Description
The ebm-papst R3G190-8317075823 (also known as R3G1908317075823) is an unhoused backward-curved motorized EC centrifugal fan from the RadiCal series, driven by an integrated M3G055-CF electronically commutated motor with an impeller diameter of 190 mm (7.48 in). Operating on a single-phase 200 to 240 VAC supply (50/60 Hz), it delivers up to 465 CFM (791 m³/h) of airflow and static pressure up to 3.21 in H₂O (799 Pa) with a rated power draw of 115 W at 3730 RPM. Construction features a durable 7-blade PA plastic impeller, a die-cast aluminum electronics housing, dual ball bearings, and a thick-film passivated rotor engineered for continuous S1 duty in any mounting orientation. The unit provides precision thermal management via an isolated 1 to 10 kHz PWM speed control input, an open-collector tachometer speed feedback signal, soft start, and integrated locked-rotor protection.
Key Features
- Aerodynamic RadiCal Impeller: Optimized 7-blade backward-curved PA plastic geometry delivering 465 CFM (791 m³/h) maximum air delivery and high static efficiency.
- High-Efficiency EC Motor: Integrated M3G055-CF brushless motor consumes only 115 W nominal power across 200 to 240 VAC 50/60 Hz lines.
- Active Interface & Control: Equipped with an isolated 1 to 10 kHz PWM control input and open-collector tachometer output yielding 1 pulse per revolution.
- Robust Industrial Construction: Built with a die-cast aluminum electronics housing, dual maintenance-free ball bearings, and rotor-side condensation drainage holes.
- Comprehensive Electronic Protection: Integrated motor current limiting, soft start acceleration, locked-rotor protection, and Class I grounding safeguard system integrity.
- Flexible Mounting Architecture: Rated IP44 with any-position mounting capability and an optional aerodynamic inlet ring (09576-2-4013) for optimized duct transition.
Technical Specifications
| Manufacturer | ebm-papst |
|---|---|
| Manufacturer Part Number (MPN) | R3G190-8317075823 |
| Alternate Part Number | R3G1908317075823 |
| Integrated Motor Model | M3G055-CF |
| Product Series | RadiCal |
| Product Category | EC Centrifugal Fans |
| Fan / Component Type | Motorized Centrifugal Impeller (Unhoused, Single-Intake) |
| Phase & Supply Type | 1~ Single-Phase AC (EC Integrated Drive) |
| Rated Voltage | 220 VAC |
| Operating Voltage Range | 200 to 240 VAC |
| Frequency | 50 / 60 Hz |
| Speed (RPM) | 3730 RPM (Nominal Max Load) / 3863 RPM (Free Air) |
| Power Rating | 115 W |
| Rated Current | 1.1 A |
| Current Draw at Free Air | 1.04 A |
| Airflow | 465 CFM (791 m³/h) |
| Max. Static Back Pressure | 3.21 in H₂O (799 Pa) |
| Sound Pressure Level (LpA) | 69 dB(A) at 1 m |
| Sound Power Level (LwA) | 77 dB(A) |
| Impeller Diameter | 190 mm (7.48 in) |
| Number of Blades | 7 |
| Impeller Material | PA Plastic |
| Electronics Housing Material | Die-Cast Aluminum |
| Rotor Surface | Thick-Film Passivated |
| Bearing Type | Ball Bearing |
| Direction of Rotation | Clockwise, viewed toward rotor |
| Installation Position | Any (Air inlet upward or horizontal for IP44) |
| Condensation Drainage Holes | On rotor side |
| Operating Mode / Duty Cycle | S1 (Continuous Operation) |
| Weight | 1.4 kg (3.09 lbs) |
| Max. Screw Insertion Depth | 6 mm (0.24 in) |
| Power Cable Specification | PVC 3× 0.5 mm² (Line L: Brown, Neutral N: Blue, PE: Green/Yellow) |
| Control Cable Specification | PVC 3× 0.25 mm² (GND: Blue, Tacho: White, PWM: Yellow) |
| Cable Exit | Variable |
| Speed Control Input | PWM 1 to 10 kHz (Umin 5V, Imax 10 mA; 100% PWM = n_max, 10% PWM = n_min, <8% PWM = n_0) |
| Tachometer Output | Open Collector, 1 pulse per revolution, electrically isolated |
| Motor Protection | Locked-rotor protection, motor current limitation, soft start |
| Touch Current (IEC 60990) | <= 3.5 mA (TN system, measuring network Fig. 4) |
| Electrical Protection Class | Class I (with protective earth connected) |
| Ingress Protection (IP) | IP44 (Air inlet upward or horizontal) |
| Insulation Class | Class B |
| Moisture / Environmental Class | H1 |
| Operating Ambient Temperature | -25°C to +50°C (-13°F to +122°F) |
| Storage / Transport Temperature | -40°C to +80°C (-40°F to +176°F) |
| Compatible Inlet Ring (Accessory) | 09576-2-4013 (Available separately) |
| Product Standard | GB12350 |
| Approvals & Certifications | CCC |
Applications
The ebm-papst R3G190-8317075823 motorized EC centrifugal fan is deployed in compact air conditioning and ventilation systems, commercial heat recovery ventilation (HRV/ERV) units, and cleanroom fan filter units (FFUs). It serves as a high-static pressure cooling solution for data center server rack cooling plenums, industrial power electronics enclosures, and variable frequency drive (VFD) cabinets. Plant engineers and OEM equipment builders also integrate this assembly into ducted laboratory fume extraction devices, medical air purification systems, and precision agricultural climate controllers.
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