SEM-E 50KW - Uncategorized Growatt - Free user manual and instructions

Product Type	Smart Energy Manager for solar and storage systems
Brand	Growatt
Model	SEM-E 50KW
System Size	50 kW
Normal Voltage	230/400 Vac
Voltage Range (L-L)	173–400 Vac
Grid Connection	3W/N/PE
Normal Frequency	50/60 Hz
Frequency Range	45–55 Hz / 55–65 Hz
Max CT Detection Current	150 A
Max Input Current (CT Secondary)	40 mA
CT Accuracy (@ rated current)	0.5%
CT Aperture	24 mm
Communication Interfaces	RS485, Ethernet
Maximum Number of Inverters	10 pcs
RS485 Communication Distance	500 m
Ethernet Communication Distance	100 m
Dimensions (W/H/D)	350 / 330 / 107 mm
Weight	6 kg
Operating Temperature Range	-25°C to -60°C
Cooling Method	Natural convection
Environmental Protection Rating	IP65
Relative Humidity Range	0–100%
Main Functions	Online monitoring, export limitation, management of multiple solar and storage inverters
Maintenance and Cleaning	No regular maintenance required; clean with a dry cloth if necessary
Safety	IP65 rated for outdoor use; electrical safety per local regulations
Spare Parts and Repairability	Contact authorized distributor for spare parts and repairs

Frequently Asked Questions - SEM-E 50KW Growatt

What is the Growatt SEM-E 50KW?

The Growatt SEM-E 50KW is a Smart Energy Manager designed to manage multiple solar and storage inverters. It provides online monitoring and export limitation for the whole system.

What is the maximum number of inverters that can be connected?

The SEM-E 50KW can manage up to 10 inverters simultaneously.

What communication interfaces does the SEM-E support?

It supports RS485 and Ethernet communication. The RS485 distance is up to 500 m, and Ethernet up to 100 m.

What is the voltage range for the SEM-E?

The device operates at a normal voltage of 230/400 Vac with a voltage range (L-L) of 173–400 Vac. Grid connection is 3W/N/PE.

What are the dimensions and weight of the SEM-E 50KW?

Dimensions are 350 mm x 330 mm x 107 mm (W/H/D), and it weighs 6 kg.

Is the SEM-E suitable for outdoor installation?

Yes, it has an IP65 environmental protection rating, making it suitable for outdoor use. Operating temperature range is -25°C to -60°C.

How do I connect the current transformers (CTs)?

The CTs must be installed around the mains cables. The maximum detection current is 150 A with a CT aperture of 24 mm. Ensure correct polarity for accurate measurement.

What does online monitoring allow me to do?

Online monitoring lets you check real-time energy production and consumption, manage export limitation settings, and view system performance remotely via the Growatt monitoring platform.

How do I configure export limitation?

Export limitation can be set through the device's web interface or the monitoring platform. The SEM-E uses CT data to control inverter output and limit power export to the grid.

What maintenance is required for the SEM-E?

Minimal maintenance is required. Keep the unit clean and free of dust. Check connections periodically. For any faults, contact your Growatt dealer for service.

USER MANUAL SEM-E 50KW Growatt

Smart Energy Manager (SEM-E)

• Manage multiple solar and storage Inverters
  • Online monitoring and export limitation for the whole system
• Flexible CTs for different project size
  • RS485 and Ethernet connection

POWER

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ROWATT

Datasheet	Smart Energy Manager (SEM-E)
System Size	50KW 100KW
Meter data
Normal voltage	230/400Vac
Voltage range(L-L)	173~400Vac
Grid connection	3W/N/PE
Normal frequency	50/60 Hz
Frequency range	45~55Hz/55-65 Hz
CT data
Max.current CT detection ( )	150A	250A
Max. input current (CT sencond side)	40mA
Accuracy (@ rated CT current)	0.5
CT aperture	24mm
Communication
RS485	Yes
Ethernet	Yes
Max.inverter number	10 pcs
Communication distance	RS485: 500mInternet cable: 100m
General Data
Dimensions (W/H/D)	350/330/107mm
Weight 6kg
Operation temperature range	-25°C ... +60°C
Cooling concept	Natural Cooling
Environmental Protection Rating	IP65
Relative humidity	0~100%
CE