Need understanding of Schneider conext 24v 4000 sw inverter.

offgridcabin2015offgridcabin2015 Registered Users Posts: 56 ✭✭
i found this statement 

Conext SW 3,400 watt 24VDC/120/240VAC Inverter

Important Information: The Schneider Electric SW inverters are rated for 240 Volts AC output. When powering 120 Volt devices, the inverter is not capable of delivering its full power output. The 4024-21 is capable of delivering a maximum of 2,550 Watts at 120 Volts AC.


My goal is to power my 2hp / 240vac Tablesaw Iwhich i currently do via gas gen. (no issues) doens't even fizz the gen . It has 9300 surge  7500 continuous .it's wired as 240.


Sadly i cannot afford 7200 cdn dollars / taxes in for the xw pro Schneider ugh  48v. 

sooooooooooooooooooo  . i'm worred that it sw -24 4000  wont' run my table saw. Is there  a way to know BEFORE i plunk done 2600.00 cdn + taxes for this inverter?


plz note thespecs say: 

  • Output Power: 3,400 Watts continuous, 4,000 Watts for 30 minutes
  • Surge Rating: 7,000 Watts for 5 seconds
so if one leg is at 110vac it only 2550watts how can i power 3400 continous watts? i'm so confused.

Plz help me understand this.

Neil. 

Comments

  • mike95490mike95490 Solar Expert Posts: 9,511 ✭✭✭✭✭
    Many inverters cannot handle a load imbalance of more than 50%
     you quoted " The 4024-21 is capable of delivering a maximum of 2,550 Watts at 120 Volts AC"

    So if your saw consumes less than 2,250 watts, you are fine

    The inverter surge ratings are listed for full 240VAC output, not a single leg.   The inverter can handle a slight overload for a short while, but a strong overload, only a few seconds.  This relates to how much heat the inverter can dissipate,

    Now I see your saw is a 240V saw. 2hp !  Somewhere on the saw, maybe the motor, will be an electrical nameplate listing the volts and amps the motor requires.   look for
    VA
    LRA
    watts
    volts
    amps
       ( VA = VoltAmps, an AC form of watts, LRA = LockedRotorAmps, which is the draw at a cold start )
    Write back with as many as you can find.

    PS  Most motors work best with a pure sine wave inverter, verify that the SW is sine wave, not modified sine
    Powerfab top of pole PV mount | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
    || Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
    || VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A

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  • offgridcabin2015offgridcabin2015 Registered Users Posts: 56 ✭✭
    edited January 5 #3
    Thanks mike. i'm at work and i will look for  name plate on this motor when i get home .
    The sw is 
    • 100% pure sine wave
  • MichaelKMichaelK Registered Users Posts: 221 ✭✭✭
    mike95490 said:

    PS  Most motors work best with a pure sine wave inverter, verify that the SW is sine wave, not modified sine
    Yes, I have the 4024 in my workshop.  It is sine-wave.

    System 1) 15 Renogy 300w + 4 250W Astronergy panels,  Midnight 200 CC, 8 Trojan L16 bat., Schneider XW6848 NA inverter, AC-Delco 6000w gen.
    System 2) 8 YingLi 250W panels, Midnight 200CC, three 8V Rolls batteries, Schneider Conext 4024 inverter (workshop)
  • PhotowhitPhotowhit Solar Expert Posts: 5,727 ✭✭✭✭✭
    offgridcabin2015 said:
    My goal is to power my 2hp / 240vac Tablesaw Iwhich i currently do via gas gen. (no issues) doens't even fizz the gen .
    I think it's a 'non problem'.

    As Mike said many inverters can't handle an unbalanced load or the max wattage on a single leg.

    With your table saw it runs on 240V so should be fine. 

    As to the '...doesn't fizz the gen." statement, you likely can't hear it when you are cutting up 3 thick hardwood over the saw...lol. Doubt at start up it would be much of a load.
    Home system 4000 watt (Evergreen) array standing, with 2 Midnite Classic Lites,  Midnite E-panel, Magnum MS4024, Prosine 1800(now backup) and Exeltech 1100(former backup...lol), 660 ah 24v Forklift battery(now 10 years old). Off grid for 20 years (if I include 8 months on a bicycle).
    - Assorted other systems, pieces and to many panels in the closet to not do more projects.
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