Description
The 1092090001 is the Atlas Copco motor assembly of the GA 30+ oil-injected screw compressor, listed in the item data as GA30+ MOTOR ASS’Y, 400V, 50HZ. It is a three-phase induction machine rated 30 kW at 400 V and 50 Hz, and it drives the screw element of a fixed-speed GA 30+ machine. This article sets out the identity of the 1092090001, the compressor family behind the part number, the type code on the motor plate, the electrical ratings and the handling figures a workshop needs before the order is placed.
Identity of the 1092090001 Motor Assembly
The 1092090001 is ordered as a complete assembly rather than as a bare frame, and the item record fixes what arrives. The record for the 1092090001 carries the official description, the country of origin and the shipping figures in one place, which is what a maintenance file needs to keep together.
The Official Description and the Item Record
The item data lists the 1092090001 as GA30+ MOTOR ASS’Y, 400V, 50HZ. The description names the machine family and the supply first, and the assembly suffix marks the unit as the motor in the form it is fitted to the compressor, with its shaft end and mounting face prepared for the drive line of the host machine.
The same record carries the origin and the tariff code, listed as China and 84149000. The tariff code sits in the compressor-parts chapter rather than in the electric-motor chapter, because this unit is ordered and classified as a compressor component of the GA 30+ build.
The 1092090001 is a 30 kW machine, which places it at the top of the daily-use band of the GA range and at the entry point of the larger GA 30+ to 75+ group. Compressors at this rating often carry the air demand of a whole production section, so the drive is treated as a critical spare in most maintenance plans.
What the Assembly Covers
The 1092090001 arrives as the motor itself, with its frame, windings, terminal box and the shaft end that the compressor drive takes. Oil separation, cooling, the inlet valve and the controller stay on the host machine, because they belong to the compressor rather than to the drive.
Reading the 1092090001 against the plate of the machine is the fastest way to fix the identity of the part before an order is written. The plate carries the type code and the ratings, and the item record carries the number the order travels under.
The GA 30+ Compressors Behind the Part Number
The description on the item record names the machine family directly, and that family gives the 1092090001 its working context. The GA 30+ belongs to the GA 30+ to 75+ group of fixed-speed oil-injected screw compressors.
Where the GA 30+ Sits in the Range
The GA 30+ is the entry model of the GA 30+ to 75+ group, a range of fixed-speed oil-injected screw compressors built for general plant air. The group covers 30 kW to 75 kW at 50 Hz and runs at working pressures from 7.5 bar up to 13 bar, and the GA 30+ delivers its flow at a sound pressure level of 66 dB(A).
Every model of the group is built to operate in ambient conditions up to 46 °C, and the 1092090001 carries the same 46 °C figure on its own plate. That match is not a coincidence: the drive is rated for the environment of the package it sits in.
Fixed-Speed Duty and the Drive
A fixed-speed GA 30+ runs its element at one working speed and controls output by loading and unloading. The motor therefore spends its life at or close to its rated speed of 2955 r/min, and its duty is continuous rather than intermittent.
Continuous duty at a steady speed is the pattern the 1092090001 is built for. Bearing condition, cooling air path and winding temperature are the three things that follow from that duty, and all three are covered by the service schedule of the host machine.
Reading the YXLA200L1-2 Type Code
The motor plate carries the type code YXLA200L1-2, and the code is worth reading because it states the frame and the pole count in a single line. Those two facts set the mounting and the speed of the 1092090001.
The Frame and the Core Length
In the type code, the 200 gives the frame size and the L1 gives the core length within that frame. A 200 frame with the shorter core of the L1 version produces 30 kW at two poles, while the longer core of the same frame steps up to the next rating in the family.
Two machines of the same frame size can therefore carry different ratings without any change to the mounting face, because the difference sits in the magnetic length of the core. When the 1092090001 is ordered, the plate code settles the rating question rather than the frame number on its own.
The Pole Count and the Working Speed
The final digit of the type code gives the pole count, and the 2 in YXLA200L1-2 marks a two-pole machine. At 50 Hz a two-pole motor runs close to 3000 r/min, and the plate of the 1092090001 lists 2955 r/min at full load.
The gap between the synchronous 3000 r/min and the rated 2955 r/min is the slip of the machine, and at this rating the gap stays small. The screw element of the GA 30+ is driven at the speed the package was designed around, with the coupling and the element bearings taking that speed directly.
The Drive Role in the Oil-Injected Screw Machine
In a GA 30+ the motor and the screw element form the drive line of the machine, and the working principle of the element explains what the 1092090001 has to deliver.
An oil-injected screw element compresses air between two intermeshing helical rotors inside a precision-bored housing. Injected oil seals the running clearances, carries the compression heat away and lubricates the bearings, so the rotors stay separated by an oil film rather than by metal-to-metal contact.
Turning that element against compression pressure is the job of the motor. The load rises and falls with the discharge pressure of the machine, and the drive absorbs the moment of each load step as the inlet valve opens and closes. The 1092090001 is sized for the compression work of a 30 kW package plus the mechanical losses of the drive line.
Because the element is a long-life component and the motor is the part that turns electrical power into that life, the two are matched from the factory. A drive that is under-rated for the duty shortens the working life of the element bearings, which is why the plate code of the 1092090001 belongs in the machine file.
Ratings and the IE2 Efficiency Class
The electrical data of the 1092090001 is stated on the motor plate, which is the reference for the machine. The figures below are the ones the plate carries.
Voltage, Current and Speed at 50 Hz
The 1092090001 is rated 400 V and 50 Hz, with a full-load current of 54.7 A and a rated output of 30 kW at 2955 r/min. The connection is listed as delta, the standard connection for this supply and rating, and the drive takes its power from the three-phase supply of the site.
Those five figures — 30 kW, 400 V, 50 Hz, 54.7 A and 2955 r/min — are the ones a workshop checks against the plate before fitting the 1092090001. A drive built for a different voltage variant of the same frame will not match the supply of the machine.
Efficiency and the Service Factor
The plate states the efficiency as IE2 at 92.0%. IE2 is the efficiency class of the machine as built, and the figure holds while the motor is kept in good order, with clean windings, a clear cooling path and healthy bearings.
The service factor is listed as 1.22. A service factor above unity means the machine carries a margin beyond its rated output, and 1.22 is a generous margin for a compressor drive. It is the reason the 1092090001 absorbs the short load steps of the machine without the winding temperature running beyond its class.
Ambient Conditions, Insulation and Protection
The plate of the 1092090001 states three environment figures, and together they describe where the machine can be installed.
The ambient rating is +46 °C, which matches the rating of the GA 30+ package. A compressor room that is hot at the end of a summer shift stays inside that figure, so the drive does not have to be derated for the site.
The insulation class is F and the protection class is IP 55. Class F insulation is rated well above the winding temperatures of normal duty, and that margin is what keeps the service factor meaningful. IP 55 seals the frame against dust and against water projected from any direction, a level that suits a compressor room with high dust or washdown.
Handling, Installation and Alignment
At 270 kg and 80 × 50 × 40 cm as packed, the 1092090001 is a lifting job rather than a bench job, and the handling plan matters as much as the electrical data.
Moving the Motor Into Place
The 1092090001 is moved with lifting gear rated for the weight, using the lifting points of the frame rather than the shaft or the terminal box. The route from the door of the compressor room to the machine is worth walking before the delivery day, because the crate is 80 cm long and the clearance at the machine is set by the package.
Once the 1092090001 is at the machine, the mounting face and the coupling decide how the drive line runs. Clean, true faces and a coupling aligned to the element shaft keep vibration low, while a drive bolted down out of line loads the bearings of both the motor and the element.
First Run After Fitting
The first run after a drive change is a short observation run. Winding temperature, bearing sound and vibration are the three readings that show whether the assembly went in clean, and the machine file records them against the service date.
Keeping the alignment true and the cooling path clear is what holds the 1092090001 on its rated efficiency over the life of the machine. Both are simple checks, and both belong to the normal service visit.
Technical Specifications
The tables below collect the identification and physical data of the 1092090001 in one place, as the item data and the motor plate list them.
Part Identification
| Item number | 1092090001 |
| Official description | GA30+ MOTOR ASS’Y, 400V, 50HZ |
| Motor type | YXLA200L1-2 |
| Function | Three-phase induction motor, compressor drive |
| Country of origin | China |
| Tariff code | 84149000 |
Electrical Data
| Rated output | 30 kW |
| Voltage | 400 V |
| Frequency | 50 Hz |
| Full-load current | 54.7 A |
| Rated speed | 2955 r/min |
| Efficiency class | IE2 — 92.0% |
| Connection | Delta |
| Service factor | 1.22 |
| Insulation class | F |
| Protection class | IP 55 |
| Ambient temperature | +46 °C |
Dimensions and Weight
| Dimensions (L × W × H) | 80 × 50 × 40 cm |
| Weight | 270 kg |
FAQ
Which compressors use the 1092090001?
The item data lists the 1092090001 as the motor assembly of the GA 30+ oil-injected screw compressor. Send Seadweer the model and the serial number of your machine, and the fitment is confirmed against your build.
Is the 1092090001 a 30 kW motor?
Yes. The machine is rated 30 kW at 400 V and 50 Hz, with a full-load current of 54.7 A and a rated speed of 2955 r/min.
What does the type code YXLA200L1-2 mean?
The code states a 200 frame with the L1 core length and a two-pole winding. That combination gives the 30 kW rating and the working speed of the 1092090001.
What are the dimensions and the weight?
The item data lists 80 × 50 × 40 cm and 270 kg. The figures describe the unit as packed, so lifting gear and a clear floor route belong on the plan for the fitting day.
What efficiency class is the 1092090001?
The plate states IE2 at 92.0%. The figure holds while the machine is kept in good order, with clean windings and healthy bearings.
How do I order the right drive for my machine?
Send Seadweer the item number together with the compressor model and the serial number, and the fitment of the 1092090001 is checked against your build before the order is confirmed.
More Motors Available
Additional Atlas Copco Motors are available on request. See the table below, or contact us and we will look into your requirement.
| Part Number | Part Name | Part-Number |
|---|---|---|
| 1080402028 | MOTOR 90KW 380V 60HZ | 1080-4020-28 |
| 1080402030 | MOTOR 90KW 5 | 1080-4020-30 |
| 1080402331 | MOTOR | 1080-4023-31 |
| 1080402352 | MOTOR | 1080-4023-52 |
| 1080402505 | MOTOR | 1080-4025-05 |
| 1080402709 | MOTOR | 1080-4027-09 |
| 1080403363 | MOTOR | 1080-4033-63 |
| 1080403413 | MOTOR | 1080-4034-13 |
| 1080403903 | MOTOR | 1080-4039-03 |
| 1080403911 | MOTOR 30KW GA30VSD 4 | 1080-4039-11 |
| 1080403921 | MOTOR 22KW 400 50 | 1080-4039-21 |
| 1080403931 | MOTOR 30KW GA30VSD 4 | 1080-4039-31 |
| 1080403941 | MOTOR 30KW GA30VSD 4 | 1080-4039-41 |
| 1080403943 | MOTOR 30KW GA30VSD 2 | 1080-4039-43 |
| 1080403944 | MOTOR 22KW G | 1080-4039-44 |
| 1080404609 | MOTOR | 1080-4046-09 |
| 1080404619 | MOTOR | 1080-4046-19 |
| 1080404682 | MOTOR | 1080-4046-82 |
| 1080404689 | MOTOR | 1080-4046-89 |
| 1080404909 | MOTOR | 1080-4049-09 |
| 1080405081 | MOTOR | 1080-4050-81 |
| 1080405209 | MOTOR | 1080-4052-09 |
| 1080405311 | MOTOR-FAN | 1080-4053-11 |
| 1080405328 | FAN MOTOR 1,8KW | 1080-4053-28 |
| 1080405350 | FAN MOTOR 1.5KW | 1080-4053-50 |
| 1080405361 | FAN MOTOR 1,1KW | 1080-4053-61 |
| 1080405511 | MOTOR-FAN | 1080-4055-11 |
| 1080405521 | MOTOR | 1080-4055-21 |
| 1080406119 | DRIVE MOTOR 22KW-2P | 1080-4061-19 |
| 1080406129 | MOTOR 22KW 460V/3/60 | 1080-4061-29 |
| 1080406202 | DRIVE MOTOR 30KW-2P | 1080-4062-02 |
| 1080407101 | MOTOR 15KW 200-220 5 | 1080-4071-01 |
| 1080407113 | MOTOR 15KW 380 60 | 1080-4071-13 |
| 1080407114 | MOTOR 15KW 575 60 | 1080-4071-14 |
| 1080407162 | MOTOR | 1080-4071-62 |
| 1080407213 | MOTOR 18KW 3 | 1080-4072-13 |
| 1080407317 | MOTOR 22KW 400 60 MR | 1080-4073-17 |
| 1080407322 | MOTOR 22KW +THERM 46 | 1080-4073-22 |
| 1080407362 | MOTOR | 1080-4073-62 |
| 1080407404 | MOTOR 30KW 400 50 | 1080-4074-04 |
| 1080407412 | MOTOR | 1080-4074-12 |
| 1080407552 | MOTOR | 1080-4075-52 |
| 1080407572 | MOTOR | 1080-4075-72 |
| 1080407701 | MOTOR | 1080-4077-01 |
| 1080407744 | MOTOR | 1080-4077-44 |
| 1080407754 | MOTOR | 1080-4077-54 |
| 1080407821 | MOTOR | 1080-4078-21 |
| 1080407831 | MOTOR | 1080-4078-31 |
| 1080407834 | MOTOR | 1080-4078-34 |
| 1080407841 | MOTOR | 1080-4078-41 |
Peter Nowak –
Our GA 30+ had been running with a noisy bearing for two weeks and we wanted the drive on site before the next shutdown. We sent Seadweer the model, the serial number and the type code from the plate, and they came back with the 1092090001 already checked against our build. The unit arrived as a complete assembly and our electricians had it coupled and aligned in a single shift. The machine has run on load since then with the vibration back to its normal reading.