Universal UMHC IE2 55kW (75HP) three phase 4 pole B35 Foot and Flange mounting 250M frame AC Induction Motor for 400V or 690V 3 phase supply. Suitable for use with a Variable Frequency Inverter Drive with 3ph output. Not permitted for use without an Inverter Drive.
Output: 55kW (75HP) x 1480rpm at 400V or 690V x 50Hz 3ph.
Speed Range from an Inverter Supply: 12:1 Range from 148rpm to 1776rpm for 5Hz to 60Hz, when de-rated at the lower speeds.
Constant Power Speed Range: 1480rpm to 1776rpm continuously.
Full Load Current with links in Δ (Delta) for 400V 3ph: 99A.
Full Load Current with links in Y (Star) for 690V 3ph: 57.2A.
Torque: 354.9Nm at 50Hz.
Efficiency: 93.5% (IE2) at 50Hz
Power Factor: 0.86 when mains connected at 50Hz.
Terminal box position: Top.
Enclosure rating: IP55.
Dimensions: 550mm wide x 920mm long x 615mm high overall.
Mounting: Foot mount on 24mm holes at 406mm wide x 349mm centres 168mm back from the shaft shoulder.
Flange mount on 8 x 19mm holes equispaced on 500mm PCD with 450mm diameter spigot in the 550mm diameter flange.
Shaft: 65mm diameter, 140mm long with 18mm key.
Construction: Cast Iron
Cooling: TEFC (Totally Enclosed Fan Cooled) IC411 – Fan runs the same speed as the output shaft.
Weight: 450kg.
Ambient Temperature: Rated to 40°C.
Ventilation space is required at rear cooling air intake.
Over-Temperature Detection: Fitted.
Bearings: Ball Bearing. Type: 6314 C3 (Drive End). 6314 C3 (NDE)
Part number: UMHC 250M-4 B35
Please note that the feet fitted to this motor are part of the body casting and therefore cannot be removed.
Download the Dimensions and Technical Catalogue from the link below:-
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.