Siemens 6SE6440-2UD31-1CA1 MICROMASTER 440 Inverter
Manufacturer: Siemens
Product Family: MICROMASTER 440 / MM440
Product Type: Variable Frequency Drive / Frequency Inverter
Order Number: 6SE6440-2UD31-1CA1
Filter Configuration: Without Integrated Filter
Input Supply: 3 AC 380–480 V ±10%
Line Frequency: 47–63 Hz
Rated Power, High Overload: 11.00 kW / 15.00 hp
Rated Power, Low Overload: 15.00 kW / 20.00 hp
Rated Input Current, HO: 23.10 A
Rated Input Current, LO: 33.80 A
Rated Output Current, HO: 26.00 A
Rated Output Current, LO: 32.00 A
Rated Output Voltage: 480 V
Pulse Frequency: 4,000 Hz
Output Frequency, V/f Control: 0–650 Hz; production limited to 550 Hz
Overload Capability, HO: 150% output current for 60 s, then 100% for 240 s in a 300 s cycle
Overload Capability, LO: 140% output current for 3 s, then 110% for 57 s, then 100% for 240 s in a 300 s cycle
Protection Degree: IP20 / UL Open Type
Cooling Method: Fan
Operating Temperature, HO: -10°C to +50°C
Operating Temperature, LO: -10°C to +40°C
Frame Size: FSC
Dimensions, W × H × D: 185 × 245 × 195 mm
Net Weight: 5.50 kg
Digital Inputs: 6
Relay Outputs: 3
Analog Inputs / Outputs: 2 / 2
PTC / KTY Interface: 1
- Band:Siemens
- Condition: Brand new / Original
- Stock: In stock
- Delivery: 3 - 7 days
- Warranty: 12 months
The Siemens 6SE6440-2UD31-1CA1 is an industrial MICROMASTER 440 frequency inverter rated at 11 kW in high overload operation and 15 kW in low overload operation. It is designed for three-phase 380–480 V drive systems where controlled motor speed and dependable operation are required.
This model retains the compact FSC enclosure used within the medium-power MM440 range while providing increased motor capacity for larger pumps, fans, conveying units, machine drives and plant maintenance requirements. It is particularly relevant when an existing machine requires a matching 6SE6440 order number to support continuity of the installed drive system.
To request pricing or replacement assistance, submit the full model number, motor details, required quantity and delivery country. For existing equipment, a nameplate image can help confirm the correct specification.

Q1: What are the HO and LO power ratings of 6SE6440-2UD31-1CA1?
A: This MM440 inverter is rated at 11.00 kW in high overload operation and 15.00 kW in low overload operation.
Q2: Is this model the same frame size as 6SE6440-2UD27-5CA1?
A: Yes. Both models use the FSC frame size with dimensions of 185 × 245 × 195 mm, but they have different power and current ratings.
Q3: What information should be confirmed before replacing an installed 11 kW MM440 drive?
A: Confirm the complete order number, motor power, duty type, wiring, mounting space and any operator-panel or communication requirements.
FAqS
Yes, all products supplied are brand new and original, with reliable quality for industrial automation applications.
Stock availability may vary depending on the model and order quantity. Please contact us for the latest inventory status.However, our inventory levels have consistently remained above ten million yuan.
Yes, we support international shipping to most countries and regions worldwide.
Yes, door-to-door delivery service is available through international express logistics partners.
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