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The universal inverter for every challenge 


You need a frequency inverter which can be adap- ted to your individual requirements without any great effort? No problem for our MICROMASTER 420 - the universal inverter for 3-phase networks and optional field-bus connection. Thanks to its modular design, the extensive standard functions can be supplemented with a wide variety of op- tions. And you do not even need tools, as the operator panels and the communications modu- les can be simply plugged in. Screwless control terminals - as with the rest of the family - make terminal connection child's play.

Typical uses
Conveyor systems, material transport, pumps, fans, mechanical engineering.
MICROMASTER 440 - Technical data
Voltage and
power ranges
200–240 V, ± 10%, 1 AC, 0.12 to 3 kW (0.16 to 4 HP)
200–240 V, ± 10%, 3 AC, 0.12 to 5.5 kW (0.16 to 7.5 HP)
380–480 V, ± 10%, 3 AC, 0.37 to 11 kW (0.5 to 15 HP)
Operating temperature –10 °C to +50 °C
Process control Internal PI controller
Types of control FCC (Flux Current Control), multipoint characteristic (parameterizable V/f characteristic), V/f characteristic
Inputs 3 digital inputs, 1 analog input
Outputs 1 analog output, 1 relay output
to automation
The ideal partner for your automation needs, from connec- tion to SIMATIC S7-200 to integration in TIA with SIMATIC and SIMOTION.
Its strengths in brief
Compact housing
Easy to install
Highly versatile inputs and outputs
FCC control (Flux Current Control) for high drive quality, even when load changes occur
Different methods of commissio- ning, via operator panel or cost-free software tool
Modular system of inverter options
Parameterizable acceleration/ deceleration times (0 to 650 s)
Compound braking for controlled rapid braking
4 skip frequencies for minimizing stress on the machine when reso- nance occurs
Automatic restart
Minimal stress on motor when inverter connected to rotating motor
Prepared for use in IT networks
Integrated protection/overload func- tions
Available with or without integrated EMC filter
MICROMASTER 420 – the universal inverter with a wide variety of features for improved drive performance.

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