Siemens
Siemens MICROMASTER 440 Variable Frequency Drive
Siemens MICROMASTER 440 Variable Frequency Drive (VFD)
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12-Mo Warranty
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🎖 Veteran-Owned
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12-month warranty
All units tested
Same-day dispatch
Order by 2pm CST
Worldwide delivery
US, EU, Asia, Middle East
Veteran-owned
CAGE: 9NK75
Constant Torque Operation
1.1 kW Power Output
200-240V Input
IP20 Enclosure
Square-law Torque Capable
High Overload Capability
Product description
The Siemens 6SE6440-2UC21-1BA1 is a MICROMASTER 440 variable frequency drive (VFD) designed for constant torque applications. It operates on a 200-240V, 1/3 AC input and delivers 1.1 kW of power.
This VFD is suitable for a wide range of industrial applications, including conveyor systems, pumps, and fans, where precise speed control is required. Its IP20 rating makes it suitable for installation in control cabinets.
Stanlo Automation, a veteran-owned business, offers this Siemens VFD and a vast inventory of surplus industrial automation parts. We provide reliable solutions and competitive pricing to keep your operations running smoothly.
Technical specifications
| Manufacturer | Siemens |
| Series | MICROMASTER 440 |
| Part Number | 6SE6440-2UC21-1BA1 |
| Power | 1.1 kW (1.5 HP) |
| Input Voltage | 200-240V AC 1/3 Phase |
| Input Frequency | 47-63 Hz |
| Output Voltage | 240V AC 3 Phase |
| Output Frequency | 0-650 Hz |
| Overload | 150% for 60s, 200% for 3s |
| Enclosure | IP20 |
| Dimensions | 202 x 149 x 172 mm (HxWxD) |
| Ambient Temp | -10 to 50 °C |
Common applications
Conveyor Systems
Pump Control
Fan Control
Extruders
Textile Machinery
Food Processing
Compatible systems
Compatible with various motor types and control systems requiring variable speed control.
Also known as
MICROMASTER 440
VFD
Frequency Inverter
Replaces / compatible with
This model is a direct replacement for earlier MICROMASTER 440 units with similar specifications. Check documentation for specific upgrade paths.
Technical note
Expert tip
Ensure proper ventilation within the control cabinet, as the unit's IP20 rating requires it to be protected from dust and foreign objects.What happens next?
1
Email confirmation
Immediate receipt acknowledgment sent to you
2
Account manager assigned
Confirms your part's spec and condition
3
Your quote delivered
Tailored to your specific requirements
Frequently asked questions
What is the overload capability of the Siemens 6SE6440-2UC21-1BA1?
The Siemens 6SE6440-2UC21-1BA1 MICROMASTER 440 VFD can handle a high overload capability of 150% of its rated current for 60 seconds, and 200% for 3 seconds. This allows for short-term power surges without tripping.