ebm-papst DV4650-470 – High-Efficiency EC Axial Cooling Fan | DiamondFace® Series
Engineering Background: The DV4650-470 is part of ebm-papst’s renowned DiamondFace® axial fan platform — a series engineered specifically for demanding industrial environments where thermal management, acoustic performance, and long-term reliability are non-negotiable. ebm-papst, headquartered in Mulfingen, Germany, is the global benchmark for EC (Electronically Commutated) fan technology, with over 60 years of engineering heritage.
Product Positioning: The DV4650-470 is a premium-grade EC axial fan designed for OEM integration into industrial control cabinets, power electronics enclosures, HVAC systems, and automation infrastructure. Its brushless EC motor eliminates mechanical wear points, delivering service life far exceeding conventional AC fans while consuming up to 50% less energy. For procurement engineers specifying cooling solutions in PLC panels, servo drives, or DCS enclosures, the DV4650-470 represents the lowest total cost of ownership in its class.
Complete Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | ebm-papst (Germany) |
| Part Number / SKU | DV4650-470 |
| Series / Platform | DiamondFace® EC Axial Fan |
| Fan Dimensions | 172 mm × 150 mm (nominal frame) |
| Motor Technology | EC (Electronically Commutated), brushless DC |
| Nominal Voltage | 48 VDC / 230 VAC (universal input, model-dependent) |
| Power Consumption | Approx. 18–35 W (operating point dependent) |
| Airflow (max) | Approx. 650–750 m³/h (free-delivery) |
| Static Pressure (max) | Approx. 120–180 Pa |
| Speed | Approx. 1,400–2,800 RPM (speed-controlled) |
| Noise Level | ≤ 52 dB(A) at nominal operating point |
| Protection Class | IP44 (motor), IP54 optional |
| Insulation Class | F (155°C) |
| Ambient Temperature | -20°C to +60°C (operating); -40°C to +70°C (storage) |
| Bearing Type | Ball bearing (maintenance-free) |
| Service Life (L10) | ≥ 40,000 hours at 40°C |
| Speed Signal Output | PWM / 0–10V / RS-485 (model variant) |
| Weight | 720 g |
| Compliance / Certifications | CE, UL, RoHS, ErP 2015/1188 |
| Country of Origin | Germany / Czech Republic (ebm-papst production sites) |
Note: Exact electrical parameters vary by sub-variant. Always cross-reference the ebm-papst datasheet for your specific application voltage and control interface.
Proven Application Environments
- PLC & DCS Control Cabinets — Forced-air cooling for Siemens S7, Allen-Bradley ControlLogix, Schneider Modicon, and ABB AC500 enclosures
- Servo Drive & Inverter Cooling — Thermal management for VFDs, servo amplifiers, and regenerative drives in high-cycle applications
- Power Electronics & UPS Systems — Reliable airflow across rectifier banks, capacitor arrays, and transformer assemblies
- HVAC & Refrigeration Equipment — Condenser and evaporator fan replacement in commercial and industrial HVAC units
- Telecommunications & Data Infrastructure — Rack-mount server cooling, base station thermal management
- Medical & Laboratory Equipment — Low-noise, low-vibration cooling for sensitive analytical instruments
- Renewable Energy Systems — Inverter cooling in solar PV and wind energy converters
Engineering Advantages
- EC Motor Efficiency: Up to 50% energy savings vs. conventional AC shaded-pole fans — directly reduces panel heat load and operating costs
- DiamondFace® Blade Geometry: Patented aerodynamic blade profile delivers higher airflow at lower noise and reduced power draw compared to standard axial designs
- Integrated Speed Control: PWM or analog 0–10V input enables precise thermal management without external controllers — simplifies BOM and panel wiring
- Ball Bearing Construction: Maintenance-free, orientation-independent mounting (horizontal, vertical, or inclined) with L10 life ≥ 40,000 hours
- Wide Ambient Range: Rated to -20°C / +60°C continuous operation — suitable for outdoor enclosures and harsh industrial environments
- Plug-and-Play Integration: Standard 172mm frame footprint is a direct mechanical replacement for legacy AC fans in most OEM enclosure designs
- EMC Compliance: Integrated EMC filter suppresses conducted and radiated emissions — no additional filtering required for CE-marked installations
System Architecture & Signal Flow
The DV4650-470 integrates a brushless EC motor with an onboard microcontroller that manages commutation, speed regulation, and fault detection. The signal flow is as follows:
- Power Input: 48 VDC bus (or 230 VAC mains via internal rectifier) → onboard PFC stage → DC bus
- Control Interface: External speed setpoint via PWM (10–100% duty cycle) or 0–10V analog signal → motor controller
- Motor Drive: 3-phase BLDC commutation → rotor → DiamondFace® impeller
- Feedback Output: Tachometer pulse (2 pulses/rev) or RS-485 status → PLC/BMS for closed-loop thermal control
- Fault Protection: Overcurrent, over-temperature, and locked-rotor protection with auto-restart — no external protection relay required
This architecture allows direct integration with Siemens TIA Portal, Rockwell Studio 5000, or any BACnet/Modbus-capable building management system.
Sourcing & Quality Verification
- Source: Konmask.com sources DV4650-470 units directly from authorized ebm-papst distributors and verified OEM surplus channels
- Authenticity: Every unit ships with original ebm-papst labeling, holographic authenticity markings, and traceable batch/date codes
- Incoming Inspection: 100% electrical continuity check, rotation test, and visual inspection prior to dispatch
- Packaging: Original OEM anti-static packaging with foam inserts — safe for international air and sea freight
- Documentation: CE Declaration of Conformity, RoHS compliance certificate, and ebm-papst datasheet available on request
- Warranty: 12-month warranty against manufacturing defects from date of invoice
Procurement Process
- Confirm Part Number: Verify DV4650-470 against your BOM or existing fan label — cross-reference voltage, frame size, and control interface
- Request Quote: Contact support@konmask.com for volume pricing (MOQ 1 unit; tiered discounts from 5+ units)
- Lead Time: In-stock units ship within 1–3 business days; ex-stock orders confirmed within 24 hours
- Payment: T/T bank transfer, PayPal, or trade credit (approved accounts); proforma invoice issued on order confirmation
- Shipping: DHL Express, FedEx International Priority, or sea freight for bulk orders — full tracking provided
- After-Sales: Technical support available via email or WhatsApp (+0086 19859288691) for installation and integration queries
Technical FAQ
Q: Can the DV4650-470 replace my existing AC axial fan directly?
A: In most cases, yes. The 172mm frame is a standard OEM footprint. Verify mounting hole pattern (typically 152mm diagonal) and airflow direction (exhaust vs. intake) before installation. Electrical wiring will differ — the EC fan requires DC or rectified AC input plus a control signal wire.
Q: What speed control method is recommended for PLC integration?
A: PWM control (10 kHz, 10–100% duty cycle) is preferred for PLC integration as it provides the highest resolution and noise immunity. 0–10V analog is suitable for simpler applications or HVAC controllers.
Q: Is the fan suitable for outdoor or wash-down environments?
A: The standard DV4650-470 is rated IP44 (splash-proof). For outdoor or wash-down applications, specify the IP54 or IP55 variant. Contact us to confirm availability.
Q: What is the minimum order quantity?
A: MOQ is 1 unit. Volume pricing applies from 5 units. OEM/project pricing available for 20+ units — contact our technical sales team.
Q: Can you provide a datasheet or 3D CAD model?
A: Yes. Official ebm-papst datasheet (PDF) and STEP/IGES CAD files are available on request via support@konmask.com.
Q: What is the shelf life for stored units?
A: ebm-papst recommends a maximum storage period of 24 months in original packaging at 15–25°C, 45–75% RH. Ball bearing grease remains within specification for this period.
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