Function
MGE UPS SYSTEMS developed
Pulsar STS to guarantee the uninterrupted
operation of your sensitive equipment. The
Pulsar STS source transfer switch is a
simple and effective solution to manage the
redundancy provided by two independent
power sources.
Pulsar STS handles the automatic or
manual transfer of your loads between two
independent power sources without
interrupting the supply of power (< 6
milliseconds). Either of the two sources may
be designated as the preferred source with
the other becoming the alternate source. In
the event of a failure, transfer from one to
the other is automatic and instantaneous.
Automatic transfer to the alternate source
takes place if the voltage of the preferred
source goes outside a tolerance of 12%
above or below the nominal value. Return to
the preferred source is automatic when the
voltage returns within the ±12% tolerance
range.
To provide a maximum level of protection for
the connected sensitive equipment, both
power sources should be UPSs (on-line or
off-line) providing a sinusoidal output.
However, the Pulsar STS module can also
be supplied by one UPS and another type of
source (AC system, engine generator set,
etc.), or by two non-UPS sources.
Characteristics
The Pulsar STS module has the following
characteristics:
208 / 220 / 230 / 240V versions (input
voltage): Pulsar STS 10 and
Pulsar STS 16,
120 V version (input voltage):
Pulsar STS 1400,
input current: 10A (Pulsar STS 10),16A
(Pulsar STS 16), 12A (Pulsar STS 1400),
protection by thermal circuit breakers
(10A, 16A or 12A depending on the version),
threshold before transfer from preferred to
alternate source: ±12%,
maximum operating temperature: 35°C,
dimensions: 1U x 19 inches (44.45 mm x
482.6 mm);
weight: 5 kg.
MGE UPS SYSTEMS - 5102761700/AC
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