AC4300/19H-012 ebm-papst AC4300/19H-012 AC Fan | 120.2 CFM | 3400 RPM | EC Motor | IP21
The ebm-papst AC4300/19H-012 is a high-efficiency 120.2 CFM axial fan with electronic commutation (EC), 3400 RPM, locked rotor protection, and fiberglass-reinforced PBT/PA construction.
- EC Motor Technology – Energy-efficient electronic commutation
- Locked Rotor Protection – Automatic fault detection & restart
- Industrial-Grade Materials – Fiberglass-reinforced PBT & PA for durability
ebm-papst AC4300/19H-012 AC Fan – High-Performance Tubeaxial Fan with Electronic Commutation
The ebm-papst AC4300/19H-012 AC Fan is a premium tubeaxial fan designed for high-performance cooling applications where energy efficiency, low noise, and long lifespan are critical. Featuring electronic commutation (EC) technology, this fan delivers 120.2 CFM (3.37 m³/min) airflow at 3400 RPM while maintaining a moderate 51 dB(A) noise level.
With a 115VAC motor and 3-wire leads (including alarm signal capability), the AC4300/19H-012 is optimized for industrial and commercial cooling in:
- Control cabinets (PLC, VFD, servo drives)
- HVAC & ventilation systems
- Telecommunications equipment
- Medical and laboratory devices
- Renewable energy inverters & power supplies
Key Benefits & Features
✔ Electronic Commutation (EC) for Higher Efficiency
- 10-30% lower power consumption vs. traditional AC fans
- Wide voltage range (85-265VAC) – Adapts to unstable power conditions
- Smoother operation & longer lifespan compared to brushed motors
✔ Built-In Protection for Reliability
- Locked rotor protection – Automatic fault detection & restart
- Alarm output wire (3-wire leads) – Notifies system control of fan failure
- IP21-rated enclosure – Protection against large particles & vertical water drops
✔ Robust Construction for Industrial Use
- Frame material: Fiberglass-reinforced Polybutylene Terephthalate (PBT)
- Blade material: Fiberglass-reinforced Polyamide (PA/Nylon)
- Operating temp range: -20°C to +70°C
- Ball bearings with 45,000-hour MTBF @ 40°C – Low-maintenance & long-lasting
Technical Specifications Table
| Attribute | Specification |
|---|---|
| Air Flow | 120.2 CFM (3.37 m³/min) |
| Bearing Type | Ball |
| Features | Alarm, Electronic Commutation (EC), Locked Rotor Protection |
| Frame Material | Polybutylene Terephthalate (PBT), Fiberglass Reinforced |
| Ingress Protection | IP21 |
| Lifetime @ 40°C | 45,000 Hours |
| Noise Level | 51.0 dB(A) |
| Operating Temperature | -20°C ~ 70°C (-4°F ~ 158°F) |
| Power Consumption | 12.00W |
| RPM | 3400 |
| Termination | 3 Wire Leads |
| Voltage – Rated | 115VAC |
| Voltage Range | 85 ~ 265VAC |
AC4300H vs. AC4300/19H-012 vs. AC4300HU – Model Comparison
| Model | AC4300H | AC4300/19H-012 | AC4300HU |
|---|---|---|---|
| Motor Type | Standard AC | EC Motor | Standard AC |
| Protection Features | None | Locked Rotor Protection + Alarm | None |
| Energy Efficiency | Standard | Higher (EC Tech) | Standard |
| Noise Level | ~53 dB(A) | 51 dB(A) | ~55 dB(A) |
| Applications | Basic industrial cooling | Mission-critical systems | High-airflow cooling |
🔹 Best for Efficiency: AC4300/19H-012 (EC Motor, Locked Rotor Protection)
🔹 Best for Cost-Effectiveness: AC4300H (Standard cooling)
🔹 Best for High Airflow: AC4300HU (Enhanced cooling in tight spaces)
Frequently Asked Questions (FAQ)
Q1: Does this fan support speed control?
A: Yes, the EC motor technology allows for PWM (Pulse-Width Modulation) control via the 3rd wire (alarm signal), enabling dynamic speed adjustments for optimized cooling.
Q2: What advantages does EC technology provide?
A:
✔ Higher efficiency → Lower power consumption (~12W for 120 CFM)
✔ Wider voltage range → Better for unstable power grids (85-265VAC)
✔ Smoother operation & reduced motor wear
Q3: What happens if the fan fails?
A: The locked rotor protection will attempt an auto-restart, and if unsuccessful, the alarm wire activates, signaling the system for maintenance.
Q4: Is this fan suitable for outdoor use?
A: While IP21-rated, it is not fully waterproof. For outdoor applications, IP54+ models (like AC4300IP series) are recommended.
Q5: Can it replace a traditional AC fan without modifications?
A: Yes – it fits standard 119×119×32mm mounts and operates on 115VAC, but wiring must account for the 3rd (alarm) wire.
Q6: How loud is 51 dB(A) in real-world terms?
A: Comparable to a quiet office environment (~50 dB) or light rainfall (~55 dB). Much quieter than typical server fans (~60+ dB).
Final Verdict – Why Choose the AC4300/19H-012?
✅ Superior efficiency with EC motor technology
✅ Advanced protection (locked rotor detection + alarm)
✅ Industrial-grade materials for 45,000-hour lifespan
✅ Flexible voltage (85-265VAC) & quieter operation
Ideal for critical cooling in industrial, telecom, and medical equipment, this fan delivers perfect balance of power, efficiency, and reliability.
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