Siemens Micromaster 440 4kW VFD 6SE6440-2UD24-0BA1 Inverter

Description

The Siemens Micromaster 440 (MM440) 6SE6440-2UD24-0BA1 is a world-class 4kW (5.5HP) Variable Frequency Drive (VFD) engineered for advanced speed and torque regulation of three-phase AC induction motors. Operating as a sophisticated frequency converter, it converts standard 3-phase mains utility power into adjustable frequency and voltage output, enabling dynamic motor control, high starting torque, and smooth deceleration ramps.

In Bangladesh’s expanding industrial and manufacturing sectors, maintaining operational reliability and precise machine synchronization under fluctuating line power conditions is critical. The Micromaster 440 series addresses these demands by offering high overload capacity, sensorless vector control, and an integrated braking chopper for rapid dynamic stopping. Plant managers, automation engineers, and machine builders across Bangladesh rely on this unit for demanding applications requiring high dynamic response and continuous long-term stability.

Key Features

• Advanced Vector Control: Supports sophisticated sensorless vector control and closed-loop control modes for maximum torque at low speeds and high precision regulation.
• High Overload Handling: Engineered for High Overload (HO) duties, delivering up to 150% output current for 60 seconds and 200% for 3 seconds.
• Integrated Braking Chopper: Includes an internal dynamic braking resistor driver for fast stopping cycles and high-inertia load braking.
• Extensive I/O Interface: Features 6 digital inputs, 2 analog inputs, 2 analog outputs, and 3 relay outputs for comprehensive automation system integration.
• Flexible Fieldbus Communication: Compatible with RS485/USS interfaces and expandable via optional PROFIBUS DP, DeviceNet, and CANopen communication modules.

Technical Advantages

• High Energy & Operational Efficiency: Operates at 96% efficiency with a 0.95 power factor, significantly lowering energy consumption and electrical cabinet thermal load.
• Durable Industrial Construction: Compact Frame Size B (IP20 rated) enclosure engineered to endure harsh industrial environments and continuous operation.
• Comprehensive Protection System: Features integrated defenses against overvoltage, under-voltage, overcurrent, motor thermal overload (I²t / PTC interface), and earth faults.
• Significant Energy Saving: Reduces power consumption by up to 30%–50% on variable torque loads (pumps and fans) compared to fixed-speed starters.
• Easy Parameterization & Diagnostics: Configurable via optional Basic Operator Panel (BOP), Advanced Operator Panel (AOP), or PC software (STARTER).

Applications

• Industrial Manufacturing: Drives heavy conveyors, mixers, extruders, agitators, packaging lines, and material handling equipment.
• Textile & Garments Sector: Controls spinning machinery, stenters, dyeing vats, winders, and industrial washing systems across Bangladeshi textile mills.
• Factory Utilities & Heavy Machinery: Manages industrial air compressors, cranes, hoists, blowers, and booster pump arrays.
• Commercial HVAC & Building Automation: Ideal for supply/exhaust blowers, cooling towers, and chilled water circulation pumps.
• Project Installations: Applied in municipal water treatment plants, effluent treatment plants (ETP), and OEM panel manufacturing across Bangladesh.

Why Choose This Product?

• Siemens Global Engineering: Manufactured by Siemens, a global leader in industrial automation, providing proven field reliability and continuous precision.
• Unmatched Dynamic Performance: High starting torque and fast transient speed response protect mechanical couplings, gearboxes, and motor shafts.
• Cost-Effective System Integration: Integrated braking chopper and extensive software parameters lower external component requirements and control panel costs.
• After-Sales Support: Supported by authentic sourcing, technical expertise, and local customer support through loopshop.com.bd.

Technical Specification Table

Features List

✓ High Overload rating (150% for 60s, 200% for 3s) for heavy-duty starting

✓ Advanced sensorless vector control for high torque accuracy

✓ Built-in dynamic braking chopper for rapid stopping cycles

✓ Extensive I/O with 6 digital inputs, 2 analog inputs, and 2 analog outputs

✓ Integrated RS485 communication with PROFIBUS DP expansion support

✓ High operational efficiency (96%) with integrated motor thermal protection

Benefits For Customers

• Reduces Electricity Cost: Matches motor speed directly to actual load demand, eliminating energy waste during partial-load conditions.
• Improves Operational Reliability: Soft starting capabilities prevent current surges and mechanical shocks to connected couplings during startup.
• Saves Maintenance Cost: Extends mechanical equipment service life (belts, bearings, gearboxes) through smooth acceleration and deceleration ramps.
• Suitable for Bangladesh Environment: Rated for operation up to 50°C to handle demanding ambient conditions in Bangladeshi factories.

Installation & Maintenance Guide

Installation Requirements:

• Mount vertically on a flat, non-combustible surface inside a well-ventilated, dust-protected electrical control panel.
• Maintain adequate free cooling clearance (top, bottom, and front) to ensure unrestricted airflow through the cooling fan.
• Verify mains power supply matches 380V-480V 3-Phase specifications before terminating electrical connections.
• Earth the drive enclosure securely using a dedicated protective conductor to ensure EMC compliance and operator safety.

Maintenance Tips:

• Periodically clear dust and debris from heat sink cooling fins using clean, dry compressed air to prevent thermal fault trips.
• Inspect terminal connection screws for correct torque tightness during routine plant shutdowns to prevent high-resistance joints.
• Keep control cabinet doors tightly closed and clean air intake filters regularly to prevent atmospheric contamination.

Safety Instructions:

• Disconnect main AC input supply and wait at least 5 minutes for internal DC link capacitors to discharge fully before touching wiring.
• Installation, parameter programming, and servicing must only be performed by qualified electrical engineers or automation technicians.
• Do not conduct high-voltage megger or insulation resistance testing directly across drive power terminals.

Frequently Asked Questions (FAQ)

Q: What is the price of Siemens Micromaster 440 4kW VFD in Bangladesh?

A: The price of the Siemens Micromaster 440 6SE6440-2UD24-0BA1 4kW VFD in Bangladesh varies depending on current stock availability and import rates. Please check loopshop.com.bd or contact our sales team for updated pricing.

Q: Where can I buy original Siemens Micromaster 440 4kW VFD in Bangladesh?

A: You can purchase genuine Siemens Micromaster 440 series drives online directly at loopshop.com.bd with reliable delivery across Bangladesh.

Q: What warranty does this product have?

A: This product carries standard supplier warranty protection against factory defects. Contact loopshop.com.bd customer service for specific warranty terms.

Q: Is this suitable for Bangladesh climate?

A: Yes, it is rated for operating temperatures from -10°C up to +50°C, making it well-suited for industrial factory environments in Bangladesh.

Q: How to install this product?

A: Mount the VFD vertically inside a cabinet, connect 3-phase AC input lines and motor output cables, earth the unit properly, and configure parameters using a BOP/AOP keypad or STARTER software.

Q: Does the 6SE6440-2UD24-0BA1 include an internal braking chopper?

A: Yes, this model includes a built-in dynamic braking chopper, allowing direct connection of an external braking resistor.

Q: What is the rated output current of this 4kW Siemens VFD?

A: The 6SE6440-2UD24-0BA1 delivers a nominal rated output current of 10.2A under 380V-480V 3-phase operation.

Q: Can this VFD handle high-torque heavy-duty starting?

A: Yes, it features a High Overload rating capable of delivering 150% current for 60 seconds and 200% for 3 seconds.

Q: Does this drive support PROFIBUS communication?

A: Yes, it supports PROFIBUS DP and DeviceNet communication protocols via optional plug-in fieldbus modules.

Q: What input supply voltage is required for this Siemens drive?

A: It requires a 3-phase AC mains supply ranging between 380Vac and 480Vac (±10%) at 47 to 63 Hz.