• Model:09627

Helios SB-250-EC SilentBox Acoustic Inline Fan

£ 1,210.25 (excl. VAT)

£ 1,452.30 (inc. VAT)

■ Installation:
Installation in any position without restriction – horizontally, vertically or pitched – suitable for intake or extract (Exception: SVS must not be installed with the swing-out motor impeller unit facing upward).

■ Motor
Totally enclosed external rotor motor with ball bearings, impregnated windings insulation class F, designed for continuous operation, maintenance free and interference-free.

■ Casing
Like an internal attenuator. Acoustically lined with abrasive resistant 50 mm thick mineral fibreboard. Four quick release clamps permit easy access to motor scroll and impeller set.
Swing out motor and impeller.
Spigots on intake and exhaust twin-seal rubber gaskets fit standard ducts. All parts manufactured from galvanised sheetsteel.

■ Impeller
With backward curved highquality polymer blades. Inflow via inlet cone.

■ Electrical connection
Terminal box (IP 54) is supplied with a 60 cm long electric cable.

■ Motor protection
With thermal contacts wired in series with the windings. To reset the thermal contacts the main supply must be switched off and on.

■ Speed control
Stepless 0 – 100 % using electronic controller or 5 step transformer controller (see table).

■ Protection class
IP 44

■ Casing
Extremely flat casing in longer design with more than 50 mm thick sound-absorbing mineral wool lining and glass fibre surface. The acoustic box which is placed in front of the fan reduces the sound level for the intake significantly. The sound pressure level is reduced to a smaller extent (see sound levels in the tables above the performance curves).

■ The swing out motor and impeller unit permits maintenance and cleaning without disassembly of system components. The swing-out range must be considered for the inspection flap.

■ Impeller
Energy-saving centrifugal impeller with backward curved blades from high quality polymer. Dynamically balanced for low noise operation.

■ Electrical connection
Terminal box (IP 54) mounted on running cable.

■ Motor protection
With thermal contacts wired in series with the windings which automatically reset after cooling.

■ Speed control
Stepless 0 – 100 % by use of electronic controller or 5 step transformer controller (see table).

■ Protection class
When installed in ducting the fan is rated IP 44.

Customers also purchased...

1 x Speed Controller - REB161 x MV-B Dual Switch for use with Helios HQW plate fans,1 x 7 Day Programmable TIMECLOCK1 x Commercial Single or 3 phase Fan Reversing Switch - RS11 x REB-CVF 0-10v Controller1 x FRQ5-10A Inverter Speed controller1 x CBM Low Pressure Centrifugal Fan - CBM 9/7 4 Pole 373watt CVR1 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt VR1 x CBM 9/7 4p 420W RE-VR2 x DPD 12PM Delivery Surcharge1 x CBA-100 Inlet Flange for CBT-1001 x CBM 7/7 147w 4P RE-VR1 x HXP450/6-1 - 6 Pole - Single Phase1 x CBS-100 Outlet Flange for CBT-1003 x Chaysol DA 9/9 3 speed3 x CAD-COMPACT 500 ADVANCED N8 - MVHR unit3 x Soaker Sheet to suit RA8005 x CBM Low Pressure Centrifugal Fan - CBM 9/9 4 Pole 550watt 3V (3-Speed)2 x ELTA - Three Phase Transformer 3amps2 x Flanged Damper 019-0500-STD1 x Universal Pipe Fixing Clip2 x Biflow SB500-CON2-3 - High Temperature Bifurcated Fan5 x CBM Low Pressure Centrifugal Fan - CBM 9/9 4 Pole 550watt C VR2 x Elta Turboflow-TF - 450mm - Single phase3 x Biflow SB250-CON2-3 - High Temperature Bifurcated Fan1 x Vent Axia Trickle & Boost Switch3 x 125mm Round Connector with Damper1 x TUNE-R-200-3-M3 - Control Damper1 x Quietflow SQS250-1ECL - Centrifugal Box Fan5 x 110 x 54mm Short Rectangular to Round Adaptor male2 x Duct Mounted Filter Box With G2 Paper AND Metal Washable Filter - 100mm2 x Run On Timer - 5s - 4hrs - RT5A3 x CBT-100N Centrifugal ATEX II 2G Exe II T32 x 220x90mm Insulated Rectangular T-Piece1 x RDH Flange - 02501 x Backdraught Shutters 039-SFSV-63/713 x VA 9/2 T - High Temp Axial Fan,1 x KBA- Inlet Mounting 1805 x Biflow SB250-CON4-1 - High Temperature Bifurcated Fan1 x Flat Roof Terminal -OFT 5 - EPDM1 x RUCK MTP 30, Stepped Speed control1 x ADH E0-450 Flange - 0450 ADHE/RDHE4 x Atex Inline Fan 180mm - ERM18EXE1 x Duct Termination with Mesh - 200mm4 x 220 x 90mm Duct to Fitting Connector for use with Insulated Thermal Ducting5 x Chaysol da 9-7 - 3 Speed2 x ACOAS/ AC/EC Auto Changeover 8Amp3 x 204 x 60mm Duct to Duct Connector for use with Insulated Thermal Ducting1 x Duct Termination with Mesh - 315mm4 x Spiral Ducting 1 meter - 355mm1 x RF-100 M5 Grade Filter for S&P MVHR units1 x CBM 7/9 6p 72W RE-VR2 x TD ECOWATT 160/100 Inline Duct Fan - TD-ECOWATT1 x DDMP 10-08 FLANGE1 x Twinflow STDL315-1EC1 x RDH Flange - 03151 x Same Day Shipping Surcharge - City Sprint1 x RD31S-4DW.6Q.AL - 121303 (Three Phase)1 x 204x60mm Rectangular to 100mm Round Adaptor1 x Helios ZNE Electronic Fan Overrun Timer1 x DDMP 09-09 1F 1000W M6A1 DA52 x RDH Flange - 04002 x DDMP 12-09 FLANGE1 x ELTA - Single Phase Transformer 2amps2 x Acoustic Box Fans (Inline) - CAB-355 RE1 x Helios VARW 450/4 - TK2 x Elta SLC500/4B-1AC - IP551 x CBP-7/7-RC1 x EMI 150L E2M - Acoustic Inline Mixvent Fan1 x Vent Axia T-Series Wall Model TX9WL3 x Vent Axia W300310 Controller Electronic 1.5A1 x DDMP 09/07 Mounting Flange1 x Stainless steel Mesh Grease Filter - 600x600x50 NON STD1 x Chaysol Da 12/12 CMAL - 1100W 6 Pole - Closed Motor - Three Phase1 x RD31S-4EW.6Q.AL - 122296 (Single Phase)2 x CFI Lite 600 Carbon Filter1 x EX 140A-2 (Three Phase) Centrifugal Fan (ATEX)1 x 204x60mm x 1m Insulated Rectangular Duct1 x Slimline 150 High Efficiency, Low Profile Heat Recovery Unit1 x ACO3/BD Changover Panel (Three Phase)1 x Vortice Quadro Micro 100 IT HCS - Humidistat/Timer Version2 x ELTA - Single Phase Transformer 8amps1 x RDH E0-0400 Mounting Feet (pair)1 x JPA-560 Accessory Adapter Plate1 x Elta Quietflow Twin SQT150-1ECL2 x KBD- outlet mounting flange for CRMT 3554 x Potentiometer EGH 01 - for DDMP Fans1 x Elta Quietflow Twin SQT125-1ECL2 x JMS-5601 x Eco-Loft Positive Input Ventilation System - PIV Loft Mounted -EVL-H1 x Impeller Side Guard - 800mm1 x BDS 400/450 RA b/d shutter1 x Silentub - STUB 2002 x Ancillary Pack for SLC-4001 x Duct Mounted Filter Box With G2 Paper AND Metal Washable Filter - 400mm2 x 220 x 90mm Duct to Duct Connector for use with Insulated Thermal Ducting2 x Impeller Side Guard - 450mm1 x CBS-130 Outlet Flange for CBT-1301 x AL 1120 Mounting Flange2 x 204x60mm Insulated Rectangular T-Piece1 x Elta Quietflow Twin SQT200-1ECL1 x Purlin Box 800 for RAW Cowls1 x Air Quality Sensor - AQS1 x MUB 062 630D4 Multibox1 x EM30-24 Electro-Mechanical Control Panel1 x FlameProof Plate Axial Fan - Single Phase - 15 inches - Eexd IIC T4 -4pole2 x DDMP 07-07 1F 1100W M6AO DA51 x Elta Turboflow-TF - 630mm - Three phase1 x Nicotra RDH G2E7-04501 x RDH Flange - 04501 x Clearflow CF Roof Mounted Vertical Discharge Centrifugal Fan - CF350/4-1AC - Single Phase1 x Access Door for Circular Duct - 250 x 150 - SIZE 151 x Northern Ireland Pallet Surcharge
Reviews
Transformer (silent) speed controller - RE 1.5 Amp
Transformer (silent) speed controller - RE 1.5 Amp
£ 132.29

Unbelievable! With TDmixvent500: noise reduction minimum 50%...