Durite 100 amp solid state battery guard with provision for external on/off switch and override switch 12/24 volt 100 amp Solid State Battery Guard. Protected to IP65. Length 124mm x width 97mm x height 51mm. ECE and CE approved. Monitors the battery voltage and disconnect load when the battery voltage reaches a pre-determined level. The voltage level at which this device operates to disconnect or re-connect the load to the battery can be set to one of 10 different programmes by the installer using a simple bridge and integral LED indicator. The unit also has an alarm circuit to power an audio and/or visual indicator to warn of imminent disconnect, allowing the operator 50 seconds to rectify the situation before disconnecting. A 10 second delay is built in prior to an alarm,to prevent spurious warnings. The alarm circuit is limited to 500mA maximum. If a higher current is required, a relay with a diode must be used. Quiescent current is below 10mA for all versions. Appropriate terminals and insulating covers are provided with each unit. Pre-programmed voltage settings: 12 volt: 24 volt: Disc/Connect: Disc/Connect: 10.5v 12.0v 21.0v 24.0v 10.0v 11.5v 20.0v 23.0v 9.5v 11.5v 19.0v 23.0v 11.0v 13.5v 22.5v 26.5v 11.5v 13.5v 23.0v 27.5v 10.5v 12.5v 21.0v 25.0v 11.5v 12.5v 23.0v 25.5v 11.0v 12.5v 23.5v 25.5v 12.0v 13.0v 24.0v 26.0v 10.0v 13.0v 20.0v 26.5v