EC radial fan ebm-papst R3G250-RR01-H1 RadiCal Ø250 mm, 230 V

EC fan ebm-papst R3G250-RR01-H1 from the RadiCal series is a single-inlet radial fan with backward-curved blades and a rotor diameter of 250 mm. It is powered by single-phase 230 V (rated range 200…277 V, 50/60 Hz), and its speed is controlled by a 0–10 V DC or PWM signal, or via RS-485 MODBUS-RTU. The M3G084-DF motor features integrated PID control, an alarm relay, and thermal protection. The fan is suitable for air handling units, condensers, refrigeration systems, air-conditioning units, and other applications requiring high pressure in compact dimensions.

Features, advantages and benefits

• EC motor with electronic commutation (M3G084-DF) → motor speed is electronically controlled and total efficiency is 60.3% (required minimum 2015: 48.4%) → lower energy consumption and lower operating costs than AC motor fans.
• Rotor with backward-curved blades (7 blades, PA material) → the rotor generates high static pressure up to 1100 Pa at 750 m³/h and operates at a moderate noise level → the fan handles the resistance of heat exchangers, filters and ducts, and at 1235 m³/h and 800 Pa it emits 70 dB(A) on the intake side.
• 0–10 V DC / PWM control and RS-485 MODBUS-RTU → the fan can be connected to a refrigeration controller or BMS system, or adjusted with a 10 kΩ potentiometer supplied from a 10 V DC output (max. 10 mA) → performance can be matched to the instantaneous load of the installation without the need for an additional inverter.
• Built-in PID controller → the fan can maintain a set process value independently based on a sensor signal → a simpler control system, because no external controller is required.
• Alarm relay (floating NC/COM contact, 250 V AC / 2 A, AC1) and operating status display → fan failure is signalled by opening the contact, which can be connected to the controller or supervision system → faults are detected faster and installation overheating is avoided.
• Protection against thermal overload of electronics and motor, current and power limiting, phase loss detection and undervoltage detection → the motor protects itself against improper operating conditions → lower risk of fan damage and less downtime.
• Active PFC and soft start → the fan reduces current distortion drawn from the grid (EN 61000-3-2/3) and does not overload the installation with startup current → more stable operation in systems with multiple consumers.
• Wide supply voltage range 200…277 V, 50/60 Hz → the fan operates under mains voltage fluctuations and different power standards → one version can be used in many devices.
• Cast aluminium housing, IP55 protection rating, insulation class „F”, moisture protection class H1 → the design is resistant to dust, water splashes and humidity, and condensate drainage holes are located on the rotor side → longer motor life in harsh conditions, including refrigeration installations.
• Operating temperature range from -25 to 60 °C, ball bearings, S1 service mode → the fan can operate continuously in cold and hot environments → reliable cooling all year round.

Technical data

Data according to Regulation (EU) 327/2011 (EN 17166)

Mounting dimensions

Dimensions are taken from the manufacturer’s drawing (catalog sheet). Before ordering, please compare them with the technical drawing available from the manufacturer.

Fan performance (50 Hz, 230 V)

Selected operating points from the manufacturer’s datasheet. Air density ρ = 1.15 kg/m³ ± 2%. L_pA is the sound pressure level on the intake side, measured at a distance of 1 m from the fan axis. Values may vary depending on installation conditions.

Electrical connections

Application

• Ventilation and air-conditioning plants, supply and exhaust systems.
• Condensing units and refrigeration equipment.
• Exhaust systems and other installations requiring high pressure generation.
• Installations equipped with controllers with 0–10 V or PWM outputs or MODBUS-RTU communication.

Frequently asked questions (FAQ)

What supply voltage does the R3G250-RR01-H1 fan require?

The fan is powered by a single-phase nominal voltage of 230 V AC. The permissible range is 200…277 V AC at 50/60 Hz.

What power and current does this fan consume?

At maximum load, the fan draws 500 W and 2.2 A at a speed of 3740 min^-1.

How can the rotational speed be regulated?

Speed is regulated by an analog 0–10 V DC or PWM signal, or via the RS-485 MODBUS-RTU interface. A 10 kΩ potentiometer can also be used, powered by the built-in 10 V DC output (max. 10 mA).

What performance does the fan provide?

Maximum free airflow is 2210 m³/h at 4100 min^-1. At 800 Pa, the fan delivers 1235 m³/h, and the maximum measured pressure rise is 1100 Pa at 750 m³/h.

What is the operating temperature range?

The fan can operate in ambient temperatures from -25 to 60 °C. Transport and storage of the motor are permitted at temperatures from -40 to +80 °C.

What protection rating does the fan have?

The fan has an IP55 protection rating, insulation class „F”, and moisture protection class H1. Condensate drainage holes are located on the rotor side.

In what position can the fan be mounted?

The fan is mounted with the shaft horizontal or with the impeller at the bottom. Mounting with the impeller at the top is possible on request from the manufacturer.

What is the rotor rotation direction?

The rotor rotates clockwise when viewed from the rotor side.

Is the intake ring included in the delivery?

No. The intake ring 96359-2-4013 is an accessory and must be ordered separately.

Does the fan have fault signalling?

Yes. The fan has an alarm relay with a floating NC/COM contact (250 V AC / 2 A, AC1), which opens in the event of a fault, and a display for operating status and alarms.

How much does the fan weigh and what is the rotor size?

The fan weighs 3.9 kg and the rotor diameter is 250 mm.