• Model:RR2050C

Helios RR-250-C Centrifugal inline fan

£ 180.25 (excl. VAT)

£ 216.30 (inc. VAT)

For medium to smaller air flow volumes against high resistances.
Specifically made for in-duct installation. High pressure characteristic to overcome resistances of bends, filters etc. Universal in application for domestic, commercial and industrial purposes.

Special features
■ Less space required and simple site installation of the compact in line design.
■ Its simplicity reduces site costs.
■ Supply and exhaust air spigots fit all standard circular duct sizes.
■ Power adjustment by 100% variable speed control.
■ Installation in any position.
■ Wide range of accessories.
■ Aerodynamically optimized casing design.

■ Motor
Closed, ball bearing-mounted external rotor motor with humidity protection, insulation class F, for continuous operation, maintenance free and interference free.
■ Motor protection
Automatically switches off and on again after cooling due to built-in thermal contacts with the winding wired in series.
■ Installation
Can be mounted in any position – horizontal, vertical or diagonal – suitable for supply and extract ventilation by correct installation. To minimise the effective noise level it is recommended that the fan is installed as remote as possible from the ventilated space.

■ Casing
Robust casing from galvanised sheet steel for harsh operating conditions. Intake and exhaust Spigots on intake and exhaust fit standard ducts.
■ Speed control
From 0 – 100% by means of electronic controller or step transformer.
■ Electrical connection
Terminal box (IP 54) located on outer casing.
■ Impeller
Centrifugal impeller with backward curved polymer blades. Directly mounted to motor and dynamically balanced as a unit. Low-noise, highly efficient.
■ Protection class
When installed in intake and exhaust ducting and rainwater penetration is prevented, the fan is rated IP 44.


1 x 220 x 90mm Duct to Fitting Connector for use with Insulated Thermal Ducting1 x Small Centrifugal Fans CBM/2-133/190 185w1 x Same Day Shipping Surcharge - City Sprint1 x 220x90mm x 1m Insulated Rectangular Duct1 x Economy Airvent 150mm Fan With Pullcord & Shutters1 x Small Centrifugal Fan - CBM/4-160/150-125 W1 x EBM-Papst D3G133-BF05-14 Double inlet1 x 204x60mm x 1m Insulated Rectangular Duct1 x Economy Airvent 100mm Fan with Timer1 x D2E146-AP47-331 x Biflow SB500-CON2-3 - High Temperature Bifurcated Fan1 x Binks Bullows - Spray Booth Filter1 x Helios HQW-200/2 - IP551 x Speed Controller - REB1-N1 x CBM Low Pressure Centrifugal Fan - CBM 9/7 4 Pole 373watt CVR1 x CBT-80N Centrifugal1 x CBB-60N Centrifugal1 x RUCK MTP 20, 10K, Speed control1 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)1 x D2E-146-AP47-751 x TDP-D Pressure Sensor with Display1 x TEM 035 - 5 Speed Transformer Speed Control1 x DPD 12PM Delivery Surcharge1 x ADH E0-450 Flange - 0450 ADHE/RDHE1 x 204 x 60mm Duct to Fitting Connector for use with Insulated Thermal Ducting1 x 204 x 60mm Duct to Duct Connector for use with Insulated Thermal Ducting2 x Vent Axia ACM 125 inline mixed flow duct fan2 x Transformer (silent) speed controller - RE 3.0 Amp1 x MTP 10, 10K, Speed control1 x Helios TSW 0.3Amp Compact Transformer speed controller2 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan1 x CMT-2 200/80 1.1KW - Single inlet centrifugal fan direct driven1 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE1 x Vent Axia ACM 100 inline mixed flow duct fan1 x ERR 20/1 Centrifugal inline fan1 x Helios TSW 1.5 Amp Transformer speed controller1 x KMBI 180 Connector rectangular/circular to install on the discharge of CMT1 x Vent Axia T-Series Controller2 x CBS-60 Outlet Flange for CSB/CBT-601 x Multi Input Run On Timer - 0 - 20min - CFCU1 x Temperature Controller - EDTW1 x CS2 Current Switch2 x Vent Axia ACM 150 inline mixed flow duct fan2 x Vent Axia ACM 200 inline mixed flow duct fan2 x Systemair Save Connect 2.0 Internet Module1 x REU 7amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost1 x Transformer 5 Speed Controller - ATC1-4TK1 x MV-B Dual Switch for use with Helios HQW plate fans,1 x KMBI 225 Connector rectangular/circular to install on the discharge of CMT2 x DEF-140T Inlet Guard for the CBT-100N1 x Single phase speed controller by auto-transformer - RMB 1.5 Amp2 x Insulated extract Plenum 8+11 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan2 x Insulated extract Plenum 6+11 x Electronic extractor fan speed controller - FSC 1.52 x TG-K3/NTC10-01 - Duct temperature sensor1 x KMBI 250 Connector rectangular/circular to install on the discharge of CMT1 x Single phase speed controller by auto-transformer - RMB 10.0 Amp1 x Helios HQW-200/4 - IP551 x CMT-2 225/090 1.1KW - Single inlet centrifugal fan direct driven1 x Commercial Single or 3 phase Fan Reversing Switch - RS11 x Speed Controller - REB51 x Speed Controller - REB101 x RDH FLEX-SQUARE - ADH/RDH 04501 x SG-200 Fan Guard for the HQW 2001 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR1 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)1 x TUNE-R-200-3-M1 - Control Damper1 x Transformer 5 Speed Controller - ATC1-2TK1 x Remote controller FLEX - for VEKO INT1 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans
Reviews
DAOSL Back Draft Damper
DAOSL Back Draft Damper
£ 11.49

Look good, works well, except the shaft of the lanellae cuts...