The R1G146-AA11-52 from EBM-Papst is a DC-powered centrifugal fan with forward-curved blades, designed for demanding ventilation and cooling applications. The fan delivers an airflow of 465 m³/h and is powered by an integrated EC motor (M1G074-BF) at 48 V DC. Compact dimensions of 146 × 146 × 72 mm make it easy to integrate into tight spaces.
The fan is ideal for industrial equipment, server rooms, medical devices, and other applications where precise speed control and energy-efficient operation are important. It supports a 0–10 V DC/PWM control signal for smooth regulation.
- Airflow: 465 m³/h (free air, ISO 5801 category A)
- Voltage: 48 V DC (range 36–57 V DC)
- Power: 100 W, rated current 2.6 A
- Speed: 2150 rpm
- EC motor with soft start, tacho signal, and reverse polarity protection
- Ball bearings for long service life and optional mounting position
- Protection class IP42
- Approved according to UL1004-1, CSA C22.2 No. 77, and EAC
At Reserv, we stock EBM-Papst original parts for fast delivery directly to you. Our assortment is managed by an established wholesaler, ensuring genuine components and reliable quality — every time. See the datasheet on the product page for complete technical information.
Technical specifications
Datasheet (PDF) - download| Product attribute | Value |
|---|---|
| Airflow at 0 Pa | 465 m³/h |
| Speed | 2150 rpm |
| Power | 100W |
| Voltage | 48 V DC VAC |
| Motor frame | The fans weigh 1.4 kg and can be mounted in any position. Mounting screws with a maximum 6 mm free space are used for fastening. The fans are approved according to UL1004-1, EAC and CSA C22.2 No. 77. The operating mode is S1 (continuous operation). |
| Impeller | The fan wheel is a forward-curved, single-inlet wheel with a size of 146 mm. It is made of galvanized sheet steel. At a nominal voltage of 48 V DC, an airflow of 465 m³/h is achieved in free air at 2150 rpm. The fan is rated for EC centrifugal fan applications, and performance is measured according to ISO 5801 installation category A. |
| Bearing type | ball bearing |
| IP class | IP42 |
| Motor code | M1G074-BF |
| Rotation direction | clockwise, when facing the rotor |
| Motor type | The motor is an EC motor, type M1G074-BF, with a rated voltage of 48 V DC and a voltage range of 36–57 V DC. The power consumption is 100 W and the rated current is 2.6 A under nominal conditions. The motor is equipped with ball bearings and has insulation class B. Protection class III requires power supply with safety extra-low voltage (SELV). Features include speed signal (tacho), motor current limitation, soft start, 0–10 V DC/PWM control input, and reverse polarity protection. |
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