IE5 ultra-premium motor efficiency for explosive environments

11 September 2023

ABB has extended its IE5 SynRM (synchronous reluctance motor) series with the IE5 SynRM Increased Safety motor which is designed to ensure safety, while boosting energy efficiency in hazardous areas.

The new IE5 SynRM motor offers accurate control and high efficiency throughout the whole speed range, even at partial loads. In addition to energy savings, it can help specify a more cost-effective installation. For example, in Zone 1, the cooler running design could allow the use of an increased safety motor where a flameproof motor with a special enclosure would be the traditional choice. While in Zone 2, the improved loadability of SynRM motors, that enables more power to be delivered from the same size as an induction motor, is important. This could enable a smaller, and therefore lower-cost, motor to fulfil the same duty.

A key benefit of IE5 SynRM Increased Safety motors is that they run cooler than standard designs. Bearing temperatures are reduced by up to 15°C and winding temperatures by up to 30°C. This provides increased reliability, prolongs the motor’s lifetime and reduces maintenance needs.

IE5 SynRM Increased Safety motors are available with output power of 5.5 to 315 kilowatt (kW) in frame sizes IEC 132-315.

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