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Blauberg Iso-ZS 315 4E max

Sound-insulated centrifugal fans. Maximum air capacity up to 3520 m³/h.
EAN codeEAN4058448017148
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Supply and exhaust ventilation systems installed in premises with high requirements to the noise level.Compatible with Ø 250 or 315 mm round air ducts.


Galvanized steel casing internally filled with 30 mm thermal- and sound-insulating layer made of non-flammable foamed polyurethane.Connecting spigots are equipped with rubber seals.External terminal block for power supply.Lifting lugs facilitate hanging and transportation operations.Modifications with two Ø 250 mm suction spigots are available specifically for multi-port ventilation solutions (Iso-ZS 315/2x250).


Mounted with round air ducts.Suitable for installation in any mounting position with respect to air flow direction in the system, fixed with supports or brackets.Suspended to ceiling with mounting lugs.Flexible air ducts are fixed on fan spigots with clamps.


Four- or six-pole asynchronous motor with external rotor and double intake centrifugal impeller with forward curved blades.The motor is installed on specially designed vibration-damping mounts to absorb vibration and noise.Equipped with ball bearings for longer service life.Integrated thermal protection with automatic restart.Dynamically balanced turbine.


Smooth speed control with an external thyristor controller or step speed control with an external auto transformer (both available upon separate order).


G – temperature and speed controller with external temperature sensor fixed on 4 m cable.GI – temperature and speed controller with a sensor built into the fan casing.
G and GI options are used for automatic speed control depending on indoor temperature. The best ventilation solution for the premises requiring permanent temperature control as greenhouses, orangeries, etc.
W – the fan is equipped with a power cord and a socket or plug (W1).max – high-powered motor.

Parameter Iso-ZS 315 4E max Measurement unit
Voltage 230 V
Phase 1 ˜
Frequency 50 Hz
Current 4.18 A
Power 931 W
Maximum air capacity 3520 m³/h
Sound pressure level at 3 m distance 47 dB(А)
RPM 1430 min-1
Max. operating temperature -20…+50 °С
EC motor no -
Ingress protection rating IPX4 -
Casing material galvanized steel -
Outdoor mounting no -
Sound-insulated casing yes -
Air duct for round air ducts -
Design centrifugal -
Type Exhaust , Supply -
Weight 38.0 kg
Documents archieve
Documents archieve
Iso-ZS - data sheet (pdf 325.83Kb)
Iso-ZS - image (png 740.81Kb)

Type   Dimensions [mm]
D d B B1 H H1 H2 H4 L L1 L2
Iso-ZS 315 4E max (Fig 1) 313 20 650 610 530 367 266 567 735 635 570