW three-phase commercial inverter range and get connected with the right product information for your project.

Enquire about this range Review specifications
Prefer to speak with our team? 1300 552 619
3Φ Commercial three phase iStore 29.9kW and 40kW three-phase commercial inverter IS-INV-29900 / 40000-3PH
Output range 29.9 to 40kW
Solar capacity Up to 60kWp
Solar tracking 4 MPPT
PV connections 8 inputs

Australian owned Home energy product range

10-year warranty Subject to applicable terms

Local product support Knowledgeable Australian team

Professional system design Commercial assessment required

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