PV System Wiring

Sigen Hybrid is designed for residential rooftop on-grid solar systems. The on-grid solar system consists of PV strings, inverters, distribution panels, and other components.

No.	Description	No.	Description	No.	Description
A	PV panel	B	Sigen Hybrid	C	AC switch
D	AC distribution panel	E	Household loads	F	Power sensor
G	Power grid	H	mySigen	I	Router
J	Antenna	K	CommMod

• No more than 20 Sigen Hybrid units can be cascaded.

• The rated voltage of the AC switch connected to each Sigen Hybrid (2.0-6.0) SP2 series inverter must be ≥ 240 Va.c., and the recommended rated current specifications are:

  • Sigen Hybrid (2.0-4.0) SP2 series: Rated current is 25 A.

  • Sigen Hybrid (4.6-6.0) SP2 series: Rated current is 40 A.

• The rated voltage of the AC switch connected to each Sigen Hybrid (3.0-12.0) TP2 series inverter must be ≥ 415 Va.c., and the recommended rated current specifications are:

  • Sigen Hybrid (3.0, 4.0) TP2 series: Rated current is 10 A.

  • Sigen Hybrid (5.0, 6.0) TP2 series: Rated current is 16 A.

  • Sigen Hybrid (7.5, 8.0) TP2 series: Rated current is 25 A.

  • Sigen Hybrid (10.0, 12.0) TP2 series: Rated current is 32 A.

• If D (AC distribution panel) features leakage protection, it is recommended that the rated residual operating current be greater than or equal to the number of inverters × 100 mA.

• The distribution panel AC switch must have a rated voltage ≥ 240 Va.c. and rated current ≥ (Inverter maximum output current × Number of parallel units × 1.25)^[1]

• It is recommended to use Fast Ethernet and WLAN for communication with inverters. When free 4G traffic of CommMod runs out, users must top up their accounts or replace an SIM card.

Note [1]: The maximum output current of an inverter can be found in its respective data sheet.