Brook Crompton
WE3 & WE4 Motors

IE3 & IE4 Efficiency

The Brook Crompton WE3 & WE4 motor range is available from 0.12–375kW, providing a cost-effective solution for businesses requiring a reliable Brook Crompton AC motor with IE3 or IE4 efficiency.

Based on the proven W Series design, the WE3 and WE4 deliver lower energy consumption, reduced operating costs and fast payback periods when replacing older, less efficient motors.

Features

Specifications

0.12-375kW

Power Range

63-355

Frame Sizes

IE3 & IE4

Efficiency

AL & CI

Material

2 Year

Warranty

Why THE WE RANGE?

WE3 & WE4 BENEFITS

Multi-Mount

Available on aluminium motors only. The terminal box position can be changed to the left, right or top by repositioning the feet.

The motor can also be converted from foot-mounted to flange-mounted by changing the feet and endshield, allowing more mounting options with shorter lead times

Inverter Duty

Pair the WE3 & WE4 with an inverter for additional energy savings in variable-speed applications such as HVAC systems, centrifugal pumps and process fans.

Lower Running Costs

Available as an IE3 high efficiency motor and an IE4 high efficiency motor, the Brook Crompton WE3 & WE4 reduce energy consumption and operating costs.

Combining high efficiency with low cost, this range delivers a fast return on investment. Request a free payback calculation.

Stock Modifications

In-house mod specialists at BAWCo and Brook Crompton can perform mounting changes, add heaters and thermistors, modify for AC & DC brake kits, plus many more, all within 24 hours.

Applications & Industries

The Brook Crompton WE3 & WE4 motors are widely used across industries requiring reliable, energy-efficient performance at a competitive cost. Available in aluminium and cast iron construction, they are part of the wider Brook Crompton motor range, suitable for both new installations and IE3 and IE4 motor replacements.

Water & Wastewater

Commonly used on clean water pumps, wastewater treatment systems and water processing equipment.

Manufacturing

Ideal for conveyors, compressors, mixers and production equipment.

HVAC & Building Services

Suitable for air handling units (AHUs), ventilation systems, fans and pumps.

Agriculture

Suitable for irrigation pumps, grain handling equipment and agricultural machinery.

Industrial Processing

Used on pumps, fans and machinery operating in continuous-duty applications.

OPTIONS & MODIFICATIONS

BROOK WE3 & WE4 FEATURES

Explore the standard features of the Brook Crompton WE3 & WE4 range, alongside in-house BAWCo stock modifications (reducing leadtimes), and custom-built options from leading European manufacturers. If you need an IE3 motor replacement, all we need is the motor serial number or nameplate details, and we can identify the original specification to supply a like-for-like replacement.

Standard Features

IP55 rated
Cooling- IC411
Steel fan cover
Thermistors
Inverter duty
Insulation class F
Temperature rise class B
Water Blue (RAL 5021)
2-year warranty as standard
(Aluminium Only)
Multi-mount (top box, side box)
(Cast Iron Only)
Paint: C3 epoxy paint
WIMES specification (Aluminium on request)

Stock Modifications

Cooling- IC416 & IC418
IP56, IP65
Anti-condensation heaters
Custom bearings
Special paint systems and colours
Drip-proof canopy
AC & DC brake option
Encoder
Special voltage
Shaft modifications (length, threaded, re-cut keyway)

Custom Builds

Multi-speed
Special shaft / special flange
Insulation class H
Frame size variations
Special paint
Special voltage
Low starting torque
MEPS Australia / New Zealand
575 Volts – Canadian standard
…plus, many more

Brook Crompton WE3 & WE4 Motors

Technical specifications

Custom motors available as factory builds for any speed, frame sizes, or special features not listed

Aluminium
Cast Iron

Power	Speed	Frame Size	IE Rating	Mounting Options
0.18	2 Pole (3000rpm)	WE3-63M1-2	IE3	B3, B5, B14, B34, B35
0.25	2 Pole (3000rpm)	WE3-63M2-2	IE3	B3, B5, B14, B34, B35
0.37	2 Pole (3000rpm)	WE3-71M1-2	IE3	B3, B5, B14, B34, B35
0.55	2 Pole (3000rpm)	WE3-71M2-2	IE3	B3, B5, B14, B34, B35
0.75	2 Pole (3000rpm)	WE3-80M1-2	IE3	B3, B5, B14, B34, B35
1.1	2 Pole (3000rpm)	WE3-80M2-2	IE3	B3, B5, B14, B34, B35
1.5	2 Pole (3000rpm)	WE3-90S-2	IE3	B3, B5, B14, B34, B35
2.2	2 Pole (3000rpm)	WE3-90L-2	IE3	B3, B5, B14, B34, B35
3	2 Pole (3000rpm)	WE3-100L-2	IE3	B3, B5, B14, B34, B35
4	2 Pole (3000rpm)	WE3-112M-2	IE3	B3, B5, B14, B34, B35
5.5	2 Pole (3000rpm)	WE3-132S1-2	IE3	B3, B5, B35
7.5	2 Pole (3000rpm)	WE3-132S2-2	IE3	B3, B5, B35
11	2 Pole (3000rpm)	WE3-160M1-2	IE3	B3, B5, B35
15	2 Pole (3000rpm)	WE3-160M2-2	IE3	B3, B5, B35
18.5	2 Pole (3000rpm)	WE3-160L-2	IE3	B3, B5, B35
0.12	4 Pole (1500rpm)	WE3-63M1-4	IE3	B3, B5, B14, B34, B35
0.18	4 Pole (1500rpm)	WE3-63M2-4	IE3	B3, B5, B14, B34, B35
0.25	4 Pole (1500rpm)	WE3-71M1-4	IE3	B3, B5, B14, B34, B35
0.37	4 Pole (1500rpm)	WE3-71M2-4	IE3	B3, B5, B14, B34, B35
0.55	4 Pole (1500rpm)	WE3-80M1-4	IE3	B3, B5, B14, B34, B35
0.75	4 Pole (1500rpm)	WE3-80M2-4	IE3	B3, B5, B14, B34, B35
1.1	4 Pole (1500rpm)	WE3-90S-4	IE3	B3, B5, B14, B34, B35
1.5	4 Pole (1500rpm)	WE3-90L-4	IE3	B3, B5, B14, B34, B35
2.2	4 Pole (1500rpm)	WE3-100L1-4	IE3	B3, B5, B14, B34, B35
3	4 Pole (1500rpm)	WE3-100L2-4	IE3	B3, B5, B14, B34, B35
4	4 Pole (1500rpm)	WE3-112M-4	IE3	B3, B5, B14, B34, B35
5.5	4 Pole (1500rpm)	WE3-132S-4	IE3	B3, B5, B35
7.5	4 Pole (1500rpm)	WE3-132M-4	IE3	B3, B5, B35
11	4 Pole (1500rpm)	WE3-160M-4	IE3	B3, B5, B35
15	4 Pole (1500rpm)	WE3-160L-4	IE3	B3, B5, B35
0.12	6 Pole (1000rpm)	WE3-63M-6	IE3	B3, B5, B14, B34, B35
0.18	6 Pole (1000rpm)	WE3-71M1-6	IE3	B3, B5, B14, B34, B35
0.25	6 Pole (1000rpm)	WE3-71M2-6	IE3	B3, B5, B14, B34, B35
0.37	6 Pole (1000rpm)	WE3-80M1-6	IE3	B3, B5, B14, B34, B35
0.55	6 Pole (1000rpm)	WE3-80M2-6	IE3	B3, B5, B14, B34, B35
0.75	6 Pole (1000rpm)	WE3-90S-6	IE3	B3, B5, B14, B34, B35
1.1	6 Pole (1000rpm)	WE3-90L-6	IE3	B3, B5, B14, B34, B35
1.5	6 Pole (1000rpm)	WE3-100L-6	IE3	B3, B5, B14, B34, B35
2.2	6 Pole (1000rpm)	WE3-112M-6	IE3	B3, B5, B14, B34, B35
3	6 Pole (1000rpm)	WE3-132S-6	IE3	B3, B5, B35
4	6 Pole (1000rpm)	WE3-132M1-6	IE3	B3, B5, B35
5.5	6 Pole (1000rpm)	WE3-132M2-6	IE3	B3, B5, B35
7.5	6 Pole (1000rpm)	WE3-160M-6	IE3	B3, B5, B35
11	6 Pole (1000rpm)	WE3-160L-6	IE3	B3, B5, B35
0.18	8 Pole (750rpm)	WE3-80M1-8	IE3	B3, B5, B14, B34, B35
0.25	8 Pole (750rpm)	WE3-80M2-8	IE3	B3, B5, B14, B34, B35
0.37	8 Pole (750rpm)	WE3-90S-8	IE3	B3, B5, B14, B34, B35
0.55	8 Pole (750rpm)	WE3-90L-8	IE3	B3, B5, B14, B34, B35
0.75	8 Pole (750rpm)	WE3-100L-8	IE3	B3, B5, B14, B34, B35
1.1	8 Pole (750rpm)	WE3-100L2-8	IE3	B3, B5, B14, B34, B35
1.5	8 Pole (750rpm)	WE3-112M-8	IE3	B3, B5, B14, B34, B35
2.2	8 Pole (750rpm)	WE3-132S-8	IE3	B3, B5, B35
3	8 Pole (750rpm)	WE3-132M-8	IE3	B3, B5, B35
4	8 Pole (750rpm)	WE3-160M1-8	IE3	B3, B5, B35
5.5	8 Pole (750rpm)	WE3-160M2-8	IE3	B3, B5, B35
0.37	2 Pole (3000rpm)	WE4-71M1-2	IE4	B3, B5, B14, B34, B35
0.55	2 Pole (3000rpm)	WE4-71M2-2	IE4	B3, B5, B14, B34, B35
0.75	2 Pole (3000rpm)	WE4-80M1-2	IE4	B3, B5, B14, B34, B35
1.1	2 Pole (3000rpm)	WE4-80M2-2	IE4	B3, B5, B14, B34, B35
1.5	2 Pole (3000rpm)	WE4-90S-2	IE4	B3, B5, B14, B34, B35
2.2	2 Pole (3000rpm)	WE4-90L-2	IE4	B3, B5, B14, B34, B35
3	2 Pole (3000rpm)	WE4-100L-2	IE4	B3, B5, B14, B34, B35
4	2 Pole (3000rpm)	WE4-112M-2	IE4	B3, B5, B14, B34, B35
5.5	2 Pole (3000rpm)	WE4-132S1-2	IE4	B3, B5, B35
7.5	2 Pole (3000rpm)	WE4-132S2-2	IE4	B3, B5, B35
11	2 Pole (3000rpm)	WE4-160M1-2	IE4	B3, B5, B35
15	2 Pole (3000rpm)	WE4-160M2-2	IE4	B3, B5, B35
18.5	2 Pole (3000rpm)	WE4-160L-2	IE4	B3, B5, B35
0.25	4 Pole (1500rpm)	WE4-71M1-4	IE4	B3, B5, B14, B34, B35
0.37	4 Pole (1500rpm)	WE4-71M2-4	IE4	B3, B5, B14, B34, B35
0.55	4 Pole (1500rpm)	WE4-80M1-4	IE4	B3, B5, B14, B34, B35
0.75	4 Pole (1500rpm)	WE4-80M2-4	IE4	B3, B5, B14, B34, B35
1.1	4 Pole (1500rpm)	WE4-90S-4	IE4	B3, B5, B14, B34, B35
1.5	4 Pole (1500rpm)	WE4-90L-4	IE4	B3, B5, B14, B34, B35
2.2	4 Pole (1500rpm)	WE4-100L1-4	IE4	B3, B5, B14, B34, B35
3	4 Pole (1500rpm)	WE4-100L2-4	IE4	B3, B5, B14, B34, B35
4	4 Pole (1500rpm)	WE4-112M-4	IE4	B3, B5, B14, B34, B35
5.5	4 Pole (1500rpm)	WE4-132S-4	IE4	B3, B5, B35
7.5	4 Pole (1500rpm)	WE4-132M-4	IE4	B3, B5, B35
11	4 Pole (1500rpm)	WE4-160M-4	IE4	B3, B5, B35
15	4 Pole (1500rpm)	WE4-160L-4	IE4	B3, B5, B35
0.55	6 Pole (1000rpm)	WE4-80M2-6	IE4	B3, B5, B14, B34, B35
0.75	6 Pole (1000rpm)	WE4-90S-6	IE4	B3, B5, B14, B34, B35
1.1	6 Pole (1000rpm)	WE4-90L-6	IE4	B3, B5, B14, B34, B35
1.5	6 Pole (1000rpm)	WE4-100L-6	IE4	B3, B5, B14, B34, B35
2.2	6 Pole (1000rpm)	WE4-112M-6	IE4	B3, B5, B14, B34, B35
3	6 Pole (1000rpm)	WE4-132S-6	IE4	B3, B5, B35
4	6 Pole (1000rpm)	WE4-132M1-6	IE4	B3, B5, B35
5.5	6 Pole (1000rpm)	WE4-132M2-6	IE4	B3, B5, B35
7.5	6 Pole (1000rpm)	WE4-160M-6	IE4	B3, B5, B35
11	6 Pole (1000rpm)	WE4-160L-6	IE4	B3, B5, B35

Power	Speed	Frame Size	IE Rating	Mounting Options
0.75	2 Pole (3000rpm)	WE3-80M1-2	IE3	B3, B5, B14, B34, B35
1.1	2 Pole (3000rpm)	WE3-80M2-2	IE3	B3, B5, B14, B34, B35
1.5	2 Pole (3000rpm)	WE3-90S-2	IE3	B3, B5, B14, B34, B35
2.2	2 Pole (3000rpm)	WE3-90L-2	IE3	B3, B5, B14, B34, B35
3	2 Pole (3000rpm)	WE3-100L-2	IE3	B3, B5, B14, B34, B35
4	2 Pole (3000rpm)	WE3-112M-2	IE3	B3, B5, B14, B34, B35
5.5	2 Pole (3000rpm)	WE3-132S1-2	IE3	B3, B5, B14, B34, B35
7.5	2 Pole (3000rpm)	WE3-132S2-2	IE3	B3, B5, B14, B34, B35
11	2 Pole (3000rpm)	WE3-160M1-2	IE3	B3, B5, B35
15	2 Pole (3000rpm)	WE3-160M2-2	IE3	B3, B5, B35
18.5	2 Pole (3000rpm)	WE3-160L-2	IE3	B3, B5, B35
22	2 Pole (3000rpm)	WE3-180M-2	IE3	B3, B5, B35
30	2 Pole (3000rpm)	WE3-200L1-2	IE3	B3, B5, B35
37	2 Pole (3000rpm)	WE3-200L2-2	IE3	B3, B5, B35
45	2 Pole (3000rpm)	WE3-225M-2	IE3	B3, B5, B35
55	2 Pole (3000rpm)	WE3-250M-2	IE3	B3, B5, B35
75	2 Pole (3000rpm)	WE3-280S-2	IE3	B3, B5, B35
90	2 Pole (3000rpm)	WE3-280M-2	IE3	B3, B5, B35
110	2 Pole (3000rpm)	WE3-315S-2	IE3	B3, B5, B35
132	2 Pole (3000rpm)	WE3-315M-2	IE3	B3, B5, B35
160	2 Pole (3000rpm)	WE3-315L1-2	IE3	B3, B5, B35
185	2 Pole (3000rpm)	WE3-315L2-2	IE3	B3, B5, B35
200	2 Pole (3000rpm)	WE3-315L3-2	IE3	B3, B5, B35
220	2 Pole (3000rpm)	WE3-355M1-2	IE3	B3, B5, B35
250	2 Pole (3000rpm)	WE3-355M2-2	IE3	B3, B5, B35
280	2 Pole (3000rpm)	WE3-355L1-2	IE3	B3, B5, B35
315	2 Pole (3000rpm)	WE3-355L2-2	IE3	B3, B5, B35
355	2 Pole (3000rpm)	WE3-3551-2	IE3	B3, B5, B35
0.55	4 Pole (1500rpm)	WE3-80M1-4	IE3	B3, B5, B14, B34, B35
0.75	4 Pole (1500rpm)	WE3-80M2-4	IE3	B3, B5, B14, B34, B35
1.1	4 Pole (1500rpm)	WE3-90S-4	IE3	B3, B5, B14, B34, B35
1.5	4 Pole (1500rpm)	WE3-90L-4	IE3	B3, B5, B14, B34, B35
2.2	4 Pole (1500rpm)	WE3-100L1-4	IE3	B3, B5, B14, B34, B35
3	4 Pole (1500rpm)	WE3-100L2-4	IE3	B3, B5, B14, B34, B35
4	4 Pole (1500rpm)	WE3-112M-4	IE3	B3, B5, B14, B34, B35
5.5	4 Pole (1500rpm)	WE3-132S-4	IE3	B3, B5, B14, B34, B35
7.5	4 Pole (1500rpm)	WE3-132M-4	IE3	B3, B5, B14, B34, B35
11	4 Pole (1500rpm)	WE3-160M-4	IE3	B3, B5, B35
15	4 Pole (1500rpm)	WE3-160L-4	IE3	B3, B5, B35
18.5	4 Pole (1500rpm)	WE3-180M-4	IE3	B3, B5, B35
22	4 Pole (1500rpm)	WE3-180L-4	IE3	B3, B5, B35
30	4 Pole (1500rpm)	WE3-200L-4	IE3	B3, B5, B35
37	4 Pole (1500rpm)	WE3-225S-4	IE3	B3, B5, B35
45	4 Pole (1500rpm)	WE3-225M-4	IE3	B3, B5, B35
55	4 Pole (1500rpm)	WE3-250M-4	IE3	B3, B5, B35
75	4 Pole (1500rpm)	WE3-280S-4	IE3	B3, B5, B35
90	4 Pole (1500rpm)	WE3-280M-4	IE3	B3, B5, B35
110	4 Pole (1500rpm)	WE3-315S-4	IE3	B3, B5, B35
132	4 Pole (1500rpm)	WE3-315M-4	IE3	B3, B5, B35
160	4 Pole (1500rpm)	WE3-315L1-4	IE3	B3, B5, B35
185	4 Pole (1500rpm)	WE3-315L2-4	IE3	B3, B5, B35
200	4 Pole (1500rpm)	WE3-315L3-4	IE3	B3, B5, B35
220	4 Pole (1500rpm)	WE3-355M1-4	IE3	B3, B5, B35
250	4 Pole (1500rpm)	WE3-355M2-4	IE3	B3, B5, B35
280	4 Pole (1500rpm)	WE3-355L1-4	IE3	B3, B5, B35
315	4 Pole (1500rpm)	WE3-355L2-4	IE3	B3, B5, B35
355	4 Pole (1500rpm)	WE3-3551-4	IE3	B3, B5, B35
0.37	6 Pole (1000rpm)	WE3-80M1-6	IE3	B3, B5, B14, B34, B35
0.55	6 Pole (1000rpm)	WE3-80M2-6	IE3	B3, B5, B14, B34, B35
0.75	6 Pole (1000rpm)	WE3-90S-6	IE3	B3, B5, B14, B34, B35
1.1	6 Pole (1000rpm)	WE3-90L-6	IE3	B3, B5, B14, B34, B35
1.5	6 Pole (1000rpm)	WE3-100L-6	IE3	B3, B5, B14, B34, B35
2.2	6 Pole (1000rpm)	WE3-112M-6	IE3	B3, B5, B14, B34, B35
3	6 Pole (1000rpm)	WE3-132S-6	IE3	B3, B5, B14, B34, B35
4	6 Pole (1000rpm)	WE3-132M1-6	IE3	B3, B5, B14, B34, B35
5.5	6 Pole (1000rpm)	WE3-132M2-6	IE3	B3, B5, B14, B34, B35
7.5	6 Pole (1000rpm)	WE3-160M-6	IE3	B3, B5, B35
11	6 Pole (1000rpm)	WE3-160L-6	IE3	B3, B5, B35
15	6 Pole (1000rpm)	WE3-180L-6	IE3	B3, B5, B35
18.5	6 Pole (1000rpm)	WE3-200L1-6	IE3	B3, B5, B35
22	6 Pole (1000rpm)	WE3-200L2-6	IE3	B3, B5, B35
30	6 Pole (1000rpm)	WE3-225M-6	IE3	B3, B5, B35
37	6 Pole (1000rpm)	WE3-250M-6	IE3	B3, B5, B35
45	6 Pole (1000rpm)	WE3-280S-6	IE3	B3, B5, B35
55	6 Pole (1000rpm)	WE3-280M-6	IE3	B3, B5, B35
75	6 Pole (1000rpm)	WE3-315S-6	IE3	B3, B5, B35
90	6 Pole (1000rpm)	WE3-315M-6	IE3	B3, B5, B35
110	6 Pole (1000rpm)	WE3-315L1-6	IE3	B3, B5, B35
132	6 Pole (1000rpm)	WE3-315L2-6	IE3	B3, B5, B35
160	6 Pole (1000rpm)	WE3-355M1-6	IE3	B3, B5, B35
185	6 Pole (1000rpm)	WE3-355M2-6	IE3	B3, B5, B35
200	6 Pole (1000rpm)	WE3-355M3-6	IE3	B3, B5, B35
220	6 Pole (1000rpm)	WE3-355L1-6	IE3	B3, B5, B35
250	6 Pole (1000rpm)	WE3-355L2-6	IE3	B3, B5, B35
280	6 Pole (1000rpm)	WE3-3551-6	IE3	B3, B5, B35
0.18	8 Pole (750rpm)	WE3-80M1-8	IE4	B3, B5, B14, B34, B35
0.25	8 Pole (750rpm)	WE3-80M2-8	IE4	B3, B5, B14, B34, B35
0.37	8 Pole (750rpm)	WE3-90S-8	IE4	B3, B5, B14, B34, B35
0.55	8 Pole (750rpm)	WE3-90L-8	IE4	B3, B5, B14, B34, B35
0.75	8 Pole (750rpm)	WE3-100L-8	IE4	B3, B5, B14, B34, B35
1.1	8 Pole (750rpm)	WE3-100L2-8	IE4	B3, B5, B14, B34, B35
1.5	8 Pole (750rpm)	WE3-112M-8	IE4	B3, B5, B14, B34, B35
2.2	8 Pole (750rpm)	WE3-132S-8	IE4	B3, B5, B14, B34, B35
3	8 Pole (750rpm)	WE3-132M-8	IE4	B3, B5, B14, B34, B35
4	8 Pole (750rpm)	WE3-160M1-8	IE4	B3, B5, B35
5.5	8 Pole (750rpm)	WE3-160M2-8	IE4	B3, B5, B35
7.5	8 Pole (750rpm)	WE3-160L-8	IE4	B3, B5, B35
11	8 Pole (750rpm)	WE3-180L-8	IE4	B3, B5, B35
15	8 Pole (750rpm)	WE3-200L-8	IE4	B3, B5, B35
18.5	8 Pole (750rpm)	WE3-225S-8	IE4	B3, B5, B35
22	8 Pole (750rpm)	WE3-255M-8	IE4	B3, B5, B35
30	8 Pole (750rpm)	WE3-250M-8	IE4	B3, B5, B35
37	8 Pole (750rpm)	WE3-280S-8	IE4	B3, B5, B35
45	8 Pole (750rpm)	WE3-280M-8	IE4	B3, B5, B35
55	8 Pole (750rpm)	WE3-315S-8	IE4	B3, B5, B35
75	8 Pole (750rpm)	WE3-315M-8	IE4	B3, B5, B35
90	8 Pole (750rpm)	WE3-315L1-8	IE4	B3, B5, B35
110	8 Pole (750rpm)	WE3-315L2-8	IE4	B3, B5, B35
132	8 Pole (750rpm)	WE3-355M1-8	IE4	B3, B5, B35
160	8 Pole (750rpm)	WE3-355M2-8	IE4	B3, B5, B35
200	8 Pole (750rpm)	WE3-355L-8	IE4	B3, B5, B35
0.75	2 Pole (3000rpm)	WE4-80M1-2	IE4	B3, B5, B14, B34, B35
1.1	2 Pole (3000rpm)	WE4-80M2-2	IE4	B3, B5, B14, B34, B35
1.5	2 Pole (3000rpm)	WE4-90S-2	IE4	B3, B5, B14, B34, B35
2.2	2 Pole (3000rpm)	WE4-90L-2	IE4	B3, B5, B14, B34, B35
3	2 Pole (3000rpm)	WE4-100L-2	IE4	B3, B5, B14, B34, B35
4	2 Pole (3000rpm)	WE4-112M-2	IE4	B3, B5, B14, B34, B35
5.5	2 Pole (3000rpm)	WE4-132S1-2	IE4	B3, B5, B14, B34, B35
7.5	2 Pole (3000rpm)	WE4-132S2-2	IE4	B3, B5, B14, B34, B35
11	2 Pole (3000rpm)	WE4-160M1-2	IE4	B3, B5, B35
15	2 Pole (3000rpm)	WE4-160M2-2	IE4	B3, B5, B35
18.5	2 Pole (3000rpm)	WE4-160L-2	IE4	B3, B5, B35
22	2 Pole (3000rpm)	WE4-180M-2	IE4	B3, B5, B35
30	2 Pole (3000rpm)	WE4-200L1-2	IE4	B3, B5, B35
37	2 Pole (3000rpm)	WE4-200L2-2	IE4	B3, B5, B35
45	2 Pole (3000rpm)	WE4-225M-2	IE4	B3, B5, B35
55	2 Pole (3000rpm)	WE4-250M-2	IE4	B3, B5, B35
75	2 Pole (3000rpm)	WE4-280S-2	IE4	B3, B5, B35
90	2 Pole (3000rpm)	WE4-280M-2	IE4	B3, B5, B35
110	2 Pole (3000rpm)	WE4-315S-2	IE4	B3, B5, B35
132	2 Pole (3000rpm)	WE4-315M-2	IE4	B3, B5, B35
160	2 Pole (3000rpm)	WE4-315L1-2	IE4	B3, B5, B35
185	2 Pole (3000rpm)	WE4-315L2-2	IE4	B3, B5, B35
200	2 Pole (3000rpm)	WE4-315L3-2	IE4	B3, B5, B35
220	2 Pole (3000rpm)	WE4-355M1-2	IE4	B3, B5, B35
250	2 Pole (3000rpm)	WE4-355M2-2	IE4	B3, B5, B35
280	2 Pole (3000rpm)	WE4-355L1-2	IE4	B3, B5, B35
315	2 Pole (3000rpm)	WE4-355L2-2	IE4	B3, B5, B35
355	2 Pole (3000rpm)	WE4-3551-2	IE4	B3, B5, B35
0.55	4 Pole (1500rpm)	WE4-80M1-4	IE4	B3, B5, B14, B34, B35
0.75	4 Pole (1500rpm)	WE4-80M2-4	IE4	B3, B5, B14, B34, B35
1.1	4 Pole (1500rpm)	WE4-90S-4	IE4	B3, B5, B14, B34, B35
1.5	4 Pole (1500rpm)	WE4-90L-4	IE4	B3, B5, B14, B34, B35
2.2	4 Pole (1500rpm)	WE4-100L1-4	IE4	B3, B5, B14, B34, B35
3	4 Pole (1500rpm)	WE4-100L2-4	IE4	B3, B5, B14, B34, B35
4	4 Pole (1500rpm)	WE4-112M-4	IE4	B3, B5, B14, B34, B35
5.5	4 Pole (1500rpm)	WE4-132S-4	IE4	B3, B5, B14, B34, B35
7.5	4 Pole (1500rpm)	WE4-132M-4	IE4	B3, B5, B14, B34, B35
11	4 Pole (1500rpm)	WE4-160M-4	IE4	B3, B5, B35
15	4 Pole (1500rpm)	WE4-160L-4	IE4	B3, B5, B35
18.5	4 Pole (1500rpm)	WE4-180M-4	IE4	B3, B5, B35
22	4 Pole (1500rpm)	WE4-180L-4	IE4	B3, B5, B35
30	4 Pole (1500rpm)	WE4-200L-4	IE4	B3, B5, B35
37	4 Pole (1500rpm)	WE4-225S-4	IE4	B3, B5, B35
45	4 Pole (1500rpm)	WE4-225M-4	IE4	B3, B5, B35
55	4 Pole (1500rpm)	WE4-250M-4	IE4	B3, B5, B35
75	4 Pole (1500rpm)	WE4-280S-4	IE4	B3, B5, B35
90	4 Pole (1500rpm)	WE4-280M-4	IE4	B3, B5, B35
110	4 Pole (1500rpm)	WE4-315S-4	IE4	B3, B5, B35
132	4 Pole (1500rpm)	WE4-315M-4	IE4	B3, B5, B35
160	4 Pole (1500rpm)	WE4-315L1-4	IE4	B3, B5, B35
185	4 Pole (1500rpm)	WE4-315L2-4	IE4	B3, B5, B35
200	4 Pole (1500rpm)	WE4-315L3-4	IE4	B3, B5, B35
220	4 Pole (1500rpm)	WE4-355M1-4	IE4	B3, B5, B35
250	4 Pole (1500rpm)	WE4-355M2-4	IE4	B3, B5, B35
280	4 Pole (1500rpm)	WE4-355L1-4	IE4	B3, B5, B35
315	4 Pole (1500rpm)	WE4-355L2-4	IE4	B3, B5, B35
355	4 Pole (1500rpm)	WE4-3551-4	IE4	B3, B5, B35
0.37	6 Pole (1000rpm)	WE4-80M1-6	IE4	B3, B5, B14, B34, B35
0.55	6 Pole (1000rpm)	WE4-80M2-6	IE4	B3, B5, B14, B34, B35
0.75	6 Pole (1000rpm)	WE4-90S-6	IE4	B3, B5, B14, B34, B35
1.1	6 Pole (1000rpm)	WE4-90L-6	IE4	B3, B5, B14, B34, B35
1.5	6 Pole (1000rpm)	WE4-100L-6	IE4	B3, B5, B14, B34, B35
2.2	6 Pole (1000rpm)	WE4-112M-6	IE4	B3, B5, B14, B34, B35
3	6 Pole (1000rpm)	WE4-132S-6	IE4	B3, B5, B14, B34, B35
4	6 Pole (1000rpm)	WE4-132M1-6	IE4	B3, B5, B14, B34, B35
5.5	6 Pole (1000rpm)	WE4-132M2-6	IE4	B3, B5, B14, B34, B35
7.5	6 Pole (1000rpm)	WE4-160M-6	IE4	B3, B5, B35
11	6 Pole (1000rpm)	WE4-160L-6	IE4	B3, B5, B35
15	6 Pole (1000rpm)	WE4-180L-6	IE4	B3, B5, B35
18.5	6 Pole (1000rpm)	WE4-200L1-6	IE4	B3, B5, B35
22	6 Pole (1000rpm)	WE4-200L2-6	IE4	B3, B5, B35
30	6 Pole (1000rpm)	WE4-225M-6	IE4	B3, B5, B35
37	6 Pole (1000rpm)	WE4-250M-6	IE4	B3, B5, B35
45	6 Pole (1000rpm)	WE4-280S-6	IE4	B3, B5, B35
55	6 Pole (1000rpm)	WE4-280M-6	IE4	B3, B5, B35
75	6 Pole (1000rpm)	WE4-315S-6	IE4	B3, B5, B35
90	6 Pole (1000rpm)	WE4-315M-6	IE4	B3, B5, B35
110	6 Pole (1000rpm)	WE4-315L1-6	IE4	B3, B5, B35
132	6 Pole (1000rpm)	WE4-315L2-6	IE4	B3, B5, B35
160	6 Pole (1000rpm)	WE4-355M1-6	IE4	B3, B5, B35
185	6 Pole (1000rpm)	WE4-355M2-6	IE4	B3, B5, B35
200	6 Pole (1000rpm)	WE4-355M3-6	IE4	B3, B5, B35
220	6 Pole (1000rpm)	WE4-355L1-6	IE4	B3, B5, B35
250	6 Pole (1000rpm)	WE4-355L2-6	IE4	B3, B5, B35
280	6 Pole (1000rpm)	WE4-3551-6	IE4	B3, B5, B35
0.18	8 Pole (750rpm)	WE4-80M1-8	IE4	B3, B5, B14, B34, B35
0.25	8 Pole (750rpm)	WE4-80M2-8	IE4	B3, B5, B14, B34, B35
0.37	8 Pole (750rpm)	WE4-90S-8	IE4	B3, B5, B14, B34, B35
0.55	8 Pole (750rpm)	WE4-90L-8	IE4	B3, B5, B14, B34, B35
0.75	8 Pole (750rpm)	WE4-100L-8	IE4	B3, B5, B14, B34, B35
1.1	8 Pole (750rpm)	WE4-100L2-8	IE4	B3, B5, B14, B34, B35
1.5	8 Pole (750rpm)	WE4-112M-8	IE4	B3, B5, B14, B34, B35
2.2	8 Pole (750rpm)	WE4-132S-8	IE4	B3, B5, B14, B34, B35
3	8 Pole (750rpm)	WE4-132M-8	IE4	B3, B5, B14, B34, B35
4	8 Pole (750rpm)	WE4-160M1-8	IE4	B3, B5, B35
5.5	8 Pole (750rpm)	WE4-160M2-8	IE4	B3, B5, B35
7.5	8 Pole (750rpm)	WE4-160L-8	IE4	B3, B5, B35
11	8 Pole (750rpm)	WE4-180L-8	IE4	B3, B5, B35
15	8 Pole (750rpm)	WE4-200L-8	IE4	B3, B5, B35
18.5	8 Pole (750rpm)	WE4-225S-8	IE4	B3, B5, B35
22	8 Pole (750rpm)	WE4-255M-8	IE4	B3, B5, B35
30	8 Pole (750rpm)	WE4-250M-8	IE4	B3, B5, B35
37	8 Pole (750rpm)	WE4-280S-8	IE4	B3, B5, B35
45	8 Pole (750rpm)	WE4-280M-8	IE4	B3, B5, B35
55	8 Pole (750rpm)	WE4-315S-8	IE4	B3, B5, B35
75	8 Pole (750rpm)	WE4-315M-8	IE4	B3, B5, B35
90	8 Pole (750rpm)	WE4-315L1-8	IE4	B3, B5, B35
110	8 Pole (750rpm)	WE4-315L2-8	IE4	B3, B5, B35
132	8 Pole (750rpm)	WE4-355M1-8	IE4	B3, B5, B35
160	8 Pole (750rpm)	WE4-355M2-8	IE4	B3, B5, B35
200	8 Pole (750rpm)	WE4-355L-8	IE4	B3, B5, B35

Download the Catalogue

Brook Crompton WE3 & WE4 Catalogue.pdf

Frequently Asked Questions

The WE3 and WE4 are cost-effective Brook Crompton motors available in IE3 and IE4 efficiency classes. Both offer reliable performance, with the WE4 providing higher energy efficiency where reduced running costs are a priority.

Yes. The Brook Crompton WE3 & WE4 range is commonly used to replace older Brook Crompton S10 and S30 motors, along with equivalent motors from many other manufacturers. Simply provide the motor serial number or a photo of the nameplate, and we can identify the original specification to supply a like-for-like replacement.

Yes. The WE3 & WE4 are suitable for inverter operation and can be paired with a variable speed drive (VSD) in applications such as pumps, fans and HVAC systems.

Yes. BAWCo holds a wide range of WE3 & WE4 motors in stock, while our in-house specialists can carry out mounting changes, add heaters and thermistors, and modify motors for AC & DC brake kits. This reduces lead times and allows us to offer same-day delivery for urgent requirements.

Why Choose BAWCo?

Authorised Distributor

With over 50 years as an authorised Brook Crompton distributor and more than 110 years of motor expertise, BAWCo provides direct manufacturer support, technical advice and access to custom-built motors for specialist applications.

Stock & Fast Delivery

With over £6.5 million in stock, we hold a wide range of motors ready for urgent requirements. Free local delivery is provided by our own vehicles and drivers, with reliable nationwide delivery available through established courier partners.

Motor Replacements

Provide the serial number from your motor’s nameplate, and we can identify the specification and supply a like-for-like Brook Crompton cast iron replacement. Energy-saving analysis, drawings, data sheets and STEP files are available on request to help compare replacement options.

Motor Repairs

From servicing and repairs to complete motor replacements, BAWCo helps you choose the most economical solution for your application. As an authorised AEMT and Brook Crompton repairer, our team of 22 engineers provides specialist motor repair services from our custom-built Bradford facility.

Request a Quote

Looking for a new, replacement or modified Brook Crompton WE3 & WE4 motor?

Getting the right motor is simple. Send us the motor serial number or a photo of the nameplate and mounting position, and our specialists will identify the correct replacement and provide a quotation.

Contact Us

Product Comparison

	W Series Aluminium	W Series Cast Iron	WE3 & WE4
Product Range	Premium	Premium	Low Cost
Best for	Lightweight Applications	Harsh Environments	Cost-effective Replacements
Frame Material	Aluminium	Cast Iron	Aluminium & Cast Iron
Efficiency	IE2 & IE3	IE3 & IE4	IE3 & IE4
Power range	0.12 - 22 kW	0.75 - 375 kW	0.12 - 375 kW
Industrial Use	Low Power Critical Applications	Heavy Duty Critical Applications	General Industrial
Warranty	3 Years	3 Years	2 Years
Manufactured	Europe	Europe	China

Still not sure which motor is right for your application? Contact us for expert advice.

Brook Crompton
WE3 & WE4 Motors

IE3 & IE4 Efficiency

0.12-375kW

63-355

IE3 & IE4

AL & CI

2 Year

Why THE WE RANGE?

WE3 & WE4 BENEFITS

Multi-Mount

Inverter Duty

Lower Running Costs

Stock Modifications

Applications & Industries

Water & Wastewater

Manufacturing

HVAC & Building Services

Agriculture

Industrial Processing

OPTIONS & MODIFICATIONS

BROOK WE3 & WE4 FEATURES

Standard Features

Stock Modifications

Custom Builds

Brook Crompton WE3 & WE4 Motors

Technical specifications

Download the Catalogue

Frequently Asked Questions

Why Choose BAWCo?

Authorised Distributor

Stock & Fast Delivery

Motor Replacements

Motor Repairs

Request a Quote

Contact Us

Product Comparison

Legal

Careers

Opening Times

Our Location

Brook CromptonWE3 & WE4 Motors

IE3 & IE4 Efficiency

0.12-375kW

63-355

IE3 & IE4

AL & CI

2 Year

Why THE WE RANGE?

WE3 & WE4 BENEFITS

Multi-Mount

Inverter Duty

Lower Running Costs

Stock Modifications

Applications & Industries

Water & Wastewater

Manufacturing

HVAC & Building Services

Agriculture

Industrial Processing

OPTIONS & MODIFICATIONS

BROOK WE3 & WE4 FEATURES

Standard Features

Stock Modifications

Custom Builds

Brook Crompton WE3 & WE4 Motors

Technical specifications

Download the Catalogue

Frequently Asked Questions

What is the difference between the Brook Crompton WE3 and WE4?

Can the WE3 & WE4 be used as an IE3 motor replacement?

Can the WE3 & WE4 motors be used with a variable speed drive (VSD)?

Can BAWCo modify stock WE3 & WE4 motors?

Why Choose BAWCo?

Authorised Distributor

Stock & Fast Delivery

Motor Replacements

Motor Repairs

Request a Quote

Contact Us

Product Comparison

Legal

Careers

Opening Times

Our Location

Brook Crompton
WE3 & WE4 Motors