Sungrow SG50CX User Manual

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DO terminal (fault output dry contact): The relay can be set to output fault alarms, and
user can configure it to be a normally open contact (COM＆NO) or a normally closed contact
(COM＆NC).
The relay is initially at the NC contact, and it will trip to another contact when a fault occurs.
When alarm occurs, signal status change will not be triggered.
Use LED indicators or other equipment to indicate whether the inverter is in the faulty state.
The following Figures show the typical applications of normal open contact and normaliy
closed contact:
5 Electrical Connection User Manual

Sungrow SG50CX Specifications

General

Max. DC Voltage	1100 V
MPPT Voltage Range	200 V - 1000 V
Max. Input Current per MPPT	26 A
Number of MPPTs	4
Rated AC Output Power	50 kW
Max. AC Output Current	76 A
Frequency	50 Hz / 60 Hz
Efficiency	98.6%
Start Voltage	200 V
Number of DC Inputs per MPPT	2
Max. AC Apparent Power	55 kVA
AC Voltage Range	310 V - 480 V
Power Factor at Rated Power	1
Adjustable Power Factor Range	0.8 leading - 0.8 lagging
THDi	< 3%
DC Switch	Yes
AC Surge Protection	Type II
DC Surge Protection	Type II
Protection Class	I
Cooling Method	Smart forced air cooling
Protection Degree	IP66
Protection Level	IP66
Operating Temperature Range	-25°C to +60°C
Humidity	0-100%
AC Output Voltage	3 / N / PE, 220 V / 380 V, 230 V / 400 V