ANMA System Building

category	inverters
ean	UNKNOWN
generation	CX 1st generation (superseded by CX-P2)
grid_type	TN / TT
hardware_revision	UNKNOWN
legacy_name	UNKNOWN
manufacturer	Sungrow
manufacturer_legal_entity	Sungrow Power Supply Co., Ltd.
market_version	UNKNOWN
model	SG40CX
mpn	UNKNOWN
order_code	UNKNOWN
phase_configuration	three-phase (3 / N / PE)
product_family	SG33CX / SG40CX / SG50CX (CX 1st-generation commercial multi-MPPT string inverter)
product_status	superseded
product_status_detail	superseded - the official 2026 sungrowpower.com string-inverter index lists only the CX-P2 models in this power class
product_status_evidence	official product index fetched 2026-09-03
region	IEC / EU
release_year	2019 or earlier (datasheet V1.21 dated 2019-06)
sku	UNKNOWN
subcategory	grid-tied PV string inverter (three-phase commercial, no battery interface)
topology	transformerless (no galvanic isolation)
variant_note	Do NOT collapse with SG40CX-P2: the 1st generation uses 250 V startup, a 200-1000 V MPPT range, 26 A per MPPT, MC4 (not Evo2) connectors, DC Type II (not Type I+II) SPD, and a different MPPT count for the same power rating.

dc_ac_ratio	UNKNOWN
european_efficiency_pct	98.3
grid_frequency_range	45 Hz - 55 Hz / 55 Hz - 65 Hz
max_ac_power_w	44000
max_apparent_power_va	44000
max_dc_short_circuit_current_total_a	160
max_dc_voltage_v	1100
max_efficiency_pct	98.6
max_input_current_per_input_a	UNKNOWN
max_input_current_per_mppt_a	26
max_input_current_total_a	104
max_output_current_a	66.9
max_pv_input_power_w	UNKNOWN
max_short_circuit_current_per_mppt_a	40
min_operating_voltage_v	200
mppt_voltage_max_v	1000
mppt_voltage_min_v	200
mppt_voltage_range_for_nominal_power	550 V - 850 V
night_power_consumption	<= 2 W
nominal_dc_voltage_v	UNKNOWN
nominal_frequency	50 Hz / 60 Hz
nominal_voltage	3 / N / PE, 230 / 400 V
num_mppt	4
num_pv_inputs	8
oversizing_guidance	UNKNOWN
power_factor_range	> 0.99 default; 0.8 leading - 0.8 lagging
rated_ac_power_note	'Rated AC output power 40 kVA @ 45 C, 400 V'
rated_ac_power_w	40000
rated_output_current_a	UNKNOWN
recommended_pv_power_w	UNKNOWN
startup_voltage_v	250
string_rules	4 independent MPPTs, 2 PV strings per MPPT (8 strings total)
strings_per_mppt	2
thd	< 3 %
voltage_range	312 V - 528 V

bluetooth	yes (Bluetooth + APP commissioning)
can	none documented
communication_label	RS485 / optional Wi-Fi, Ethernet; Bluetooth
display	LED / Bluetooth + APP
ethernet	optional
isolarcloud_dependency	iSolarCloud for monitoring; no local-operation dependency stated
local_communication	RS485
logger_support	UNKNOWN
modbus_rtu	UNKNOWN
modbus_tcp	UNKNOWN
register_map_availability	UNKNOWN
rs485	yes
wifi	optional (WLAN)
winet_support	yes - Compatibility List 4.3 lists WiNet-S/S2 for the SGxxCX/CX-P2 models (max. 1 device)

afci	not stated in the V1.21 datasheet protection row - UNKNOWN
anti_islanding	yes
dc_reverse_polarity	yes (DC reverse connection protection)
dc_switch	yes
grid_protection	grid monitoring; overvoltage protection
insulation_monitoring	PV string current monitoring yes
pid	PID recovery function yes
rcmu	leakage current protection yes
spd	DC Type II / AC Type II

grid_codes	['IEC 62109', 'IEC 61727', 'IEC 62116', 'IEC 60068', 'IEC 61683', 'VDE-AR-N 4105:2018']
note	the V1.21 extraction listed these plus unresolved 'others'

extension_options	UNKNOWN
note	no warranty statement appears in the fetched datasheet extraction
standard_warranty	UNKNOWN

compatibility-list Sungrow Compatibility List Public 2026 (Version 4.3) rev 4.3

product-page Sungrow string inverter product index (official website) rev UNKNOWN

Recorded verbatim from the source; no schema field exists for these yet.

identity.product_status	superseded - the official 2026 sungrowpower.com string-inverter index lists only the CX-P2 models in this power class
manufacturer_legal_entity_as_printed	Sungrow Power Supply Co., Ltd.

Sungrow SG40CX