Brook Crompton WE3 IE3 3kW (4HP) three phase 4 pole B3 Foot mounting 100L2 frame AC Induction Motor for 230V or 400V 3 phase supply. Suitable for use with a Variable Frequency Inverter Drive having 1ph or 3ph input and 3ph output, or a fixed frequency three phase mains supply at 50Hz.
Output: 3kW (4HP) at 1420rpm.
Speed Range from an Inverter Supply: 142rpm to 4500rpm (5Hz to 158Hz) derating may be required at the lower speeds due to reduced speed of ventilation fan.
Constant Power Speed Range: 1420rpm to 4500rpm continuously.
Full Load Current with links in Δ (Delta) for 230V 3ph: 10.4A.
Full Load Current with links in Y (Star) for 400V 3ph: 6.0A.
Torque: 20.2Nm
Efficiency: 87.7% (IE3)
Power Factor: 0.82 when mains connected at 50Hz.
Terminal box cable entry: Includes Includes 2 x M25 Gland.
Terminal box position: Top.
Enclosure rating: IP55.
Overall Dimensions: 208mm Wide x 401mm Long (including shaft) x 268mm High (Including Terminal Box)
Mounting: B3 Foot.
Foot mount on 12mm holes at 160mm wide x 140mm centres 63mm back from the shaft shoulder
Shaft: 28mm diameter, 60mm long with 8mm key
Construction: Aluminium
Weight: 31kg
Ambient Temperature: Rated to 40°C.
Ventilation space is required at rear cooling air intake.
Over-Temperature Detection: PTC Thermistors fitted (1 per phase in series).
Part number: 100WN242403 or WE3-100L2-4-B3
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.