RRE & RRM Backward Curved Centrifugal Fans

RRE & RRM Backward Curved Centrifugal Fans

Available with AC or EC External Rotor Motors

We offer high efficiency RRE & RRM backward curved centrifugal impellers, manufactured from either plastic reaction or galvanised sheet steel. Where necessary they can be installed in circular, rectangular, or scroll-shaped housings providing there is sufficient clearance to the side wall. RRE & RRM Ecofit fans provide airflows from 315 to 3300m3/h and a maximum pressure from 100 to 700Pa. Contact us with your requirements, we’ll quickly provide the best fan solution for your application.

High performance motorised impellers and fan modules

Offering a Constant High Degree of Efficiency with EC Motors

Our RRE/RRM range of high performance free running impellers begin at 133 mm up to 315mm. They are fitted with EC motors and are speed controllable, offering optimal efficiency even under partial load.

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Versatile Fans Defined to Suit Your Specific Requirements

The versatile RRE and RRM series of backward curved centrifugal fans can be specifically defined to suit your requirements. They are suitable for most HVAC, filtration or electronic cooling applications. Get in touch to discuss your requirements. 

Available Fan Types

RRE: Motorised impeller.

RRM: Fan module with integrated hearing and mounting stand.

Suitable Applications

•Air filtration
•Fume control
•Refrigeration equipment
•High pressure coils
•Electronic cabinet cooling
•Lamp cooling
•Solarium equipment
•Roof extract units
•In-line duct fans
•Air conditioning cassettes

Available on Request

•Turbine size
•Alarm output
•Air inlet hearing
•Special voltage
•Air inlet louver

Technical Data

The RRE and RRM series of backward curved centrifual fans are available with an AC or EC external rotor motor. AC motors are suited to speed control by voltage variation and EC motors are controlled by an internal entry 0-10V/PWM.

Fan Type Voltage
Power (kW)
Current (A)
Max Temp
IP Rating
GKHM 355-CIG.102.5HF IE Gen3 (IE5) 3~ 380-480 50 / 60 2.33 3.7 at 400V 3120 40 IP54
GKHM 400-CIG.114.6FF IE Gen3 (IE5) 3~ 380-480 50 / 60 4.48 7 at 400V 3170 40 IP54
GKHM 450-CIG.128.6IF IE Gen3 (IE4) 3~ 380-480 50 / 60 5.9 9.05 at 400V 2950 40 IP54
GKHM 500-CIG.143.6NA IE Gen3+ (IE4) 3~ 380-480 50 / 60 7.48 11.4 at 400V 2625 40 IP54
GKHM 560-CIG.160.6NA IE Gen3+ (IE4) 3~ 380-480 50 / 60 6.85 10.7 at 400V 2125 40 IP54
GKHM 630-CIG.180.6NA IE Gen3+ (IE4) 3~ 380-480 50 / 60 5.1 7.88 at 400V 1580 40 IP54