Description
The ebm-papst 4112NH4 is an ultra-high-output compact DC axial cooling fan engineered within a standard 119 x 119 x 38 mm (4.69 x 4.69 x 1.50 in) square envelope. Operating on a 12 VDC nominal supply (9 to 14 VDC range), it delivers a peak airflow rate of 208.9 CFM (355 m³/h) at a rated rotational speed of 6800 RPM while consuming 32 W. Built for mission-critical industrial duty, this model integrates a rugged die-cast aluminum housing paired with a fiberglass-reinforced PA plastic impeller, precision dual ball bearings, and built-in protection against reverse polarity and locked-rotor conditions. Electrical connection is routed via robust AWG 22 UL 1007 wire leads, ensuring seamless integration into high-density thermal management assemblies.
Key Features
- Aerodynamic High-Static Performance: Generates up to 208.9 CFM (355 m³/h) at 6800 RPM to overcome dense component back pressure.
- Rugged Die-Cast Construction: Heavy-duty die-cast aluminum housing matched with glass-fiber reinforced PA plastic impeller ensures structural dimensional stability.
- Heavy-Duty Bearing System: Precision ball bearings deliver an extended L10 operating service life of 62,500 hours at 40 °C.
- Integrated Electrical Protection: Built-in electronic protection circuitry safeguards the motor assembly against reverse polarity and locked-rotor stall conditions.
- Optimized Strut Intake Flow: Efficient intake-over-struts airflow geometry provides uniform flow distribution with clockwise rotation viewed toward the rotor.
Technical Specifications
| Manufacturer | ebm-papst |
|---|---|
| Manufacturer Part Number (MPN) | 4112NH4 |
| Product Series | 4100N Series |
| Product Category | DC Axial Fans |
| Fan / Component Type | DC Tubeaxial Compact Fan |
| Phase & Supply Type | DC |
| Rated Voltage | 12 VDC |
| Operating Voltage Range | 9.0 to 14.0 VDC |
| Speed (RPM) | 6800 RPM |
| Power Rating | 32 W |
| Airflow | 208.9 CFM (355.0 m³/h) |
| Noise Level | 67.0 dB(A) |
| Sound Power Level | 7.4 Bel |
| Airflow Direction | Intake over struts |
| Dimensions (L × H × D) | 119 × 119 × 38.0 mm (4.69 × 4.69 × 1.50 in) |
| Mounting Hole Pitch | 104.8 × 104.8 mm (4.13 × 4.13 in) |
| Mounting Hole Diameter | 4.3 mm (0.169 in) |
| Housing Material | Die-cast aluminum |
| Impeller Material | Glass-fiber reinforced PA plastic |
| Bearing Type | Dual Ball Bearing |
| Direction of Rotation | Clockwise, viewed toward rotor |
| Weight | 0.390 kg (0.86 lbs / 390 g) |
| Termination & Cable Specs | 2 Lead Wires, AWG 22, UL 1007, TR 64, stripped and tin-plated |
| Motor Protection | Protected against reverse polarity and blocked rotor |
| Operating Temperature | -20 to +65 °C (-4 to +149 °F) |
| Service Life (L10 at 40 °C) | 62,500 Hours |
| Standards & Compliance | CE, RoHS, VDE, UL Approved |
Applications
The ebm-papst 4112NH4 compact axial fan is engineered specifically for forced-air cooling in high-density industrial electronics, telecommunications base station rectifiers, and high-performance server enclosures. It provides focused thermal extraction across compact variable frequency drive (VFD) power stages, solar inverter modules, and uninterrupted power supply (UPS) converter bays. OEM design engineers and MRO maintenance technicians deploy this rugged aluminum-frame unit within automated test benches, medical imaging chassis, and harsh factory automation enclosures requiring dependable continuous duty.
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