⚡ Mid-Range C&I Inverter

Sungrow

Sungrow SG40CX-P2

Name: Sungrow SG40CX-P2
Brand: Sungrow
Availability: InStock

40 kW Three-Phase 4-MPPT String Inverter

40 kW four-MPPT inverter — sweet spot for retail outlets, small factories and parking structures. 56 kWp PV oversizing handles bifacial and TOPCon modules, with full AFCI 2.0 and C5 anti-corrosion.

40 kW @ 45°C

Rated AC Power

98.5%

Max Efficiency

MPPTs

Request a Quote → Download Datasheet

Key Features

Why Engineers Choose the SG40CX-P2

Four datasheet-backed advantages for commercial & industrial solar projects.

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98.5% Peak Efficiency

Class-leading conversion efficiency with 98.3% European weighted efficiency. Multiple independent MPPTs minimize string-mismatch losses and maximize annual yield.

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4-MPPT Architecture

8 strings (4 × 2) maximize design flexibility across complex roof orientations and partial-shading conditions. MPP voltage range 160–1000 V accommodates bifacial and high-power modules.

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Integrated AFCI 2.0

Built-in arc fault circuit interrupter detects DC arc faults in milliseconds, dramatically reducing PV fire risk. IP66 enclosure rating for indoor and outdoor installation.

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IP66 Outdoor-Rated Enclosure

Operating temperature −30 °C to +60 °C with derating above 45 °C. Smart forced air keeps acoustic emissions low. Suitable for coastal and industrial environments.

Specifications

Complete Technical Datasheet

All parameters sourced from Sungrow's official SG40CX-P2 datasheet. Country-specific grid-code configurations available on request.

Rated AC Output Power	40 kW @ 45°C
Max. Efficiency / European	98.5% / 98.3%
Number of MPPTs	4
Strings Configuration	8 strings (4 × 2)
Max. PV Input Power	56 kWp
Max. DC Voltage	1000 V
MPP Voltage Range	160–1000 V
Max. Input Current	30 A per string
AC Output Voltage	3/N/PE, 230/400 V
Total Harmonic Distortion (THD)	<3%
Protection Rating	IP66
Operating Temperature	−30 °C to +60 °C
Max. Operating Altitude	4000 m
Cooling Method	Smart forced air
AFCI / Safety	AFCI 2.0
Weight	40 kg
Dimensions (W × H × D)	645 × 575 × 245 mm
Communication Interface	RS485 + optional WLAN / Ethernet
Monitoring Platform	iSolarCloud
Grid Code Compliance	EN 50549, AS/NZS 4777.2, VDE-AR-N 4105, G99, CEI 0-21, IEC 61727
Standard Warranty	5 yr (extendable 25 yr)

Applications

Where the SG40CX-P2 Fits Best

Optimized for commercial & industrial solar deployments.

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Industrial Rooftops

Factories, warehouses and logistics hubs with 100 kW – 5 MW rooftop PV arrays.

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Commercial Buildings

Offices, shopping centres and data centres with grid-code requirements.

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Hospitals & Healthcare

24/7 critical-load facilities benefiting from PV self-consumption and BESS pairing.

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Schools & Universities

Campuses with large flat roofs and daytime-aligned load profiles.

Frequently Asked Questions

What Engineers Ask About the SG40CX-P2

Datasheet-driven answers for procurement teams and PV designers.

What is the maximum efficiency of the Sungrow SG40CX-P2?

The Sungrow SG40CX-P2 has a maximum efficiency of 98.5% and a European weighted efficiency of 98.3%, placing it among the highest-efficiency inverters in its power class.

What is the warranty on the Sungrow SG40CX-P2?

The SG40CX-P2 comes with a standard 5-year manufacturer warranty, extendable to 10, 15, 20 or 25 years through Sungrow's official warranty extension program. Econo Solar handles warranty registration on your behalf and facilitates RMA service globally.

What certifications does the SG40CX-P2 have?

The SG40CX-P2 is certified to IEC 62109-1/-2, IEC 62116 and IEC 61727. It supports major global grid codes including EN 50549, AS/NZS 4777.2, VDE-AR-N 4105, G99 and CEI 0-21. Country-specific configurations available on request.

What is the maximum PV input power for the SG40CX-P2?

The SG40CX-P2 supports up to 56 kWp of PV input with a maximum DC voltage of 1000 V. The MPP voltage range is 160–1000 V, with 30 A per string maximum DC current — sufficient for current-generation bifacial and TOPCon modules.

How fast can Econo Solar deliver the SG40CX-P2?

Stock SKUs ship from Shanghai within 5–10 business days FOB Incoterms 2020. Non-stock or country-specific configurations require 4–8 weeks production lead time. Submit your RFQ and we will confirm stock status within 24 hours.