STM Neri IE2 (HE2) Motor 0.25kW 3 Phase 4 Pole Frame Size 71 Flange Mount B5

The Neri Motori HE Series (also designated HE2) consists of three-phase high-efficiency induction motors meeting IE2 efficiency standards per IEC 60034-30. These motors use special low-loss laminations to achieve required efficiency levels under regulation 2005/32/CE.​

Key Specifications

Available in 2, 4, 6, and 8 pole configurations for speeds from approximately 600 to 3000 rpm at 50 Hz. Power ratings range from 0.12 kW to 0.55 kW (or higher in extended sizes), with frame sizes starting from 56 up to 90. Voltage rated at 400 V three-phase, 50 Hz, with full load currents from 0.43 A to 1.81 A depending on model.​

Construction Details

Motors feature cast iron or aluminum housings, B3 foot or B5/B14 flange mounting options, and IP55 protection with IC411 cooling via external fan. Moment of inertia (J) varies from 0.00015 kgm² to 0.017 kgm², with weights from 3.2 kg to 16 kg.​

Suitable for standard industrial applications requiring compliance with IE2 efficiency without inverter duty.