Range of in-line duct centrifugal fans, manufactured from high-grade corrosion-resistant pressed galvanised steel and supplied as standard with a terminal box and a robust mounting foot.
All models include an enclosed type, single-phase external rotor motor with a factory-matched backward curved non-stalling impeller.
(1) Models 355 and 400 are manufactured in sheet steel protected against corrosion by a cathodic protection primer and black polyester paint finish.
Motors
100NK – 250NK models: Motors are IP44, class B insulation with ball bearings, and safety thermal overload protection.
315NK model: motor is IP44, class F insulation with ball bearings, and safety thermal overload protection.
355N and 400N models: Motors are IP54, class F, with ball bearings and safety thermal overload protection.
Electrical supply:
Single-phase 230V-50/60Hz.
Three-phase 230/400V-50Hz (models 355N-T and 400N-T).
All single-phase models are speed controllable by tension.
The three-phase models are speed controllable by frequency inverter