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355 mm and 400 mm øInLineVent
®
SilentBox
® Specially designed to be installed
in-line in circular ducting. High pressure characteristic to overcome
resistances of bends, filters etc.
Universal in application for domestic, commercial and industrial
purposes. Acoustically insulated fans formedium air flow volumes against
high resistances. SilentBox
® SB355 Virtually noisefree fan, with high air flow and pressure.
Ideal for cleaning and maintenance. SilentBox
® SB400 Virtually noisefree fan, with high air flow and pressure.
Ideal for cleaning and maintenance. Special features
Dimensions in mm Dimensions in mm Features of both models Motor Low noise external rotormotor with ball bearings, impregnated windings insulation
class B, designed for continuousoperation, maintenance free andradio suppressed. Installation
Installation in anyposition without restriction:
– horizontally, vertically or pitched– suitable for intake or extract. Compact design to minimisespace and cost using in-line
installation. Casing Like an internal attenuator.Acoustically lined with abrasive resistant 50 mm
thick mineral fibreboard. Fourquick release clasps permit easy access to motor scroll and
impeller set. Pull out motor and
impeller, SB 400 F swinging out. Intake and exhaust spigot fitinto standard duct sizes. Make sure that there is free accessibility to the cover. To
keep sound levels inside the
ventilated rooms as low as possible we recommend the fan is installed as remote as
possible. 100% speed controllable toachieve any required duty. Motor protection Model SB355 C Installation in any position.
with thermal contacts wired in series with the windings.
To reset the thermal contacts themain supply must be switchedoff. Extensive accessory range. Models SB 355 C with two
parallel wired, double inlet
centrifugal fan units.
Spigots on intake and exhaustwith twin-seal rubber gaskets fitinto standard ducts.
All parts manufactured from galvanised sheet steel. Protection SplashprooftoIP44. Models SB 400 F have thermalcontacts wired to the terminal
block and must be connentedto a motor protection unit (accessory MW, Ref. No. 1579). Impeller Low noise forward curved centrifugal impeller, Speed control
housed within an aerodynamically Speed controllable with a transformer speed controller. shaped scroll made from galvanised steel. Bell mouth
shaped inlet ring to achieve optimum air flow. Electrical connection Terminal box (IP 55) is suppliedwith a 60 cm long electric cable.
Technical informationTypeSilentBox ® SB 355 CSilentBox ® SB 400 F Ref. No. 95169517 Connection spigot ø mm355400 Air flow volume (FID) in m 3 /h19252400 R.P.M.22001290 Sound pressure level at 1 meter – Case breakout dB(A)3944 – Air noise intake dB(A)6055 Voltage: Volts/50 Hz230 V / 1 ph.230 V / 1 ph. Power Watts500990 Current Amps2.14.5 Nominal weight in kg4055 Maximum air flow temperature °C4040 Wiring diagram No. SSSS-508SS-536.1 164