SAJ H2-5K-T2 User Manual

Hybrid Solar Inverter User Manual
19
20
Code
Name
Description
A
DC SWITCH
Direct current (DC) switch. You can turn it to OFF or ON
position.
B
PV1
PV input
C
PV2
PV input
D
BAT+, BAT-
Battery input
E
BMS/CAN, EMS/METER, DRMs
For communication with the BMS, meter, and DRM
F
RS485, Port0, Port1
⚫ RS485: Reserved for external communication.
⚫ Port0 and Port1: Parallel connection between
inverters.
G
4G/WIFI
4G, Wi-Fi, and Ethernet
H
BACK-UP
Backup loads
I
GRID
Grid
J
Grounding
4.3. Grounding
4.4. Assembling the AC-side Electrical Connection
4.4.1. Installing a Circuit Breaker
For safety operation and regulation compliance, install a 32A air circuit breaker between the grid and the
inverter.
By installing a circuit breaker, the inverter can be disconnected from the grid quickly and safely when the
integrated leakage current detector of the inverter detects that the leakage current exceeds the limitation.
4.4.2. Installing an RCD (optional)
An external residential current device (RCD) is not required since the inverter is integrated with a residential
current monitoring unit (RCMU). However, if the external RCD must be installed according to the local
regulations, either type A or B RCD can be installed with the action current 300 mA.
4.4.3. Connecting the Smart Meter
About this task
To buy a smart meter, contact SAJ for more details.
By using a SAJ-recommended smart meter, many functions can be implemented, such as the export limitation
function.
Connect the smart meter as shown below:
Note: If the length of the RJ45 cable between the inverter and the meter exceeds 20 meters, install a 120Ω
resistor in ports 24 and 25 on the meter.

SAJ H2-5K-T2 Specifications

General

Brand	SAJ
Model	H2-5K-T2
Category	Inverter
Language	English