Schaefer Series U - Manual (Page 2)

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Inverters 1 or 3-Phase Output from 200VA to 45kVA, switchmode
DC / AC Inverters, AC / AC Frequency Converters & Static Switches
■ Sine Wave
■ Continuous short circuit protection
■ Thermal shutdown with auto-restart for
1-phase inverters >1.2kVA
3-phase inverters >3.6kVA
■ Suitable for complex load
■ Surge power capability
■ Industrial grade components
■ Compact and robust design
■ 3-phase output: Unsymmetrical load permissible,
modular system with interchangeable inverters
■ Input voltage: 10-800V DC or
115/ 230V AC, single phase, 47-400Hz or
200/ 400/ 480V AC, three phase, 47-400Hz
■ Output voltage: 115/ 230 V AC, single phase
or 200/ 400/ 480V AC, three phases
■ Output frequency: 50/ 60/ 400/ 800Hz
(crystal stabilized) or programmable within
40-400Hz or 400-800Hz
■ Output power: 200VA - 45kVA
Features
Specifications
AC
or
DC
AC
Input
Voltage range unit switches off at under- and
overvoltage
No-load input power 10 – 30 W
Inrush current for AC input and DC input >160V:
limited by thermistor
Hold-up time AC input: 10 ms typical
Series CI: 20ms typical
Immunity acc. to EN 61000-6-2
General
Efficiency 80 – 92 %
Operating temperature – 20 to + 75°C
optional: -40 to +75°C
Load derating 2.5%/°C above + 55°C
Storage temperature -40 to + 85°C
Cooling
(details see page 131) = natural convection
= incl. temperature controlled fans
Humidity up to 95 % RH, non-condensing
Safety / Construction acc. to EN 60950-1 / EN 50178
Protection category IP20 acc. to EN 60529,
NEMA or others upon request
EMI acc. to EN 61000-6-4,
class A, optionally class B
MTBF @40°C acc. to
MIL -HDBK-217E (notice1) series IT:
120.000h
series CI:
70.000h
series IV:
50.000h
Output
Output voltages 115V AC 230V AC
3x200VAC 3x400VAC 3x480VAC
or any other
Output power from 200 VA up to 45k VA
Line regulation (±10%) 0.1 % for series CI,
2 % for series IT and IV
3 % for series IT and IV @ 400Hz
Load regulation (10-90%) 1 % typical, 3 % max.
(400 Hz: 3 % typical, 5 % max.)
Turn-on rise time soft-start, 100ms typical
Waveform sine wave or any wave shape pro-
grammable by external signal
Frequency 40 – 800 Hz: adjustable or
programmable or any fixed
frequency (crystal stabilized)
Distortion 3 % typical, 5 % @ 400 Hz,
7 % @ 40 – 400 Hz, 800Hz
Overload protection
(steady state) current limited to approx. 1.05 x
nominal current
Surge power 2 x nominal power for 1 s
Short circuit protection electronically limited to 3 x no-
minal current, unit switches off
after 1 s
Crest factor approx. 3
Power factor cos 0.7 inductive / capacitive
Options
Input
■ Inrush current limiting for DC input
■ Reverse polarity protection for DC input
■ Autoranging for 115 / 230 VAC input
■ Special circuit for 16.6Hz AC input
Output
■ Remote on / off (inhibit)
■ Static Switch (details see page 97)
■ Parallel operation for redundancy or increased power:
series IT5xxx
Signals
via relay contacts
■ Power ok (input)
■ AC ok (output)
Monitoring
of input / output voltage, current or frequency via
■ analog signal
■ interface card RS232 or CAN Bus (external)
Programming
of output voltage, current or frequency via
■ potentiometer
■ analog signal
■ interface card RS232 or CAN Bus (external)
Mechanics / environment:
■ 19” sub-rack for eurocassette, refer to page 121
■ Wall mount
■ Increased mechanical strength
■ Tropical protection
■ Extended temperature range to –40 °C
■ Temperature controlled fans for 19” units