Voltage Switches... your suggestions?

Stone Mason
Stone Mason Registered Users Posts: 16 ✭
in Advanced Solar Electric Technical Forum #1
Im looking for a voltage switch for my 12v fridge.

Does anyone know if there is something like this on the market?
http://www.warlock.com.au/141209.htm

Im good with electrical but not electronics from scratch so not keen to tackle that project.

3 outputs set at different voltages would be great eg.

If running from say 120w-240w panel.

13v fridge turn on.
13.2v exhaust fan on.
13.4v small 60w inverter with phone chargers ipod charger etc.

Anyone have ideas?
· Share on Twitter

Comments

  • Cariboocoot
    Cariboocoot Banned Posts: 17,615 ✭✭✭
    #2
    Re: Voltage Switches... your suggestions?

    I don't know of any one unit with multiple outputs (e.g. three different activations programmable at different levels) but Voltage controlled switches/relay drivers aren't hard to find:
    http://www.solar-electric.com/volcon.html

    They cost a bit, though. Relays needed to handle high current, of course.

    There are also small charge controllers with Low Voltage Disconnects which could 'drop out' a device if battery Voltage went below the set level. These aren't meant to handle high current either.
    One example: http://www.solar-electric.com/ss-20l.html

    The high-end charge controllers like Outback FM60 have a programmable AUX function which can be used to turn on/off something according to user selectable parameters.

    Just some options to consider.
    · Share on Twitter
  • SolarT
    SolarT Solar Expert Posts: 49 ✭
    #3
    Re: Voltage Switches... your suggestions?

    It will work with Morningstar combination Relay driver and Tristar PWM or MPPT. It can control up to 4 relays. Use it the free Morningstar software MSView to configure your ON/OFF voltage.

    Relay driver
    http://www.solar-electric.com/moredr.html

    Tristar PWM controller
    http://www.solar-electric.com/trts12vochco.html

    Tristar MPPT controller
    http://www.solar-electric.com/motr60ampmps.html

    And relays. I used a switched relay outlet that Turn ON/OFF based on what the relay driver tell it to do. A switched oulet like Middle-Atlantic RLM-15 that connect charger when the MSView tells the relay driver to turn on.
    · Share on Twitter
  • Stone Mason
    Stone Mason Registered Users Posts: 16 ✭
    #4
    Re: Voltage Switches... your suggestions?

    Do you guys know if the sunsaver 10 with LVD is user adjustable?
    http://www.solar-electric.com/ss-10l.html
    · Share on Twitter
  • TheBackRoads
    TheBackRoads Solar Expert Posts: 274 ✭✭
    #5
    Re: Voltage Switches... your suggestions?
    Stone Mason wrote: »
    Do you guys know if the sunsaver 10 with LVD is user adjustable?
    http://www.solar-electric.com/ss-10l.html

    I don't believe so. Looks like your stuck with 11.5V disconnect and 12.6v reconnect (12V).
    · Share on Twitter
  • SolarT
    SolarT Solar Expert Posts: 49 ✭
    #6
    Re: Voltage Switches... your suggestions?

    3 equipment at 3 different voltages = relay controller
    13v fridge turn on.
    13.2v exhaust fan on.
    13.4v small 60w inverter with phone chargers ipod charger etc.
    · Share on Twitter
  • Stone Mason
    Stone Mason Registered Users Posts: 16 ✭
    #7
    Re: Voltage Switches... your suggestions?
    SolarT wrote: »
    3 equipment at 3 different voltages = relay controller

    Suggestions of an affordable one, its just really to run my fridge... 12v 4.5a
    · Share on Twitter

Categories