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Three-phase motors

Three-phase motor ratings

3.7 kW 2 pole three-phase motors

17 motors are registered for supply in Australia at 3.7 kW 2 pole, from 8 different brands. A 2 pole motor runs at a synchronous speed of 3,000 rpm on a 50 Hz supply. Registration means the motor may be supplied here. It is not a statement that it fits your application.

8 frame sizes · 15 recorded voltages · 31 mounting arrangements

Find a 3.7 kW 2 pole motor →

Frame sizes at this rating

IEC: 100L, 112M, 115, 132S

The number is the shaft centre height in millimetres and the letter is the frame length. It fixes how high the shaft sits and where the foot holes are, so a 132M from one manufacturer mounts like a 132M from another.

NEMA: 182T, 184TC, 213TC

A different, dimensionally unrelated frame system — the NEMA number is the shaft centre height in quarter inches, not millimetres. A NEMA frame is never a substitute for an IEC one.

Standard unclear: 182

Recorded in a form that does not place them confidently against either system — a NEMA-style suffix without the word NEMA, or a dual-frame designation such as 213/5T. Check the standard against the manufacturer's drawing before treating any of these as a centre height in millimetres.

Synchronous speed

3,000 rpm — 3000 rpm at 50 Hz, from 2 poles.

Full-load speed is lower than this by the motor's slip, and slip is not recorded in the register. Read it from the nameplate of the motor you are replacing.

Efficiency spread

Full-load efficiency across these registrations runs from 85.50% to 91.02%.

Over a motor's working life, running cost usually dwarfs purchase price, so this spread is worth more attention than it normally gets.

Every 3.7 kW 2 pole motor registered for supply in Australia, by brand. Enclosure and mounting are often recorded for a registration family rather than one model — see the note below the table.
Brand Model Frame Enclosure Full-load efficiency Made in
ATLAS COPCO 1092905836 100L IP55 88.65% China
ATLAS COPCO 1092907163 100L IP55 88.65% China
ATLAS COPCO YE100L1-2E3 100L IP55 88.65% China
BALDOR 36D026T826G1 182T IP22 90.10% United States of America
BALDOR 36N692T013G1 184TC IP44 89.10% United States of America
BALDOR 37J639Y217G3 213TC IP56 89.60% United States of America
ELGI X100203 112M IP65 87.80% India
HD Hyundai Electric HL-XE 112M 112M IP55 85.50% Vietnam
Hydro Connect HC-EGBP5037 115 IP56 87.92% China
Rotomotive 100L-2 100L IP54 86.46% India
Siemens Ltd 1lE7503-1AA53-4AA4-Z N01+R12+Y53+Y82 100L IP55 87.80% India
Siemens Ltd 1LE7503-1AA53-5AC4-Z 100L IP55 87.80% India
Siemens Ltd 7CV3105A 100L IP55 87.80% India
WEG 3.7kW 2P 100 W22 IE3 (Incl. W22M, Ex-db, Ex-db eb, Ex-eb, Ex-ec, Ex-tb, Ex-tc) 100L IP55, IP56, IP65, IP66 88.22% Brazil, China
WEG 3.7kW 2P 132 W22 IE3 132S IP55 91.02% Brazil, China
WEG 3.7kW 2P 182 415V 50Hz NEMA W21 IE2 (Incl. W21M, Ex-db, Ex-db eb, Ex-eb, Ex-ec, Ex-tb, Ex-tc) 182 IP55, IP56, IP65, IP66 91.01% Brazil
WEG 3.7kW 2P 182/4 W22 IE3 182 IP55 89.31% Brazil, China

What this page establishes, and what it does not

  • Established: every motor listed is registered for supply in Australia at 3.7 kW 2 pole, and the frame, enclosure and efficiency shown are what its registration states.
  • Established: a 2 pole motor has a synchronous speed of 3,000 rpm at 50 Hz. That is arithmetic, not a measurement.
  • Read carefully: a registration often covers a family of motors rather than one part number. 6 of these registrations list several voltages and 4 list several mounting arrangements — meaning a compliant variant exists in that family, not that the model shown is that variant.
  • Not established: that any motor here bolts into your application. Shaft diameter, shaft length and keyway are not in the register, and neither is terminal box position.
  • Not established: that a motor is currently available, or at what price. The register records permission to supply, not stock.
  • Not in this dataset: full-load speed, starting current, duty rating, and suitability for inverter operation.

Replacing a motor?

What each figure on the nameplate means, which of them decide whether a replacement fits, and which you have to confirm off the drawing.

Read the guide →

Match against your specification

Add voltage, frame, mounting and enclosure to narrow these 17 registrations to the ones that meet your requirement.

Open the finder →

Known limitations

What the register omits, where family registrations blur model detail, and the checks you always have to make yourself.

Understand the gaps →