Description
The ebm-papst RG125-19/12NM (also known as RG1251912NM) is a high-reliability single-intake DC centrifugal compact blower featuring a low-profile 180 x 180 x 40 mm (7.09 x 7.09 x 1.57 in) FlatPak form factor. Operating on a nominal 12 VDC supply across a flexible 7 to 15 VDC operating window, it delivers 35.3 CFM (60 m³/h) of directional airflow at a rated speed of 1750 RPM while consuming merely 2.0 W. The mechanical architecture incorporates a backward-curved glass-fiber reinforced plastic impeller, a robust composite scroll housing with a galvanized sheet steel baseplate, and precision dual ball bearings rated for 70,000 hours of continuous service at 40 °C. Engineered for mission-critical industrial electronics, it includes built-in reverse polarity and electronic locked-rotor overload protection, terminated via flexible AWG 22 lead wires.
Key Features
- FlatPak Compact Profile: Slim 40 mm depth maximizes high-pressure radial discharge within space-constrained industrial enclosures.
- Energy-Efficient Operation: Consumes only 2.0 watts nominal power across a broad 7 to 15 VDC supply.
- Hybrid Structural Housing: Glass-fiber reinforced plastic scroll with sheet steel mounting plate ensures structural rigidity and resonance damping.
- Precision Ball Bearings: Heavy-duty dual ball bearing system delivers an outstanding 70,000-hour service life at 40 °C.
- Integrated Motor Safeguards: Comprehensive reverse polarity, locked-rotor, and thermal overload protection protect internal drive electronics.
Technical Specifications
| Manufacturer | ebm-papst |
|---|---|
| Manufacturer Part Number (MPN) | RG125-19/12NM |
| Alternate Part Number | RG1251912NM |
| Product Series | RG 125 N |
| Product Category | DC Blower Fans |
| Fan / Component Type | DC Centrifugal Compact Fan (Single Intake Scroll Blower) |
| Supply Type | DC |
| Rated Voltage | 12 VDC |
| Operating Voltage Range | 7.0 to 15.0 VDC |
| Nominal Speed | 1750 RPM |
| Power Consumption | 2.0 W |
| Airflow | 35.3 CFM (60.0 m³/h) |
| Sound Power Level | 4.8 Bel |
| Airflow Direction | Axial intake, radial discharge from outlet |
| Dimensions (L × H × D) | 180 x 180 x 40 mm (7.09 x 7.09 x 1.57 in) |
| Impeller Design | Backward-curved centrifugal impeller |
| Impeller Material | Glass-fiber reinforced plastic |
| Housing Material | Glass-fiber reinforced plastic scroll housing |
| Baseplate Material | Sheet steel |
| Bearing Type | Precision Ball Bearings |
| Operating Weight | 0.730 kg (1.61 lbs) |
| Termination & Cable Specs | 2 Lead Wires, AWG 22, TR 64 |
| Motor Protection | Electronic protection against reverse polarity and locked rotor |
| Locked-Rotor Protection | Locked-rotor and overload protection |
| Operating Temperature Range | -30 °C to +75 °C (-22 °F to +167 °F) |
| Service Life L10 at 40 °C | 70,000 Hours |
| Service Life L10 at Max Temp (75 °C) | 30,000 Hours |
| Approvals & Standards | VDE, CSA, UL, CE, RoHS |
Applications
The ebm-papst RG125-19/12NM blower fan is engineered for forced-air thermal management in telecommunications power racks, embedded computing systems, and automated testing instrumentation. Its shallow FlatPak scroll form factor makes it ideal for ducted spot-cooling across densely packed PCB power stages, laser power sources, and medical laboratory diagnostic analyzers. It is widely utilized as a direct-fit replacement blower across industrial automation chassis, uninterruptible power supply cabinets, and broadcast transmitter equipment.
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