Eaton DA1-34090FN-B55N – 90A 400V Three-Phase Variable Frequency Drive | DA1 Series Platform
Engineering Background: The Eaton DA1 Series represents Eaton’s next-generation general-purpose AC drive platform, engineered for demanding industrial motor control applications. Designed to IEC/EN 61800-5-1 safety standards, the DA1 series delivers precise speed and torque regulation across a wide range of industrial machinery, HVAC systems, pumps, fans, compressors, and conveyor lines.
Product Positioning: The DA1-34090FN-B55N is a 90A, 400V class, three-phase input/output variable frequency drive (VFD) with integrated EMC filter (Class C2) and a built-in braking chopper. It is purpose-built for OEM machine builders and system integrators requiring a compact, high-performance drive with flexible fieldbus connectivity and advanced motor control algorithms.
Complete Technical Specifications
- Part Number / SKU: DA1-34090FN-B55N
- Manufacturer: Eaton Corporation
- Series / Platform: DA1 Series (PowerXL DA1)
- Output Current (Nominal): 90 A
- Motor Power (400V, HD): 45 kW (60 HP)
- Input Voltage: 3-Phase, 380–480 V AC ±10%
- Output Voltage: 3-Phase, 0–480 V AC (variable)
- Input Frequency: 47–63 Hz
- Output Frequency Range: 0–500 Hz
- Control Mode: V/f, Sensorless Vector (SVC), Closed-Loop Vector (with encoder option)
- Overload Capacity: 150% for 60 s (Heavy Duty); 110% for 60 s (Normal Duty)
- EMC Filter: Integrated, Class C2 (EN 61800-3)
- Braking Chopper: Built-in
- Protection Degree: IP20 (chassis mount)
- Ambient Temperature: -10°C to +50°C (operating); -40°C to +70°C (storage)
- Altitude: Up to 1000 m without derating
- Humidity: 5–95% RH, non-condensing
- Communication: Modbus RTU (standard); PROFIBUS DP / CANopen / DeviceNet / EtherNet/IP / PROFINET (via optional modules)
- Display / HMI: Integrated LED keypad; compatible with DA1-RJ45-CAB remote keypad
- Digital Inputs: 6 × programmable DI (24 V DC)
- Analog Inputs: 2 × AI (0–10 V / 0–20 mA)
- Relay Outputs: 2 × relay (250 V AC / 3 A)
- Analog Output: 1 × AO (0–10 V / 0–20 mA)
- Dimensions (H × W × D): 380 × 200 × 220 mm (approx.)
- Weight: 4.46 kg
- Certifications: CE, UL, cUL, RoHS
- Compliance Standards: IEC/EN 61800-5-1, EN 61800-3, UL 508C
Proven Application Environments
- Pump and fan speed control (HVAC, water treatment, building automation)
- Conveyor and material handling systems
- Compressor and blower drives
- Mixer, agitator, and centrifuge applications
- Textile, printing, and packaging machinery
- CNC auxiliary axes and general machine tool spindle drives
- Process industry: chemical, food & beverage, pharmaceutical
Engineering Advantages
- Integrated EMC Filter (C2): Eliminates the need for external line filters in most industrial installations, reducing panel space and BOM cost.
- Built-in Braking Chopper: Enables fast deceleration and regenerative braking without external chopper modules — critical for high-inertia loads.
- Advanced SVC Algorithm: Delivers ±0.5% speed accuracy without encoder feedback, suitable for demanding process applications.
- Modular Fieldbus Architecture: Single hardware platform supports 5+ fieldbus protocols via plug-in option cards — future-proof for Industry 4.0 integration.
- Safe Torque Off (STO): SIL 2 / PLd certified STO function for functional safety compliance without external safety relays.
- Energy-Saving Mode: Automatic flux optimization reduces motor losses at partial load — measurable energy savings in pump/fan applications.
- Compact Footprint: High power density design minimizes control panel real estate.
System Architecture & Signal Flow
The DA1-34090FN-B55N follows a standard AC drive signal chain: 3-Phase AC Mains → Integrated EMC Filter → Rectifier Bridge → DC Bus (with built-in braking chopper) → IGBT Inverter Stage → Motor Output Terminals (U/V/W). The control board interfaces with the power stage via isolated gate drivers and monitors DC bus voltage, output current, heatsink temperature, and motor thermal model in real time. All I/O signals are processed by the onboard DSP, which executes the selected motor control algorithm (V/f or SVC) at a 4 kHz PWM carrier frequency (adjustable 2–16 kHz).
Sourcing & Quality Verification
- All units sourced through authorized Eaton distribution channels or verified OEM surplus with full traceability.
- Each unit undergoes incoming inspection: visual check, label verification (date code, country of origin, CE/UL markings), and functional power-on test where applicable.
- Counterfeit risk mitigation: holographic labels, PCB revision codes, and firmware version cross-referenced against Eaton’s published product documentation.
- Certificate of Conformity (CoC) and test reports available upon request for project procurement.
Procurement Process
- Step 1: Confirm part number DA1-34090FN-B55N matches your motor nameplate data (kW, voltage, current).
- Step 2: Add to cart or contact us for volume pricing and lead time confirmation.
- Step 3: Receive order confirmation with tracking within 1 business day.
- Step 4: Units ship from our warehouse with full packaging and documentation.
- Step 5: Post-delivery technical support available via email or phone for commissioning assistance.
Technical FAQ
Q: What motor power does the DA1-34090FN-B55N support?
A: Rated for 45 kW (60 HP) at 400V in Heavy Duty mode. In Normal Duty mode, it can drive up to 55 kW motors with reduced overload capacity.
Q: Does this drive include an EMC filter?
A: Yes. The “-FN” suffix in the part number denotes an integrated Class C2 EMC filter compliant with EN 61800-3.
Q: Is a braking resistor required?
A: The built-in braking chopper is included (“-B55N” suffix). An external braking resistor must be selected and connected based on your deceleration requirements and duty cycle.
Q: What fieldbus protocols are supported?
A: Modbus RTU is standard. PROFIBUS DP, CANopen, DeviceNet, EtherNet/IP, and PROFINET are supported via optional plug-in communication modules.
Q: Can this drive be used for single-phase input?
A: No. The DA1-34090FN-B55N requires three-phase 380–480V AC input. Single-phase operation is not supported at this power level.
Q: What is the warranty?
A: Konmask.com provides a 12-month warranty on all verified units. Eaton’s standard product warranty terms also apply for new units.
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