Siemens 6SE6440-2UC24-0CA1 MICROMASTER 440 4 kW Inverter
Unfiltered 200-240 V AC drive rated for 4 kW high-overload and 5.5 kW low-overload service.
01Technical Summary
Siemens 6SE6440-2UC24-0CA1 is the unfiltered 200 to 240 V three-phase version of the MICROMASTER 440 drive in the 4 kW high-overload class. It supports a 5.5 kW low-overload rating and provides configurable digital, relay and analog channels plus a motor-temperature input. Because this article has no integrated EMC filter, the external EMC design and exact installed option set are important selection boundaries.
02Specifications
| Manufacturer | Siemens |
|---|---|
| Article Number | 6SE6440-2UC24-0CA1 |
| Product Family | MICROMASTER 440 |
| Input Supply | 200 to 240 V AC, 3-phase, ±10% |
| Input Frequency | 47 to 63 Hz |
| Integrated Filter | None |
| High-Overload Rating | 4 kW / 5 hp |
| Low-Overload Rating | 5.5 kW / 7.5 hp |
| Output Current | 17.5 A high overload; 22.0 A low overload |
| Input Current | 19.7 A high overload; 28.3 A low overload |
| Pulse Frequency | 16 kHz |
| Control I/O | 6 digital inputs, 3 relay outputs, 2 analog inputs, 2 analog outputs |
| Motor Sensor Input | PTC / KTY input |
| Protection | IP20 |
03Features
Key Functions
- Unfiltered power-stage configuration for installations with separately engineered EMC measures.
- Provides distinct 4 kW high-overload and 5.5 kW low-overload ratings.
- Uses a documented 16 kHz pulse-frequency setting for this article data.
- Integrates flexible digital, relay and analog I/O for control and monitoring.
- Accepts PTC or KTY motor-temperature sensing.
- Supports the control and parameterization functions of the MICROMASTER 440 platform.
Identification
- Manufacturer: Siemens
- Model: 6SE6440-2UC24-0CA1
- Product Type: MICROMASTER 440 variable-frequency drive without integrated filter
- Status: Cancelled product; spare part
04Compatibility
- Use on a 200 to 240 V three-phase network and verify input protection and conductor sizing.
- Provide the external filtering, line reactor and EMC measures required by the complete installation.
- Match high-overload or low-overload current to the actual motor and load profile.
- Confirm terminals, frame size, airflow, braking hardware, operator panel and communication option.
- Restore only a verified parameter set for the exact machine and motor.
- Check shielding, grounding, cable routing and motor-cable length during commissioning.
05Replacement
- Siemens records the article as cancelled from 1 October 2019 and classifies it as a spare part.
- The Siemens migration reference is SIOS entry 109746454.
- Do not interchange filtered and unfiltered articles without reviewing the complete EMC design.
- Document motor data, I/O, protection, communication settings and every parameter before removal.
- Validate current, acceleration, deceleration, torque response, thermal protection, fieldbus control and machine safety after exchange.
06FAQ
Is 6SE6440-2UC24-0CA1 supplied with an integrated line filter?
No. Siemens identifies this exact version as a drive without an integrated filter.
What supply range is specified for this converter?
The input is 200 to 240 V AC, three phase, with a ±10% tolerance and 47 to 63 Hz frequency.
Which power levels correspond to its two duty classes?
It is rated at 4 kW for high-overload duty and 5.5 kW for low-overload duty.
What currents should be considered during selection?
The official data lists 17.5 A and 22.0 A output currents, with 19.7 A and 28.3 A input currents for the respective duty classes.
How large is the unfiltered 4 kW frame?
The published dimensions are 185 x 245 x 195 mm and the net weight is 5.5 kg.
What is the main replacement risk for this version?
A filtered drive should not be assumed equivalent; the external EMC components, cabling and installation design must be checked.
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