ERH

The latest innovation in air handling

Engineered for fans, blowers and ventilation systems, ERH integrates seamlessly into the impeller for reliable performance and simplified installation. With robust construction, low vibration and energy-saving operation, the ERH motor is the ideal choice for HVAC and air-handling applications where performance and footprint matter most.

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Technical data

ABB’s ERH external rotor motor integrates motor and drive in a compact design, delivering IES5 ultra-premium efficiency with whisper-quiet operation for demanding HVAC and air-movement applications.

7.5Hp

Power range 1 - 7.5Hp (0.75 - 5.5kW).

IES5

per IEC 61800-9-2 that defines efficiency for Power Drive System (PDS).

IP65

for durability.

3000RPM

rotation speed 1800 to 3000RPM.

Class F

thermal ratings for maximum temperature of 155 °C (311 °F).

30Nm

rated torque.

Explore the key features and benefits

The ABB ERH external rotor motor provides ultra-quiet, IES5-efficient operation in a compact, integrated motor-and-drive design, ideal for data center cooling and fan OEM applications.

Energy efficient
IES5 efficient per IEC 61800-9-2 that defines efficiency for Power Drive System (PDS).
Light & compact
ERH’s lightweight, compact design makes installation and servicing easier, reducing handling effort while simplifying support and maintenance.
Quiet
Whisper-quiet direct drive operation. Fewer mechanical parts mean less vibration and mechanical wear.
Easy startup
ERH comes plug-and-play and pre-configured, with a lightweight design that mounts directly to the fan hub for fast, hassle-free installation.
Shaft grounding
Enhanced bearing protection against EDM.
Durable
IP65-rated enclosure delivers reliable protection against dust and water, ensuring long-term performance even in challenging environments.