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IT1600-SERIES IT1600 - DC/AC Industrial Sinewave Inverter

  • Input voltage: 20-800Vdc or 115/ 230Vac. 1ph
  • 47-400Hz or 200/ 400/ 480Vac. 3ph. 47-400Hz
  • Output voltage: 115/ 230 Vac. 1ph or 200/ 400/ 480Vac. 3ph. Sine Wave
  • Output frequency: 50/ 60/ 400/ 800Hz (crystal stabilized) or programmable within 40-400Hz or 400-800Hz
  • Output power: 200VA - 5kVA
  • 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

IT1600 - DC/AC Industrial Sinewave Inverter


Input voltage

20-800Vdc or

115/ 230Vac, 1ph, 47-400Hz or

200/ 400/ 480Vac, 3ph, 47-400Hz

See selection table

For Input Voltages 160 - 800Vdc, Contact Powerbox

Units will turn off with under or over input voltage.

No-load input
10 - 30W model (series dependent)
Inrush current for AC input and DC input >160V: limited by thermistor
Hold-up time

AC input: 10 ms typical

Input Options

i: Inrush current limiting

ie:Electronic inrush current limiting

sd: Reverse polarity protection for DC input by series diode

ad: Reverse polarity protection for DC input by anti-parallel diode


See selection table for details

Output voltage

1ph: 115Vac, 230Vac

3ph: 3x200Vac, 3x400Vac, 3x480Vac

See selection table

Output power

200VA up to 45KVA

See selection table

Line regulation 2% (±10%)
Load regulation

1% typical, 3% max,

load step 10-90%

Turn on rise time soft-start, 100ms typical
Waveform sine wave or any wave shape programmable by external signal
Frequency 40 – 800 Hz: adjustable or programmable or any fixed frequency (crystal stabilized)

3 % typical, 5 % @ 400 Hz,

7 % @ 40 – 400 Hz, 800Hz

Surge power 2 x nominal power for 1 s
Crest factor approx. 3
Power factor cos 0.7 inductive / capacitive

80 – 92 %

Output Options

red: Inverter parallel operation: for IT5xxx

h1: Inhibit by external closing contact, signal referred to input

h2: Inhibit by voltage signal, signal referred to output

h3: Inhibit by closing contact, signal referred to output

See selection table for further details

Signal Options

pr: Input voltage supervision (power ok) incl. relay contacts

ac: AC ok for inverter including relay contacts

See selection table for further details

Overload protection current limited to approx. 1.05 x nominal current (steady state)
Short circuit protection electronically limited to 3 x nominal current, unit switches off after 1s

120Khrs at 40°C

acc. to MIL-HDBK-217E (notice 1)

Operating temperature

-20°C to +75°C

(optional -40 to 75C)

Load derating Derate 2.5% per °C, from +55°C to 75°C
Storage temperature -40°C to +85°C

H: Heatsink - natural convection

TF: Temperature controlled Fan included

See selection table

Humidity Up to 95% RH, non-condensing
Environment Options

t: Tropical protection

c: Extended temperature range

ms: Increased mechanical strength

See selection table for further details


acc. to EN 61000-6-2

Safety / Construction acc. to EN60950-1 / EN50178
Protection category

IP20 acc. to EN60529

NEMA or others on request

EMI standards acc. to EN61000-6-4 class A, optionally class B

Rack Mount and Wall Mounting

See technical illustrations

Dimensions and weight See Technical illustration

Selection Table


20 - 32







40 - 64



50 - 80







80 - 160












IT1626 0.2 A   IT1636 IT1646 0.4 A   IT1656   0.5 A     H   115
        IT3636 IT3646 0.5 B   IT3656   1 B     H   115
                  IT3856   1.2 C     H   115
        IT4836 IT4846 1.2 D   IT4856   2 D     H   115
        IT5636 IT5646 2 E   IT5656   3 E     TF   115
        IT5736 IT5746 3 E   IT5756   5 F+T1     TF   115
IT1628  0.2  A   IT1638 IT1648  0.4 A   IT1658   0.5 A     H   230
        IT3638 IT3648  0.5 B   IT3658   1 B     H   230
                  IT3858   1.2  C     H    230
         IT4838 IT4848  1.2    IT4858   2     H    230
        IT5638 IT5648 2 E   IT5658   3  E     TF    230
        IT5738 IT5748 3 E   IT5758   5  F+T1     TF    230


H: Heatsink - natural convection

TF: Temperature controlled Fan included


Input Voltages

For Input Voltages 160 - 800VDC,   Contact Powerbox



For Sizes A to L,  see Technical Illustrations




Model designation options:

Add the designation of options to the model number, eg. C3660-dd-dr-cs

Options for Input, Output, Environmental and Mechanical follow.

19" Rack Mounting Options

Subrack Height 3U, 5U, 6U

Wiring, Front Panels

Accessories: Fuses, MCBs, Mains on/off switch

Contact Powerbox for rack configuration

Option “i” (inrush current limiting): A thermistor is connected in series with the input lines which changes its resistance from high to low when it gets hot. It does not reduce the current surge if the input power is interrupted for a short period of time not allowing the thermistor to cool down. Thermistors are fitted as standard to all mains input models except for 1-phase input of models > 2.5kW. Thermistors are available up to 45A. For higher input current an electronic inrush current limitation can be offered.
Option “ie” electronic inrush current limiting An electronic circuit limits the inrush current.
Option “sd” (series diode): A series diode protects the module against input voltage of wrong polarity (additional power losses).
Option “ad” (anti-parallel diode): To avoid the power losses of a series diode a diode is provided with opposite polarity in parallel to the input blowing an internal or external fuse if the module is connected to a supply with wrong polarity.
Option “au” (auto-ranging) For standard dual AC input models the range of 115/230Vac is to be selected by connecting the input line to different pins on the connector. With auto-ranging the unit senses the input voltage and provides automatically the correct connection.
Option “p” (power fail): A signal (logic or relay) is given if the input voltage (AC or DC) drops below the specified limit. In AC input units we sense the rectified input voltage so that a power fail alarm will not be triggered if at light loads mains power returns before the input capacitors are substantially discharged.
Option “r” (relay): A relay instead of a logic signal is provided for failure indication.
output options
Option “dd” (decoupling diode): For redundant operation the outputs of two or more units are paralleled behind de-coupling diodes so that an internal fault of one module does not affect the operation of the others. These diodes cause power losses.
Option “cs” (active current sharing): An additional control circuit provides active current sharing via an interconnecting wire between converters that operate in parallel. Active current sharing should be used for multi-output units operating inparallel.
Option “csi” (current sharing interrupt): Option "csi" will effect the removal of the "cs" signal. Should there be an instance where a unit is not supplying the load, then the effect of its "cs" signal is removed, and the load voltage is unaffected by this condition.
Option “h1” (inhibit): A terminal connected to the negative input line also shuts off the converter. This can also be used in conjunction with a thermal trip which shuts the unit down.
Option “h2” (inhibit): Operation of the unit is inhibited if a voltage signal (5V/10mA) is applied in reference to the negative line of the (main) output.
Option “rco” (reducing current limiting at over temperature) A circuit reduces the current limiting level at higher temperature (to be specified).
Option “d” (DC-ok, one output): A logic signal is given if the output voltage (main output in multi-output systems) is below the specified limit.
Option “m” (DC-ok, all outputs): In multi-output systems a logic signal is provided if the voltage of any output is below the specified limit.
Option “ac” (AC ok) A logic signal connected to relay contacts is given if the output voltage of an inverter is below the specified limit.
Option "y" (sys-reset): This logic signal is a combination of power fail and DC-ok as specified for VME systems.
Option "r" (relay): A relay instead of a logic signal is provided for failure indication.
environment options
Option "t" (tropical protection):The unit is given additional protection by a heavy
coat of varnish on the printed circuit board(s) and components.
Option "c" (extended temperature range):The circuit is designed and tested for
operation at an ambient temperature as low as –40 °C.
Option "ms" (increased mechanical strength): Screws are secured by Locktite and
heavy components are fastened by ties and/or glue. Modules with the "ms" option
meet the standard EN61373 regarding shock and vibration.
mechanical options
Standard mounting "Eurocassette" pluggable module for 19" sub-racks
Option "w" (wall mounting): Module is screwed against a mounting plate for
installation in a cabinet. The load connections are typically a terminal block.

Technical Illustration

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