47
Appendix I: Parallel function
1. Introduction
This inverter can be used in parallel with three different operation modes.
1.
Parallel operation in single phase is with up to 6 units. The supported maximum output power for SP8000
Handy Ultra model is 48KW/48KVA. The supported maximum output power for SP6000 Handy Ultra model
is 39KW/39KVA.
2.
Maximum six units work together to support three-phase equipment. Maximum four units support one
phase.
3.
Maximum six units work together to support split-phase equipment only available for SP6000 Handy Ultra
model. 5 units support one phase maximum. The supported maximum output power is 39KW/39KVA and
one phase can be up to 32.5KW/32.5KVA.
2. Mounting the Unit
When installing multiple units, please follow below chart.
NOTE:
For proper air circulation to dissipate heat, allow a clearance of approx. 20 cm to the side and approx.
50 cm above and below the unit. Be sure to install each unit in the same level.
3. Wiring Connection
WARNING:
It’s REQUIRED to connect battery for parallel operation.
The cable size of each inverter is shown as below:
Recommended battery cable and terminal size for each inverter:
Model
Wire Size
Cable mm
2
Ring Terminal
Torque value
Dimensions
D (mm)
L (mm)
SP6000
Handy Ultra
1*2/0AWG
67
8.4
47
5 Nm
SP8000
Handy Ultra
1*2/0AWG
67.4
8.4
47
5 Nm
WARNING:
Be sure the length of all battery cables is the same. Otherwise, there will be voltage difference
between inverter and battery to cause parallel inverters not working.
Recommended AC input and output cable size for each inverter:
Model
AWG no.
Torque
SP6000 Handy Ultra
4 AWG
1.4~ 1.6 Nm
SP8000 Handy Ultra
8 AWG
1.4~ 1.6 Nm
You need to connect the cables of each inverter together. Take the battery cables for example: You need to use
a connector or bus-bar as a joint to connect the battery cables together, and then connect to the battery
Ring terminal: