4656NU ebm-papst 4656NU AC Fan | 94.1 CFM | IP54/IP65 | Ball Bearing | 230VAC

ebm-papst 4656NU High-Performance Industrial AC Axial Fan

The ebm-papst 4656NU is an industrial-grade AC axial fan engineered for reliable cooling in demanding environments. With a 230VAC motor, 2650 RPM speed, and 94.1 CFM (2.63 m³/min) airflow, this fan ensures efficient thermal management for industrial and commercial applications.

Key Benefits:
✔ IP54/IP65-rated – Resists dust ingress & water jets
✔ Extended lifespan – 37,500 hours at 40°C
✔ Low-noise operation – 47 dB(A) for reduced acoustic impact
✔ Versatile mounting – Flanged housing with threaded grounding lugs

Ideal for:

• Industrial machinery cooling
• Medical & laboratory equipment
• HVAC & enclosure ventilation
• Telecom & power supply systems

Key Features & Benefits

✔ IP54/IP65 Protection for Harsh Environments

• Dust-tight (IP5X) – Prevents particulate ingress
• Water-resistant (IPX5) – Withstands low-pressure water jets

✔ Ball Bearing Motor for Longevity

• 37,500-hour MTBF @ 40°C – Maintenance-free operation
• Superior to sleeve bearings in high-temp environments

✔ Robust Aluminum/Steel Construction

• Frame: Aluminum (lightweight & corrosion-resistant)
• Blades: Steel (durable & impact-resistant)

✔ Certified for Safety & Compliance

• UL, CSA, CE, VDE approvals – Meets global standards

Technical Specifications

4000N Series Overview

The ebm-papst 4000N Series consists of compact, high-efficiency AC axial fans with external rotor motors, designed for applications requiring reliable airflow in constrained spaces.

Series-Wide Features:

✔ Multiple voltage options (24VAC, 115VAC, 230VAC)
✔ Choice of bearings (Ball or Sintec sleeve)
✔ IP20 to IP65 ingress protection models
✔ Flanged housing with universal mounting

4000N Series Model Comparison

🔹 Best for Harsh Environments: 4656NU (IP54/IP65 + ball bearings)
🔹 Best for Airflow: 4600N-466 (106 CFM @ 3100 RPM)
🔹 Best for Low Noise: 4850N (32 dB(A) @ 1800 RPM)

FAQ (Frequently Asked Questions)

Q1: What’s the difference between IP54 and IP65 ratings?

A:

• IP54: Dust-protected + water splash resistance
• IP65: Dust-tight + low-pressure water jets (4656NU achieves both)

Q2: Can this fan be used outdoors?

A: Yes—the IP65 rating makes it suitable for outdoor or washdown environments.

Q3: How does ball bearing compare to Sintec sleeve bearings?

A:
✔ Ball bearings: Longer life (37,500 hrs), better for high temps/vibration
✔ Sintec bearings: Quieter, lower cost

Q4: What accessories are available?

A: Finger guards (e.g., 101-8096), filters (482-207), and mounting clips (482-203).

Q5: Is speed control possible?

A: Only via external voltage control – for variable speed, consider EC motor fans (ACi 4400 Series).

Q6: What’s the cross-reference for replacement?

A: Direct equivalents: 4656N (terminals) or 4650N (Sintec bearing version).

Why Choose the 4656NU?

✅ Premium protection (IP54/IP65)
✅ Ball bearings for longevity
✅ Aluminum/steel ruggedized build
✅ Certified for industrial safety (UL/CSA/VDE)

Ideal for food processing, medical devices, and outdoor HVAC, the 4656NU blends durability, efficiency, and compliance.

Need Higher Efficiency?

For energy-saving versions, explore the ACi 4400 Series (GreenTech EC motors).