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Part #MMS912E

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  • Low/high battery protection – If your battery voltage reaches below 10 VDC or above 17 VDC, the MMS-E Series will automatically shut down.
  • Versatile mounting – Mount the MMS-E Series on a shelf, wall, or even upside down.
  • Fan cooled – The MMS-E Series is fan cooled, enabling the unit to work well in confined spaces. If the inverter does exceed its temperature limits, it will automatically shut down and then restart when it cools down.
  • Current overload protection – The MMS-E Series will automatically shut down if its output wattage is exceeded or it detects a short in the wiring, saving the unit from costly damage.
  • Convenient switches – The MMS-E Series comes with an on/off front-mounted switch with an easy-to-read LED indicator.
  • Circuit breaker protection – This model comes with built in input and output circuit breakers for ease of installation.
  • Battery temp sensor – The standard battery temp sensor monitors temperatures from 0 - 50° C.
  • Buy with ease – The MMS-E Series is backed by a two-year (24-month) parts and labor warranty.


Input battery voltage 10 to 17 VDC
Nominal AC output voltage 230 VAC ± 5%
Output frequency and accuracy 50 Hz ± 0.1 Hz
Total Harmonic Distortion (THD) < 5%
1 msec surge current (amps AC) 30
100 msec surge current (amps AC) 7.5
5 sec surge power (real watts) 1600
30 sec surge power (real watts) 1250
5 min surge power (real watts) 1200
30 min surge power (real watts) 1100
Continuous power output at 25° C 900 VA
Maximum continuous input current 120 ADC
Inverter efficiency (peak) 87%
Transfer time (typical) ~ 20 ms
Search mode (typical) 0.4 ADC at 12.6 V
No load (230 VAC output, typical) 19 watts at 12.6V
Waveform Pure Sine Wave
Continuous output at 25° C 40 ADC
Charger efficiency 80%
Power factor > .95
Input current at rated output (AC amps) 3
Transfer relay capability 20 AAC (input current for charging and pass through)
Battery temperature compensation Yes, 4.6 m (15’) Battery Temp Sensor standard
Internal cooling 0 to 59 cfm variable speed
Overcurrent protection Yes, with two overlapping circuits
Overtemperature protection Yes, on transformer and MOSFETS
On/Off with status indicator Yes, front mounted and easily accessible
Low battery cutout 10 VDC, adjustable with the ME-RC remote
AC output/AC input Hardwire/Hardwire
Output circuit breaker/Input circuit breaker 7 A switchable/ 8 AAC
Listings Listed to CE
Warranty Two years
Temperature (Operating/Non-operating) -20° C to +60° C (-4° F to 140° F) to -40° C to +70° C (-40° F to 158° F)
Operating humidity 0 to 95% RH non-condensing
Mounting Shelf (top or bottom up) or wall (vents up)
Weight 10.4 kg (23 lb)
Shipping weight 11.8 kg (26 lb)
Max operating altitude 4570 m (15,000’)
Construction ABS plastic top and cast aluminum bottom
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