Specifications

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ADDENDUM FOR X20, X27, & X28 OPTIONS (XP600 AND XP1100)
GENERAL
The X20, X27, and X28 option provides for an alarm contact OR an AC transfer switch on
EXELTECH XP Series inverters. The alarm relay monitors the inverter’s AC output and
will energize the alarm contact when the inverter fails to produce AC.
The AC transfer switch can be configured in two ways (via jumpers)
1. Inverter as the primary source of AC power.
2. Utility as primary source of AC power.
CAUTION: “ ANY OPTION THAT USES TRANSFER SWITCH IS NOT
AUTHORIZED FOR USE IN LAND MOBILE APPLICATIONS ”
NOTE: All secondary AC power sources other than the inverter
will be referred to as
utility. A secondary source of AC power includes utility, “shore power”, generator, etc.
When the primary source of AC power fails, the transfer switch “switches” to its
secondary source of AC power in 50ms or less. When the primary source of power is
present again (turns back on), the transfer switch “switches” back to the primary source
of power in 50ms or less.