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Part #MMSA1012

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  • Waterproof Panel – The MMSA boasts a waterproof switch and LED panel for use in the most rugged territory.
  • Safe and Reliable – The MMSA Series Inverter/Charger is ETL Listed to the stringent requirements of UL/cUL 458 and CSA C22.2 #107.1-01 for mobile use.
  • Attractive Styling – The modern, hourglass case, paired with the die cast aluminum base combines form with function, creating an attractive unit that uses its base as a heat sink for superior high temperature operation.
  • Versatile Mounting – Mount the MMSA Series on a shelf, bulkhead (with DC terminals to the right), or even upside down.
  • Low/High Battery Protection – If your battery voltage reaches below 10 VDC or above 17 VDC, the MMSA Series will automatically shut down.
  • Fan Cooled – The MMSA 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 MMSA Inverter/Charger will automatically shut down if its output wattage is exceeded or it detects a short in the wiring, saving the unit from costly damage.
  • Integrated Programming – The MMSA Series comes with an on/off front-mounted switch with an easy-to-read LED indicator. And easily toggle through settings with the accessible DIP switch.
  • Battery Temp Sensor – Automatically adjusts the voltage set-points based on temperature for better charging performance and longer battery life.
  • Buy with Ease – The MMSA Inverter/Charger is backed by a two-year (24-month) parts and labor warranty.


Input battery voltage 9 to 17 VDC
Nominal AC output voltage 120 VAC ± 5%
Output frequency and accuracy 60 Hz ± 0.05%
Total Harmonic Distortion (THD) < 5%
1 msec surge current (amps AC) 38
100 msec surge current (amps AC) 21
5 sec surge power (real watts) 1650
30 sec surge power (real watts) 1600
5 min surge power (real watts) 1250
30 min surge power (real watts) 1200
Continuous power output at 45° C 1000 VA
Maximum continuous input current 133 ADC
Inverter efficiency (peak) 87%
Transfer time (typical) 16 msecs
Search mode (typical) 5 watts (with no remote)
No load (120 VAC output, typical) 22 watts (with no remote)
Waveform Pure Sine Wave
Continuous output at 45° C 50 ADC
Charger efficiency (peak) 84%
Power factor > 0.95
Input current at rated output (AC amps) 7
Transfer relay capability 20 AAC (input current for charging and pass through)
Battery temperature compensation Yes, with ME-BTS
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 or ME-ARC remote
AC output 15 amp GFCI outlet
AC input 3 ft AC cord
Output circuit breaker 15 AAC
Input circuit breaker 15 AAC
Listings ETL Listed to UL/cUL458, CSA C22.2 #107.1-01
Warranty Two years
Operating temperature -20° C to +60° C (-4° F to 140° F)
Nonoperating temperature -40° C to +70° C (-40° F to 158° F)
Operating humidity 0 to 95% RH non condensing
Dimensions (l x w x h) 16.6” x 8.4” x 6.75” (42 cm x 21 cm x 17 cm)
Mounting Shelf (top or bottom up) or bulkhead (DC terminals to the right)
Weight 24 lb (10.9 kg)
Shipping weight 25 lb (11.3 kg)
Max operating altitude 15,000’ (4570 m)
  • Emergency Vehicle Services
  • Marine Systems
  • RV Systems
  • Trucks