WEG W22 Cast Iron Premium Efficiency (IE3) 37kW 6 Pole 3 phase AC Motor.
250S/M Frame, B3 Foot Mount with top mounted terminal box.
Power: 37kW at 400V or 690V 50Hz.
Speed: 985rpm at 50Hz.
Torque: 359Nm at 50Hz.
Full Load Current with links in DELTA (400V 3ph): 67.2A
Full Load Current with links in STAR (690V 3ph): 39A.
Power Factor: 0.85 when mains connected at 50Hz.
Efficiency: 93.5% (IE3) at 50Hz.
For use with Variable Frequency Drives or a fixed frequency 400V three phase mains supply at 50Hz.
AC Inverter Maximum Speed: 90Hz, 1773rpm. Reduced Torque rating from 50Hz to 90Hz.
AC Inverter Minimum Speed: 5Hz, 98rpm. Reduced Torque rating from 25Hz to 5Hz if continually operated in this speed range.
Performance details of the motor with an AC Inverter are given in the datasheet below.
Set terminal box links 'three a-breast' for 400V 'Delta' connection. Delta connection is required when using a 400V three phase AC Inverter or when connected directly to a 400V three phase mains supply.
Set terminal box links ‘two at one side’ for 690V 'Star' connection.
IP55 TEFC (Totally Enclosed Fan Cooled) IC411. (Fan will rotate the same speed as the motor shaft)
506mm Wide x 965mm Long x 648mm High. (Overall dimensions including shaft)
Foot mount on 24mm holes with 406mm wide x 311/349mm centres 168mm back from shaft shoulder.
Shaft: 65mm diameter x 140mm long.
Motor Housing: Cast Iron.
Weight: 478kg.
Rated at 40C Ambient. (Ventilation space required for air intake)
Thermistors: 1 per phase
Bearings: Ball Bearings. Type: 6314 C3(Drive End). 6314 C3(NDE)
Extended Warranty Available: When purchased with a WEG AC Inverter (see linked products below) the warranty for the motor and the AC Inverter can be extended to 3 years. Terms and Conditions apply, registration process is required.
Part number: 12862755
Drawing and data sheet downloads:
From Jan 1st 2017, three phase electric induction motors with a rated output of 0.75kW to 375kW and efficiency less than IE3 must be equipped with a variable speed drive (Inverter Drive). For exceptions, see EC Commission Regulation 640/2009.