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4. INSTALLATION
PV Module Connection
CAUTION: Before connecting to PV modules, please install separately a DC circuit breaker between inverter
and PV modules.
NOTE1: Please use 600VDC/30A circuit breaker.
NOTE2: The overvoltage category of the PV input is II.
WARNING: Because this inverter is non-isolated, only three types of PV modules are acceptable: single
crystalline and poly crystalline with class A-rated and CIGS modules.
To avoid any malfunction, do not connect any PV modules with possible current leakage to the inverter. For
example, grounded PV modules will cause current leakage to the inverter. When using CIGS modules, please
be sure NO grounding.
CAUTION: It's requested to use PV junction box with surge protection. Otherwise, it will cause damage on
inverter when lightning occurs on PV modules.
Please follow the steps below to implement PV module connection:
Step 1: Check the input voltage of PV array modules. The selected PV modules should be within following
parameters.
Max. PV Array Open Circuit Voltage
PV Array MPPT Voltage Range
CAUTION: Exceeding the maximum input voltage can destroy the unit! Check the system before wire
connection.
Step 2: Disconnect the AC input circuit breaker and BMS switch OFF to keep the unit completely OFF.
Step 3: Assemble provided PV connectors with PV modules by the following steps.
Components for PV connectors and Tools:
Female connector housing
Female terminal
Male connector housing
Male terminal
Crimping tool and spanner
INFOSEC UPS SYSTEM - 15, rue du Moulin - 44880 Sautron - FRANCE - www.infosec-ups.com Hot Line –
Tel + 33 (0)2 40 76 15 82 - Fax + 33 (0)2 40 94 29 51 - hotline@infosec.fr – 10 24 AA 59 203 08
MODEL
1.2KW
2.5KW
350Vdc
450Vdc
60~300Vdc
60~400Vdc
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