Simons Voss Technologies SPEL Guide Abrégé page 46

6. Technical specifications for SREL
5.2. Backup battery
A discharged backup battery may lead to the internal clock
stopping in SmartRelays. We therefore recommend check-
ing the time on the clock at regular intervals. A backup bat-
tery will last for about ten years if the power supply to the
SmartRelay is not interrupted. This battery should be re-
placed on a periodical basis if SmartRelay draws on the
backup battery at regular intervals due to frequent power
failures.
NOTE
The backup battery must not be used if SmartRelay
is powered by a battery (SREL.BAT).
6. Technical specifications for SREL
Housing made of black
plastic: dimensions l x w x h
Installation
72 x 57 x 25.5 mm
Surface mount

Flush-mounted (box

with depth 70 mm -
observe insulation)
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