ECTRA 315
ACTIVE CONFIGURATION1.5 kW
Compact high-efficiency BLDC / EC platform for HVAC fan assemblies, AHU modules and small plug HVAC applications.
Supply3×400 VAC
Control0–10 V / RTU
ApplicationCompact HVAC modules
High-efficiency BLDC / EC motor platform for OEM HVAC integration
Next-generation BLDC motor technology.
For HVAC OEMs.
A technical BLDC / EC motor platform for HVAC OEM integration: power electronics, Modbus RTU, diagnostics, protection logic, commissioning workflow and service documentation.
1.5 / 4.0 / 7.5
power [kW]
3×400 VAC
industrial supply
AI / RS-485
0–10V / Modbus RTU
HVAC S1
continuous duty
NOT A COMPONENT. A COMPLETE DRIVE ECOSYSTEM.
A product platform that looks as engineered as it performs.
Engineered to deliver higher efficiency, smarter operation and next-generation HVAC motor performance.
Efficiency driven
Designed for high motor-system efficiency, not only isolated laboratory motor efficiency.
Integrated power
EMI filter, DC-link, inverter, current control and protection logic inside one controlled platform.
Native integration
0–10 V, digital enable and Modbus RTU prepared for BMS, PLC, SCADA and service tools.
OEM discipline
Traceability, commissioning, fault handling, diagnostics and lifecycle documentation from day one.
VALUE FOR OEM HVAC
Premium BLDC motor technology, controlled
integration and measurable
system value.
ECTRA combines high-efficiency BLDC / EC motor technology with practical OEM integration: stable inrunner mechanics, structured control interfaces, telemetry, diagnostics and lifecycle documentation.
High-efficiency operation
Designed to reduce operating cost in continuous HVAC duty cycles through high-efficiency BLDC / EC motor operation.
Native system integration
Clear control modes, Modbus RTU communication, electrical interfaces and commissioning procedures for OEM projects.
Full system visibility
Telemetry, fault codes, counters and documentation support faster diagnostics and more disciplined maintenance.
TECHNICAL OVERVIEW
Built for integration, commissioning and long-term performance.
POWER
Electrical platform
3×400 VAC supply, internal DC-link, inverter stage, protective earthing and EMC-aware installation concept.
CONTROL
Operating modes
Analog 0–10 V, digital enable, percentage control, RPM / frequency references and Modbus-based operation.
DIAGNOSTICS
Fault and telemetry
Current, DC-link, ripple, temperature, communication status, feedback state and structured fault codes.
SERVICE
Lifecycle support
Traceability, commissioning checklist, parameter record, alarm matrix and maintenance workflow.
Engineered without compromise.
INRUNNER ADVANTAGE
Designed for stable mechanics,
efficient cooling and long-term durability.
ECTRA uses an inrunner architecture: the rotating system is compact and mechanically stiff, while the stator is in direct thermal contact with the housing. This architecture supports stable operation in demanding HVAC motor systems.
01
Lower radial and axial deflection, better alignment of the rotor-bearing system and reduced vibration risk.
02
Compact rotating assembly with reduced mass, lower mechanical stress and improved integration into HVAC equipment.
03
Lower rotating motor mass reduces bearing stress and supports longer service life in continuous HVAC operation.
04
The external stator is directly connected to the housing, improving heat transfer and reducing winding temperature.
ECTRA MOTOR Families
One architecture. Unified integration. Three power classes.
ECTRA 450
ACTIVE CONFIGURATION4.0 kW
Medium power BLDC / EC platform for OEM HVAC units requiring stable operation, diagnostics and industrial communication.
Supply3×400 VAC
Control0–10 V / RTU
ApplicationMedium OEM HVAC units
ECTRA 630
ACTIVE CONFIGURATION7.5 kW
High airflow BLDC / EC platform for larger HVAC equipment where efficiency, telemetry and controlled commissioning are critical.
Supply3×400 VAC
Control0–10 V / RTU
ApplicationHigh airflow HVAC equipment
More power. Less energy.
Ectra Motors deliver unmatched performancewith minimal energy consumption.
POWER & CONTROL ARCHITECTURE
Integrated power and control architecture.
ECTRA combines mains input, filtering, DC-link, inverter stage, BLDC commutation, monitoring and communication in a compact motor-drive platform for HVAC OEM applications.
TECHNICAL DATA
Core electrical and integration parameters.
Typical platform values are shown for orientation. Binding values shall always be taken from the released product datasheet and nameplate.
| Parameter | Typical platform value | Integration note |
|---|---|---|
| Supply voltage | 3×400 VAC ±10% | 50 / 60 Hz industrial supply |
| Control inputs | 0–10 V, digital enable | Defined by product variant |
| Communication | RS-485 Modbus RTU | BMS / PLC / service tools |
| Ambient range | −20…+50 °C | Derating may apply by variant |
| Diagnostics | Faults, counters, telemetry | Available through register map |
Communication Interface
Integrated Modbus RTU.
Register structure split into functional groups, enabling precise control and monitoring of operating parameters.
Control
Measurements
Alarms
Diagnostics
MODBUS_REGISTER_MAP_V1.0
| Address | Group Name | Function |
|---|---|---|
| 0x0001 | Ctrl:Mode | Operating mode (Selection) |
| 0x0002 | Ctrl:Setpoint | Setpoint (Speed demand) |
| 0x0010 | Failsafe:Mode | Failsafe behavior |
| 0x0020 | RS485:Address | Physical device address |
| 0x0100 | Data:Current | Drawn current (RMS) |
| 0x0104 | Data:Temp | Module temperature |
Status: OK
PERFORMANCE INTELLIGENCE
Performance based on laboratory test data for validated OEM product integration.
Efficiency
variant dependent*
Power range
1.5–7.5 kW
Control modes
Analog / % / RPM / Hz
Data basis
Laboratory test data
COMPLIANCE AND INTEGRATION
Designed for compliant OEM system integration.
ECTRA motor documentation supports product integration, electrical installation, EMC discipline and conformity assessment of the final OEM equipment.
CE requirements framework
Designed in accordance with applicable CE requirements. Final conformity depends on the released motor variant and complete OEM system integration.
UL (in progress)
UL certification is currently in progress. Final certification status will be confirmed for each released motor variant.
EMC installation discipline
Final EMC performance depends on grounding, shielding, cable routing, enclosure design and complete system integration.
COMMISSIONING WORKFLOW
Controlled startup from
mechanical check to validated operation.
01
Mounting, alignment, impeller balance, airflow path and vibration risk are checked before energisation.
02
Supply voltage, PE, cable routing, shielding, control wiring and RS-485 polarity are confirmed.
03
Control mode, setpoint limits, ramps, failsafe behaviour and communication settings are configured.
04
First start is performed at reduced speed with current, DC-link voltage, temperature and vibration monitoring.
Structured technical documentation and integration support.
ECTRA documentation supports the full technical workflow: transport, installation, electrical connection, commissioning, operation, diagnostics, maintenance, Modbus integration and service escalation.
Operation, Installation and Integration Manual
Product datasheets
Electrical connection and wiring guide
Modbus RTU register map
Commissioning checklist
Alarm and fault handling guide
Frequently asked questions
EC Motors FAQ.
Find answers to the most frequently asked questions about EC motors, including energy efficiency, speed control, HVAC applications, and maintenance requirements.
Reliable EC Motors for Modern HVAC Systems
What is an EC motor?
An EC motor (Electronically Commutated Motor), also known as a BLDC motor (Brushless DC Motor), is a highly efficient electric motor that uses permanent magnets and electronic commutation instead of traditional mechanical brushes.
Thanks to its brushless design, an EC motor delivers superior energy efficiency, longer service life, lower maintenance requirements, and precise speed control, making it an ideal solution for modern HVAC and industrial applications.
What are the main advantages of EC motors?
EC motors offer numerous benefits compared to conventional AC motors, including:
- High energy efficiency and reduced power consumption
- Precise and smooth speed control
- Low noise and vibration levels
- Long operational lifespan
- Minimal maintenance requirements
- Improved system performance and reliability
These advantages make EC motors the preferred choice for HVAC systems, ventilation units, refrigeration equipment, and industrial automation.
Are EC motors more energy-efficient than traditional AC motors?
Yes. EC motors are significantly more energy-efficient than standard AC motors. By combining permanent magnet technology with advanced electronic control, EC motors maintain high efficiency across a wide operating range, including partial-load conditions.
This results in lower electricity consumption, reduced operating costs, and improved sustainability for commercial and industrial facilities.
Can the speed of an EC motor be controlled?
Absolutely. One of the key advantages of EC motor technology is its ability to provide precise variable speed control. EC motors can be regulated using common control signals such as 0–10V, PWM, or Modbus RTU communication protocols.
This flexibility allows HVAC systems and building automation solutions to optimize airflow, energy consumption, and overall performance.
What applications are EC motors used in?
EC motors are widely used in applications where energy efficiency, reliability, and speed control are critical, including:
- Air handling units (AHUs)
- Ventilation and exhaust systems
- HVAC equipment
- Inline and duct fans
- Refrigeration and cooling systems
- Heat recovery units
- Industrial machinery and automation
- Commercial and residential ventilation solutions
Their versatility makes EC motors a leading technology in modern energy-efficient systems.
Do EC motors require regular maintenance?
EC motors require very little maintenance compared to brushed or conventional motors.
Since there are no brushes to wear out, the risk of mechanical deterioration is significantly reduced. In most cases, maintenance is limited to periodic inspection of bearings, electrical connections, and ensuring proper operating conditions.
This translates into lower maintenance costs and increased system uptime.
Why are EC motors quieter than traditional motors?
EC motors operate more quietly because they eliminate the friction and mechanical noise associated with brushes. Additionally, advanced electronic motor control minimizes vibrations and optimizes motor performance.
The result is a quieter, smoother operation, making EC motors ideal for offices, commercial buildings, hospitals, hotels, and other noise-sensitive environments.
Why choose EC motors from Ectra Group?
Ectra Group EC motors are engineered to deliver exceptional energy efficiency, reliability, and seamless integration with modern HVAC and industrial systems. Designed for demanding applications worldwide, our brushless EC motor solutions provide:
- Maximum energy savings
- High-performance operation
- Smooth and precise speed control
- Long service life
- Low maintenance costs
- Compatibility with modern building management systems (BMS)
By choosing Ectra Group EC motors, businesses benefit from lower operating costs, improved system efficiency, and a future-ready solution for sustainable ventilation and HVAC applications.
Partnerships
Let's begin.
We are ready to take on the challenge. Innovative projects start with a single message.
Partnerships / Sales
service@ectra-group.comTechnical support
+48 691 451 232Head office
ul. Rumska 18
81-198 Dębogórze, Poland