SIEMENS 6SE6440-2AD22-2BA1 Variable Frequency Drive – MICROMASTER 440 Series
Imagine a critical pump or conveyor line grinding to a halt mid-shift — not because of a mechanical failure, but because the drive controlling motor speed has failed and no replacement is on hand. In modern industrial facilities, the variable frequency drive is not a peripheral accessory; it is the nerve center of motor control. Without a reliable VFD like the SIEMENS 6SE6440-2AD22-2BA1, production lines stall, energy costs spike from uncontrolled motor starts, and maintenance teams face unplanned downtime that cascades across the entire operation. This is precisely why sourcing a genuine, tested unit matters.
The 6SE6440-2AD22-2BA1 is a member of the SIEMENS MICROMASTER 440 series — one of the most widely deployed general-purpose VFD platforms in global industrial automation. Rated at 2.2 kW for three-phase 200–240 V AC input, this compact drive is engineered for demanding variable-torque and constant-torque applications. The MICROMASTER 440 platform has earned its reputation across more than two decades of field deployment in automotive, water treatment, HVAC, material handling, and process industries worldwide, making it a benchmark product in the sub-5 kW drive segment.
Technical Specifications
- Manufacturer: SIEMENS AG
- Part Number / Order No.: 6SE6440-2AD22-2BA1
- Series: MICROMASTER 440 (MM440)
- Rated Output Power: 2.2 kW
- Input Voltage: 3-phase AC 200–240 V (±10%)
- Input Frequency: 47–63 Hz
- Output Frequency Range: 0–650 Hz
- Rated Output Current: 10.5 A
- Protection Class: IP20
- Control Mode: V/f, Flux Current Control (FCC), Sensorless Vector Control
- Communication: USS protocol via RS-485 (standard); PROFIBUS DP via optional module
- Braking: DC braking, compound braking, dynamic braking (with optional resistor)
- Ambient Temperature: -10°C to +50°C (operating)
- Weight: Approx. 3.2 kg
- Compliance: CE, UL, cUL
Note: All specifications are based on published SIEMENS documentation. Konmask.com does not modify or fabricate technical parameters.
Key Features & Benefits
- Sensorless Vector Control: Delivers precise speed and torque regulation without the need for an encoder, reducing system complexity and cost.
- Wide Output Frequency Range (0–650 Hz): Supports high-speed spindle applications and standard motor control within a single platform.
- Built-in PID Controller: Enables closed-loop process control (pressure, flow, temperature) without an external controller.
- Flexible I/O: 6 digital inputs, 2 analog inputs, 3 digital outputs, and 2 analog outputs provide extensive integration flexibility.
- Kinetic Buffering: Maintains drive operation during brief power interruptions, preventing nuisance trips on unstable supply networks.
- Modular Communication: Optional PROFIBUS DP, DeviceNet, and CANopen modules allow seamless integration into existing fieldbus architectures.
- Compact Footprint: Space-efficient design simplifies panel layout in retrofit and new-build control cabinets.
- Comprehensive Protection: Over-voltage, under-voltage, over-current, over-temperature, and ground fault protection extend motor and drive service life.
Industry & Equipment Applications
- Water & Wastewater: Pump speed control for pressure management and energy savings in municipal and industrial water systems.
- HVAC: Fan and blower control in air handling units, cooling towers, and ventilation systems.
- Material Handling: Conveyor belt speed regulation in logistics centers, warehouses, and manufacturing lines.
- Food & Beverage: Mixer, agitator, and bottling line motor control with hygienic-compatible enclosure options.
- Automotive Manufacturing: Assembly line conveyor and robotic auxiliary axis control.
- Textile & Printing: Precision tension and speed control for winding and unwinding applications.
- Chemical & Process: Pump and agitator control in hazardous and non-hazardous process environments.
System Integration & Compatible Parts
The SIEMENS MICROMASTER 440 ecosystem supports a broad range of accessories and compatible components for complete drive system integration:
- Braking Resistors: External resistors for dynamic braking in high-inertia applications (e.g., 6SE6400-4BD11-0AA0)
- EMC Filters: Class A/B line filters for compliance with EN 61800-3 (e.g., 6SE6400-2FA00-6AD0)
- Output Reactors: Protect motor windings on long cable runs (e.g., 6SE6400-3CC00-4AD3)
- PROFIBUS DP Module: 6SE6400-1PB00-0AA0 for fieldbus integration
- Operator Panel (BOP/AOP): 6SE6400-0BP00-0AA0 (Basic) / 6SE6400-0AP00-0AA0 (Advanced)
- SIMATIC S7 PLCs: Direct integration via PROFIBUS or USS for coordinated motion and process control
Our Quality Assurance Process
At Konmask.com, every unit undergoes a structured verification process before dispatch:
- Authenticity Verification: Visual inspection of labels, serial numbers, and firmware version against SIEMENS factory records.
- Functional Power-On Test: Each drive is powered up and basic parameter read/write operations are confirmed.
- Packaging Inspection: Anti-static packaging, foam cushioning, and moisture barrier bags are used for all shipments.
- Documentation: Certificate of conformity and test report available upon request for critical procurement.
We source from authorized distribution channels and verified industrial surplus inventories. We do not sell counterfeit, relabeled, or untested units.
How to Order
- Submit an inquiry via the “Get a Quote” button or email [email protected] with your required quantity and delivery timeline.
- Our technical team will confirm stock availability, lead time, and provide a formal quotation within 1 business day.
- Upon order confirmation, we arrange secure packaging and dispatch with full tracking.
- For urgent requirements, please indicate in your inquiry and we will prioritize accordingly.
Accepted payment methods: T/T (Bank Transfer), PayPal, Western Union, and trade assurance via Alibaba. OEM/volume pricing available for orders of 5+ units.
Why Choose Konmask.com?
- Specialized in Industrial Automation: We focus exclusively on PLC, DCS, VFD, and automation hardware — not a generalist marketplace.
- Global Shipping: We ship to 60+ countries with DHL, FedEx, and UPS express options. Export documentation (commercial invoice, packing list, CO) provided.
- Technical Pre-Sales Support: Our engineers can assist with compatibility checks, parameter backup, and application guidance before you commit to a purchase.
- Competitive Lead Times: Most in-stock items ship within 2–3 business days of order confirmation.
- After-Sales Warranty: 90-day warranty on all tested units. Extended warranty available on request.
Frequently Asked Questions
Q: Is the 6SE6440-2AD22-2BA1 a new or refurbished unit?
A: We carry both new-in-box and professionally refurbished units. Stock type will be clearly stated in your quotation. All refurbished units pass our full functional test protocol.
Q: Can this drive be used with a single-phase input supply?
A: No. The 6SE6440-2AD22-2BA1 requires a 3-phase 200–240 V AC input. For single-phase applications, please inquire about alternative MICROMASTER 420 models.
Q: What is the difference between MICROMASTER 420 and MICROMASTER 440?
A: The MM440 adds sensorless vector control, closed-loop speed/torque control, and a wider I/O complement compared to the simpler V/f-only MM420. The MM440 is preferred for demanding variable-torque and constant-torque applications.
Q: Do you provide the parameter list or backup file for this drive?
A: We can provide the standard SIEMENS factory default parameter list. If you require a site-specific parameter backup, please consult your original commissioning documentation or contact SIEMENS technical support.
Q: How long does international shipping take?
A: Express courier (DHL/FedEx) typically delivers within 3–7 business days to most destinations. Economy options are available for non-urgent orders.
Q: Can I return the product if it does not match my requirements?
A: Yes. We accept returns within 14 days of receipt for items in original, uninstalled condition. Please contact [email protected] to initiate a return authorization.
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