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Nominal voltage
Regulating principle
Final charge voltage
Solar charge regulator
consumption
Suitable batteries
Suitable solar modules
Calculation example
Operational temperature
Storage temperature
Humidity
822.212 MA / EN
Installation instructions for solar charge regulator LR 1218
7.2
Electrical data
12 V
pulse-width modulated series regulator charge curve (with solar module) IU
14.2 V living area battery (has priority)
14.2 V starter battery
approx. 4.5 mA (with solar module in the dark)
6-cell lead acid or lead gel batteries, rated 55 Ah or higher
Typ. 36-cell modules with the following properties:
Off-load voltage max. 25 V
F
Overall nominal current max. 18 A
F
Overall short circuit current max. 19 A
F
For example, five solar modules each rated at 55W can be connected in pa-
rallel:
Per solar module
Overall nominal current
7.3
Environmental parameters
-20 °C to +40 °C
-20 °C to +70 °C
Operation in dry environment only
8
Storage - Packaging - Transportation
Only transport and store the solar charge regulator if the packing is suitable
and ambient conditions are dry.
No part of this manual may be reproduced, translated or copied without ex-
E
press written permission.
U
= 22 V
0
I
= 3.2 A
nominal
I
= 16 A
nominal
Date: 22.09.2009
11
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