FAQ
Q1: What are the key performance specifications of the ebm-papst R2E225-AT51-14 centrifugal fan?
A1: The fan delivers a max airflow of 925 m³/h and max pressure of 500 Pa, powered by a 230V motor with 145W input power. It operates at 2950 rpm, making it suitable for applications requiring robust airflow against moderate resistance, such as industrial enclosures or cooling systems. Its compact 225mm size and 2.34kg weight allow flexible installation, while the 11-blade impeller design enhances airflow efficiency, balancing performance with practicality in space-constrained setups.
Q2: What does the IP44 protection rating depend on for the R2E225-AT51-14?
A2: The IP44 rating (protection against dust and water splashes) is conditional on installation and position, as per EN 60034-5. Proper positioning ensures it resists dust ingress and water splashes from any direction, making it suitable for semi-industrial environments like workshops or equipment rooms. Users must follow mounting guidelines to maintain this protection; improper placement may compromise its resistance to moisture or debris.
Q3: What material is the impeller made of, and how does it benefit the R2E225-AT51-14?
A3: The impeller is crafted from fibreglass-reinforced PA6 plastic. This material combines strength and lightweight properties, supporting the fan’s 2950 rpm speed without excessive weight (contributing to the 2.34kg total mass). Fibreglass reinforcement enhances durability, resisting wear from continuous S1 operation, while PA6 offers corrosion resistance, ensuring long-term performance in environments where traditional metals might degrade.
Q4: What mounting positions are allowed for the R2E225-AT51-14?
A4: The fan can be mounted with the shaft horizontal or rotor on the bottom as standard; rotor-on-top mounting is available on request. This flexibility suits various installation needs, from tight enclosures to open frameworks. It also features rotor-side condensate discharge holes, helping manage moisture buildup in humid conditions (aligned with F1-2 humidity class), ensuring reliable operation across permitted positions.
Q5: What safety features and approvals does the R2E225-AT51-14 have?
A5: It includes a thermal overload protector (TOP) to prevent motor overheating and has a touch current0.75 mA for operator safety. With Class I protection (requiring customer-connected protective earth), it complies with EN 60335-1, CE, CCC, UL 2111, and CSA standards, meeting global safety norms. Insulation Class B (withstands 130°C) adds thermal safety, making it suitable for industrial and commercial cooling applications.
