CENTROSOLAR AG
Stresemannstraße 163
22769 Hamburg
GERMANY
Tel.: +49 (0)40 3910650
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Solar
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red
green
blue
Output
= 6A, 60V
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Function of the cell-protector:
The purpose of the cell protector is to prevent overheating of the solar cells (risk of hotspot) when the solar module is partial
shaded. This is achieved by the diodes on the circuit board. By standard aluminium framed glass modules these diodes are
located in the junction box on the backside of the modules.
The bypass diodes can be damaged by power surges and lightning. By fitting into the cap any replacement would be impos-
sible. Therefore the bypass diodes at the M-Series modules are installed in the external cell-protector. Additionally a diode is
incorporated on the PC-board to prevent reverse current. Depending on the kind of connection, this protection can be used.
However, the Schottky diode produces a voltage drop of about 0.6V.
Connection graphics
Cell protector required only for modules with 3-wire connection cable!
12V: Parallel connection of 12V solar modules
Circuit diagram cell-protector V2.2
24V: Serial connection of 12V solar modules
12 V
12 V
12 V
12 V
12 V
12 V
12 V
12 V
12 V
Cell-
pr
otector
Cell-
pr
otector
Cell-
pr
otector
Cell-
pr
otector
Cell-
pr
otector
Cell-
pr
otector
Cell-
pr
otector
12 V battery system
24 V battery system
