Schaefer Series IT User Manual

Page 3

www.schaeferpower.de

1 or 3-Phase Output from 200VA to 45kVA, switchmode

Inverters

Series IT - Inverters with 1-phase output

from 200 VA to 15 kVA

Page 89

DC/AC Inverters

is a combination of a switch mode Inverter and a Transformer at the output. The
transformer provides the isolation between input and output and transforms
the voltage to the required level.

AC output

DC input

Inverter Transformer

AC/AC Frequency Converters

is a combination of a switch mode Inverter with a rectiﬁer at the input and
a Transformer at the output. The transformer provides the isolation between
input and output and transforms the voltage to the required level.

AC output

AC input

Inverter Transformer

For lower input voltages the CI version is more compact than the IT version.

Series CI - Inverters with 1-phase output

from 400 VA to 3.5 kVA

Page 91

DC/AC Inverters

is a combination of a switch mode Converter and Inverter. The converter
provides the isolation between input and output and transforms the voltage to
the level needed by the inverter for supplying the speciﬁed AC output voltage.

AC output

DC input

Converter Inverter

AC/AC Frequency Converters

AC output

AC input

Converter Inverter

Series IV - Inverters with 3-phase output

from 600VA to 45 kVA

Page 93

DC/AC or AC/AC

AC output

DC or
AC input

3 x Inverter

3-phase

3 x Transformer

is a combination of 3 individual switch mode inverters with output transformers
synchronized for a symmetrical 3-phase output. The transformers provide the
isolation between input and output and transform the voltages to the required
levels.

Series SS

from 800 VA to 10 kVA

Page 97

Static Switches

The Static Switch has two inputs for load supply, a priority and a non-priority
input, and synchronizes the frequency of one supply to the other. Typically, but
not exclusively, supplied by Mains & an Inverter, there are 3 modes of operation:
1. Service mode Mains - mains is selected as the load provider.
2. Service mode Inverter - inverter is selected as the load provider.
3. Automated function with priority selection.

AC output

AC supply 1

AC supply 2

static switch

1-phase

Series U

from 1 to 2.5 kVA

Page 99

UPS Systems with Static Switch

provides uninterrupted AC power to a critical load by connecting the load to
AC supply 1 which can be the inverter output or to AC supply 2 which can
be the mains. Series U does not include the batteries. The batteries can be
speciﬁed and both, batteries and charger can be added to the system.

AC mains

Static Switch

Bypass Switch

AC output

(Load)

Inverter

Battery

Connectors

for Series CI, IT, IV & SS

Page 132

Mechanics

Series CI

Series IT

Series IV

Series SS

Series U

Eurocassette

H15 & high currrent connector for I >50 A

H15 and F24H7

H15 and F48

Wall mount or 19“ unit

Terminals