© 2016 Sensata Technologies
Page 5
Introduction
Figure 1-3, Left Side Features (MS2012, MS2812, MS2024, MS4024, MS4048)
The left side of MS Series inverters are equipped with the following features (Figures 1-3 & 1-4):
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Exhaust Air Vents
– ventilation openings that allow heated air to be removed by the
internal cooling fan.
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Model/Serial Number Label
–
includes model/serial number information, date of
manufacture, and inverter and charger speci
fi
cations. See the MS speci
fi
cations
in
Appendix A for more information and a list of available models.
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AC Access Cover
– provides access to the internal AC wiring terminal block
(Figure 2-10). This terminal block is used to hardwire all inverter AC input and output
wiring connections. Remove the two screws to access the AC wiring terminal block.
Note:
The MS2000 models do not have the AC wiring terminal block.
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AC Input Circuit Breaker (CB3)
– this circuit breaker protects the unit’s internal
charger wiring and pass-thru relay while in Standby mode. The circuit breaker pops out
when it opens—press in to reset. The input circuit breaker is not branch-rated, therefore
branch-rated circuit breakers must be installed in the inverter’s input wiring.
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AC Output Circuit Breakers (CB1 & CB2)
– these circuit breakers are branch-rated
and are only available on models MS2000-15B, MS2000-20B, MS2012-15B, MS2012-
20B, and MS4048-20B. They allow the inverter AC loads to be connected directly to the
inverter’s output without requiring an inverter sub-panel. These circuit breakers pop out
when they open—press in to reset. They can also be manually pulled to disconnect the
inverter’s loads.
CAUTION:
Inverter models without the output circuit breakers (CB1 and CB2) must
have branch-rated circuit breakers installed in the inverter’s output wiring.
CAUTION:
The inverter’s internal AC transfer relay is rated for 30 amps per leg. The
pass-thru current must be no greater than 30 amps per leg or damage to the relays
may occur.
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15
17
16
AC Access Cover
Model/Serial
Number Label
AC Input Circuit
Breaker
AC Output Circuit Breakers
(only available on -15B,
-20B output breaker models)
Exhaust
Air Vents
(on back side
and on back
right side)
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