Inverter MICROMASTER 430 Drive Technologies – Siemens
Siemens MICROMASTER 430 is the ideal AC drive for pump and fan applications. The integrated PID and pump synchronization functionality make this a cost-effective solution for flow control applications. With advanced features like energy savings mode and customizable v/hz control mode that can be programmed to match pump and fan curves, the MICROMASTER 430 will improve your productivity while saving costs.
Standard Features
- Customized Operator panel for flow control applications
- PID process controller
- Integrated RS 485 communications
- Optional communication modules include PROFIBUS, CanOpen, DeviceNet™ communication
- Energy Savings Mode
- Bypass Mode
- Belt Break / Pump Dry Detection
- Configurable I/O
- Internal Logic Functionality
- Configuration and programming via keypad, STARTER, or DriveMonitor software
MICROMASTER 430

Siemens MICROMASTER 430 is the ideal AC drive for pump and fan applications. The integrated PID and pump synchronization functionality make this a cost-effective solution for flow control applications. With advanced features like energy savings mode and customizable v/hz control mode that can be programmed to match pump and fan curves, the MICROMASTER 430 will improve your productivity while saving costs.
Standard Features
- Customized Operator panel for flow control applications
- PID process controller
- Integrated RS 485 communications
- Optional communication modules include PROFIBUS, CanOpen, DeviceNet™ communication
- Energy Savings Mode
- Bypass Mode
- Belt Break / Pump Dry Detection
- Configurable I/O
- Internal Logic Functionality
- Configuration and programming via keypad, STARTER, or DriveMonitor software
Technical Information
Voltage and Power Ranges | 380-480 V, ± 10%, 3 AC, 10 to 300 HP (7.5 to 250 kW) |
Control Types | V / Hz, Voltage Boost, Slip Compensation, FCC (Flux Current Control) |
Standards | UL, cUL, CE, C-Tick |
Operating Temperature | 0 to +40 °C (+32 to +104 °F) |
Degree of Protection | IP20 |
Specialized Applications
- Pumps
- Fans
International standards
- The MICROMASTER 430 inverter complies with the requirements of the EU low-voltage guideline.
- The MICROMASTER 430 inverter has CE marking.
- Acc. to UL and c UL certified
- c-tick
Mechanical features
- Modular design
- Operating temperature: –10 °C to +40 °C (+14 °F to +104 °F)
- Compact housing as a result of high power density
- Easy cable connection, mains and motor connections are separated for optimum electromagnetic compatibility
- Detachable operator panels
- Screwless control terminals on detachable I/O board
SIEMENS MICROMASTER 430 TECHNICAL DATA
TECHNICAL DATA |
MICROMASTER 430 |
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Mains voltage and power ranges |
380 V to 480 V 3 AC ±10 % |
7.5 kW to 250 kW (variable torque) |
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Power frequency |
47 Hz to 63 Hz |
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Output frequency |
for inverter 7.5 kW to 90 kW |
0 … 650 Hz, (limitation to 550 Hz in production to comply with legal requirements) 1) |
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for inverter 110 kW to 250 kW |
0 Hz to 267 Hz |
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Power factor |
≥ 0.95 |
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Inverter efficiency |
for inverter 7.5 kW to 90 kW |
96 % to 97 % |
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for inverter 110 kW to 250 kW |
97 % to 98 % |
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(Further information is available on the Internet at: |
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Overload capability |
for inverter 7.5 kW to 90 kW |
Overload current 1.4 x rated output current (i.e. 140 % overload capability) for 3 s and 1.1 x rated output current (i.e. 110 % overload capability) for 60 s, cycle time 300 s |
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for inverter 110 kW to 250 kW |
Overload current 1.5 x rated output current (i.e. 150 % overload capability) for 1 s and 1.1 x rated output current (i.e. 110 % overload capability) for 60 s, cycle time 300 s |
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Inrush current |
less than rated input current |
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Control method |
linear V/f characteristic; quadratic V/f characteristic; multipoint characteristic (programmable V/f characteristic); flux current control (FCC); energy saving mode |
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Pulse frequency |
for inverter 7.5 kW to 90 kW |
4 kHz (standard) |
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for inverter 110 kW to 250 kW |
2 kHz (standard) |
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Fixed frequencies |
15, programmable |
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Skip frequency ranges |
4, programmable |
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Setpoint resolution |
0.01 Hz digital |
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Digital inputs |
6 fully programmable isolated digital inputs; switchable PNP/NPN |
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Analog inputs |
2 programmable analog inputs
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Relay outputs |
3, programmable |
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Analog outputs |
2, programmable (0/4 mA to 20 mA) |
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Serial interfaces |
RS-485, option RS-232 |
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Motor cable length |
for inverter 7.5 kW to 90 kW |
Without output choke |
max. 50 m (shielded) |
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With output choke |
See variant dependent options |
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for inverter 110 kW to 250 kW |
Without output choke |
max. 200 m (shielded) |
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With output choke |
See variant dependent options |
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Electromagnetic compatibility |
for inverter 7.5 kW to 90 kW |
Inverter with internal filter Class A available |
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for inverter without filter |
7.5 kW to 15 kW |
EMC filter Class B to EN 55 011 available as an option |
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18.5 kW to 90 kW |
EMC filter Class B from Schaffner available as an option |
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110 kW to 250 kW |
EMC filter Class A available as an option |
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Braking |
DC braking, compound braking |
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Degree of protection |
IP20 |
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Operating temperature range |
for inverter 7.5 kW to 90 kW |
-10 °C to +40 °C (+14 °F to +104 °F) |
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for inverter 110 kW to 250 kW |
0 °C to +40 °C (+32 °F to +104 °F) |
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Storage temperature |
-40 °C to +70 °C (-40 °F to +158 °F) |
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Relative humidity |
95 % (non-condensing) |
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Installation altitude |
for inverter 7.5 kW to 90 kW |
up to 1000 m above sea level without derating |
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for inverter 110 kW to 250 kW |
up to 2000 m above sea level without derating |
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Standard SCCR |
FSC: 100 kA |
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Protection features for |
undervoltage, overvoltage, overload, earth faults, short-circuits, stall prevention, locked motor protection, motor overtemperature, inverter overtemperature, parameter change protection |
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Conformity with standards |
for inverter 7.5 kW to 90 kW |
UL, cUL, CE, c-tick |
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for inverter 110 kW to 250 kW |
UL available soon, cULavailable soon, CE |
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CE marking |
Conformity with low-voltage directive 73/23/EEC |
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Cooling-air volumetric flow required, dimensions and weights (without options) |
Frame size (FS) |
Cooling-air volumetric flow required (l/s)/(CFM) |
H x W x D (mm) |
Weight, approx. (kg) |
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C |
54.9/116.3 |
245 x 185 x 195 |
5.7 |
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D |
2 x 54.9/2 x 116.3 |
520 x 275 x 245 |
17 |
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E |
2 x 54.9/2 x 116.3 |
650 x 275 x 245 |
22 |
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F without filter |
150/317.79 |
850 x 350 x 320 |
56 |
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F with filter |
150/317.79 |
1150 x 350 x 320 |
75 |
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FX |
225/478.13 |
1400 x 326 x 356 |
116 |
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GX |
440/935 |
1533 x 326 x 545 |
174 |
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CFM: |
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