ST300 - the smart one - Frequency inverter 230V and 400V
The compact ST300 series frequency inverter impresses with its design and is ideal for installation in switchgear. The possibility of side-by-side installation means that the usually limited space in switch cabinets can be utilised as effectively as possible. As the power is fed in from above, installation in large systems is particularly efficient. Alternatively, frequency inverters with a rated output of up to 4 kW can be mounted on a DIN 35 mounting rail using an adapter plate. The control cable is connected via terminals with push-in technology and is therefore particularly uncomplicated, quick and safe. Shield support plates at the top and bottom are available for EMC-compliant installation. Every frequency inverter in the ST300 series has the STO safety function (SIL3, PLe). The frequency inverter is suitable for TT, TN and IT systems. Parameterisation of the frequency inverter is extremely simple thanks to the carefully compiled German operating instructions. Sourcetronic also has an extensive range of frequency inverter accessories such as EMC filters, mains chokes and braking resistors.
Areas of application for the ST300 frequency inverter
A frequency inverter is always necessary if a drive is to be operated with a variable frequency. Large industrial machines, pump systems or compressors are just some of the applications for which a frequency inverter is the right choice.
- Input Frequency Range: 50 Hz / 60 Hz ( ± 5%)
- Output Frequency Range: 0 Hz - 599 Hz
- Voltage: 200 V(-15%) – 240 V(+10%)
- Side-by-side Mounting: Compact design requiring minimal space, easy installation in tight spaces
- Top Entry: Optimal integration into a control cabinet is possible with top entry
- Push-in Terminals: Control wiring terminals are push-in terminals, allowing for easy connection
- Shield Mounting Plates: Shielded cables can be mounted EMC compliantly on both the lower and upper sides
- STO: Each ST300 series frequency converter features the STO safety function (SIL3, PLe)
- German User Manual: A highly detailed German user manual is available for free download
- Premium technical support from experts, comprehensive user manual, and helpful FAQs
- Integrated C3 Filter, higher level possible simply via external filters
- Modbus RTU: The frequency converter features an RS485 interface with Modbus-RTU standard
- Adjustment options: Over 40 digital input functions, over 20 digital output functions, and over 20 analog output functions
- Input Frequency Range: 50 Hz / 60 Hz ( ± 5%)
- Output Frequency Range: 0 Hz - 599 Hz
- Voltage: 380 V(-15%) – 480 V(+10%)
- Side-by-side Mounting: Compact design requiring minimal space, easy installation in tight spaces
- Top Entry: Optimal integration into a control cabinet with top entry
- Push-in Terminals: Control wiring terminals are push-in terminals, allowing for easy connection
- Shield Mounting Plates: Shielded cables can be mounted EMC compliantly on the top and bottom
- STO: Every ST300 series frequency inverter features the STO safety function (SIL3, PLe)
- German User Manual: A highly detailed German user manual is available for free download
- First-class technical support from experts, comprehensive user manual, and helpful FAQs
- Integrated C3 filter, higher level possible simply via external filters
- Modbus RTU: The frequency inverter features an RS485 interface with Modbus RTU standard
- Adjustment options: Over 40 digital input functions, over 20 digital output functions, and over 20 analog output functions
Frequency inverter feature comparison - All Sourcetronic inverters in comparison
Features | ST150 | ST300 | ST500 | ST600 | ST600SP |
---|---|---|---|---|---|
Power Range/kW Voltage Range |
0.75 - 2.2 kW - 230 V | 0.75 - 7.5 kW - 230 V | 1.5 - 500 kW - 400 V | 4 - 55 kW - 400 V | |
0.75 - 2.2 kW - 400 V | 0.75 - 7.5 kW - 400 V | 0.75 - 710 kW - 400 V | |||
0.75 - 132 kW - 500 V | |||||
15 - 132 kW - 690 V | |||||
Control Mode | U/f Control | ||||
Vector Control without PG | |||||
Vector Control with PG | |||||
Number of Analog Inputs | 1 | 2 | 3 | 2 | |
Number of Analog Outputs | 1 | 2 | 1 | ||
Number of Digital Inputs | 5 (NPN) | 8 | 6 | ||
Number of Digital Outputs | 0 | 1 (NPN) | 2 (NPN) | ||
Number of Relay Outputs | 1 (Normally Closed Contact) | 2 (1 Changeover Contact, 1 Normally Closed Contact) | |||
Security Function | No | STO (SIL3, PLe) | No | STO (SIL2) | |
Control Panel | Non-removable | Removable | Non-removable | ||
Motor Types | Three-phase Asynchronous Motors | ||||
Synchronous Motors | Synchronous Motors | ||||
Communication | RS485 (Modbus RTU Protocol) | ||||
Profibus DP | |||||
CANopen | |||||
PROFINET | |||||
Ethernet/IP | |||||
Modbus TCP | |||||
Protection Class | IP 20 | IP 55 | |||
Built-in EMC Filter | C3 Filter | C3 Filter: Standard integrated from 5.5 kW, switchable from 15 kW (default setting: Off) | C3 Filter | ||
Motor Temperature Monitoring | No | PTC | |||
PT100 | PT100 with expansion card | ||||
PT1000 | PT1000 with expansion card | ||||
Possible Side-by-Side Mounting with Narrow Side Clearance | Yes | Yes, size-dependent | No | ||
Possible DIN Rail Mounting | Yes | With DIN rail adapter | For 230 V devices up to and including 2.2 kW For 400 V devices up to and including 4 kW |
No | |
Integrated Brake Unit | Yes | Up to 22 kW | Up to 37 kW | Yes | |
Special Features | Top Feed-in | Shield Support Plates | Expansion Options (Communication, I/O, Encoder Cards) | ||
Top Feed-in | Integrated Main Switch | ||||
Control Panel Potentiometer | No | Yes | Digital Control Panel Rotary Encoder | No | |
Display | 1-line 7-Segment Display | 2-line 7-Segment Display | Multilingual LCD Display | ||
Control Terminal Connection | Screw Terminals | Push-In Terminals | Screw Terminals |