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Duct Fan 150-160-500125 mm ML Professional Tubular Fan, Harmann

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Product Code: ML-150-160-500
Dimensions: L: 40cm x W: 30cm x H: 20cm
Weight: 3kg

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Description Specification

Duct Fan 150-160-500125 mm ML Professional Tubular Fan, Harmann

Harmann ML Duct Fan – Efficient and Quiet Ventilation

The Harmann ML is a powerful and energy-efficient duct fan for supply and exhaust air ventilation in residential buildings, offices, shops, and other commercial environments. Its advanced diagonal impeller technology and compact design make it ideal for installations with limited space.

Key Features

Unique diagonal impeller for optimized airflow
Available in multiple sizes: 100 to 200 mm
Three-speed motor with option for external speed control
IP44 protection class – durable and reliable build
Modular design for easy installation and maintenance
Impact-resistant and UV-resistant polymer housing

Advantages of Harmann ML

Flexible installation in any position
Rotatable motor unit for easy access in tight spaces
Minimized airflow turbulence for quieter operation
Long lifespan with ball bearings and thermal protection
Suitable for systems with narrow ducts or multiple components

Applications

Residential houses and villas
Offices and retail spaces
General ventilation in public and commercial buildings
Ventilation systems with filters, silencers, or heaters

Control and Operation

The fans are equipped with a three-speed motor (230V) and can be controlled via an external switch or voltage control. For basic operation, the phase wire is connected to one of the three speed terminals (LA, LB, or LC). Some models also support an adjustable delay-off timer.

Harmann ML Duct Fan – Technical Specifications

Motor: Three-speed asynchronous electric motor 1~230V, 50Hz. A traditional AC motor with selectable speeds using either:

fixed connection (via jumper)
or external switch / voltage regulator

Qmax = Max airflow / Δpmax = Max pressure / LPA = Sound level / Pnom = Power consumption / tOPER = Operating temperature

Model	Article No.	Qmax (m3/h)	ΔPmax (Pa)	Pnom (W)	Pmax (W)	Inom (A)	~	Unom (V)	Umin (V)	nnom (min-1)	LWA (dB)	LPA (dB)	t min (°C)	t max (°C)	⌀Dnom (mm)	Weight (kg)	Class	IP
ML 100/200	72251564	200	150	29	26	0.14	1~	230	120	2250	46	25	-20	50	100	1.40	B	IP44
ML 125/300	72251565	290	145	32	32	0.15	1~	230	120	2250	46	25	-20	50	125	1.40	B	IP44
ML 150-160/500	72251566	520	285	54	54	0.25	1~	230	120	2250	53	32	-20	50	150	1.90	B	IP44
ML 200/830	72251567	855	345	125	125	0.58	1~	230	120	2250	55	34	-20	50	200	2.70	B	IP44

FAQ – Frequently Asked Questions

Can the fan be installed under a suspended ceiling?

Yes, the design allows flexible installation even in tight spaces like above ceiling tiles, thanks to the rotatable motor section.

Is the fan suitable for both supply and exhaust air?

Yes, it works great as both intake and exhaust fan in ventilation systems.

How is the fan speed controlled?

Using either an external 3-speed switch or a voltage regulator in the range of 160–230V.

Does the fan require maintenance?

No, the fan can be easily opened and cleaned without removing the ductwork.

Comparison ML vs. ML EC fans:

Feature	Harmann ML (AC Motor)	Harmann ML EC (EC Motor)
Motor Type	Asynchronous AC, 3-speed	Electronically Commutated (EC)
Energy Efficiency	Medium	High (up to 95%)
Speed Control	Step switch or voltage-based (120–230V)	Stepless 0–10V control
Power Consumption	Fixed at selected speed	Adapts dynamically to demand
Noise Level	Higher at low speeds	Lower and smoother operation
Heat Generation	Moderate	Minimal
Installation Cost	Lower	Higher (but pays off over time)
Suitable For	General ventilation, low-budget projects	Energy-efficient & demand-controlled systems
Smart Building Integration	Limited	Compatible with BMS / automation

Other
Diameter Ø (mm)	150
Max Airflow m3/h	500

Tags: Tubular Fan, Duct Fan, fan, indutrial fan, ventilation