Description
The 1091634104 is the 15 kW drive motor for oil-injected screw compressors on a 400 V, 50 Hz supply. It is a three-phase induction motor built to the AT160M-201 type, and it hands the compressor element the turning speed the element is designed to run at.
The motor is ordered and fitted by record. The number on the order has to agree with the type, the frame and the supply on the machine, and the 1091634104 is the record that a 15 kW oil-injected drive line carries.
The 1091634104 Motor and Where It Fits
The 1091634104 sits in the drive line of an oil-injected screw compressor. It is the part that takes the electrical supply and turns it into shaft torque, and every point downstream of it depends on that torque arriving at the designed speed.
The Item Record
The item record carries the motor under the number 1091634104, with MOTOR 15KW 400V 50HZ FOR OIL INJECTED SCREW COMPRESSORS as its description. The number is the line the order travels under, so the same unit is picked whether the order is placed by code or by description.
Two motors can share an output figure and still differ in frame, supply and winding arrangement. That is why the 1091634104 is quoted with its type and its plate data rather than by the 15 kW figure alone.
What the Official Description States
The official description places the 1091634104 in the oil-injected screw compressor range and fixes the supply at 400 V, 50 Hz. The rating, the frame and the shaft end are set for this duty rather than for general industrial work.
Oil-injected screw machines in this power class are compact packages that stay on load for long periods. The drive is sized for that pattern of work, and the 1091634104 is the number a 15 kW drive line carries in the machine record.
The 160M Frame and the Space It Needs
The mechanical side of the 1091634104 is described by its type, its frame and its envelope. Those three decide how the motor is fixed to the machine, how much room the change needs and how the heat of the winding leaves the housing.
The Frame Code
The type AT160M-201 opens with the frame designation 160M. In the IEC frame system the figure 160 is the height of the shaft centreline above the mounting feet in millimetres, and the letters that follow describe the length and the fixing pattern of the housing.
The frame of the 1091634104 does more than set a footprint. It holds the stator and the rotor in line across the air gap, it carries the bearings that locate the shaft, and its surface is the path the heat leaves by.
The Envelope and the Weights
The 1091634104 measures 860 mm long, 560 mm wide and 820 mm high as supplied, and it weighs 150 kg as packed against 125 kg net on the plate. Those figures are read before the machine is opened, because they set the lift and the clearance the job needs.
A unit of this mass is lifted on slings around the frame, never by the shaft end. The space above the drive line has to take both the lift and the alignment work that follows it.
Reading the Nameplate Before You Order
The plate is the document a workshop reads twice: once when the motor is ordered and again when the supply is connected. The plate of the 1091634104 carries the type, the output, the supply, the current, the speed and the class data of the winding system.
Output, Supply and Current
The 1091634104 is rated 15 kW at 400 V, 50 Hz, with a rated current of 26 A. Those three figures travel together: the output is the mechanical power at the shaft, the voltage and frequency describe the supply the winding is built for, and the current is what the circuit has to carry.
The 26 A rating is the figure the protective device and the cable are matched to. A drive with a different output in the same range carries a different current, so the plate rather than the machine model decides the circuit.
Speed, Pole Count and Slip
The plate gives the rated speed of the 1091634104 as 2940 r/min. On a 50 Hz network a two-pole winding produces a rotating field at 3000 r/min, and the 60 r/min between that figure and the loaded speed is the slip of the induction machine.
Slip is what allows the rotor to develop torque, and it stays small by design. A two-pole drive of this kind holds its speed closely under a load that rises and falls with the air demand of the plant.
The Delta Connection
The winding of the 1091634104 is recorded on the plate as delta. In a delta connection the three phase windings are joined end to end and the supply is applied across each pair of terminals.
The link bars in the terminal box are set to match the plate before the supply is switched on, and the setting is checked again if the machine is ever moved to another network. The connection belongs to the installation, not to the choice of the operator.
Heat, Insulation and the Compressor Enclosure
An enclosed drive works in air that the package has already warmed and in dust that the plant produces. Two figures on the plate of the 1091634104 describe how the motor is built for that environment.
Class F Winding Insulation
The insulation class of the 1091634104 is F. The letter names the thermal class of the winding system, and on the IEC scale a class F winding is built for a temperature limit of 155 °C.
What that class gives a compressor drive is margin. Air inside a working package is warmer than the room outside it, and the winding of the 1091634104 is built to carry its rated load in that air without the insulation working at its limit.
IP54 and the Cooling Path
The protection class of the 1091634104 is IP54. The first digit covers solid matter and the second covers water, so the enclosure is dust-protected and protected against splashing water from any direction.
An enclosure of that class also changes how the motor cools. Heat leaves the winding through the frame surface rather than through a stream of room air, so a frame left under a layer of dust runs hotter than one that is kept clean. Wiping the frame of the 1091634104 and keeping the area around it clear is part of routine work on the machine.
Handling, Storage and Fitting
The 1091634104 is a 125 kg machine with a machined shaft end, and the way it is kept and handled decides how it fits when the change is made.
Before It Is Fitted
A motor that waits before it goes into service is kept dry, off the floor and away from vibration. The shaft end stays protected, and the rotor is turned by hand from time to time so that the bearings do not sit in one position for months.
The plate is checked against the order before the unit leaves the store. The type, the output, the supply and the frame are read from the plate of the 1091634104 and compared with the record of the machine it is going into.
Fitting It to the Machine
The machine is stopped, isolated and locked off, and the supply is proved dead before the terminal box is opened. The motor is lifted on slings around the frame and brought to the mounting face with the shaft end clean and free of burrs.
The mounting bolts are drawn down evenly so that the 1091634104 sits square rather than pulled to one side. The drive joint is examined while the line is open, because a worn joint puts a load on the bearings of a new motor from the first hour of running.
First Run Checks
The 1091634104 is turned over without load to confirm that it spins free and in the right direction, and the terminal box is checked again for tight, clean terminations. The machine is then loaded and the running readings are taken.
The readings to record are current, temperature and vibration. Current follows the load on the element, temperature follows the heat leaving the frame, and vibration follows the mounting and the drive joint. A steady set of readings is the sign that the 1091634104 is sitting on its ratings.
Ordering the 1091634104 Through Seadweer
A drive motor is ordered by plate data, because an output figure on its own does not describe the supply, the frame or the shaft end. The ordering routine of the 1091634104 is built around that fact.
The Machine Record Check
Send Seadweer the model and the serial number of the machine, and the team checks the machine record against the 1091634104 before the quotation is prepared. If the unit carries a related motor number or a different frame, the same check brings up the right one.
What the Quotation Repeats
The quotation repeats the item data of the 1091634104: the description, the motor type, the electrical ratings and the physical figures. One confirmation covers the whole unit, so the change can be planned without a second enquiry.
Technical Specifications
The tables below collect the identification, electrical and physical data of the 1091634104 as the item record and the nameplate state them.
Part Identification
| Item number | 1091634104 |
| Description | Motor 15 kW 400 V 50 Hz for oil-injected screw compressors |
| Motor type | AT160M-201 |
| Rated output | 15 kW |
| Frame | 160M |
| Country of origin | China |
| Tariff code | 85015200 |
Electrical Data
| Rated voltage | 400 V, three-phase |
| Rated frequency | 50 Hz |
| Rated current | 26 A |
| Rated speed | 2940 r/min |
| Winding connection | Delta |
| Insulation class | Class F |
| Protection class | IP54 |
Physical Data
| Dimensions (L x W x H) | 86 x 56 x 82 cm |
| Weight as supplied | 150 kg |
| Net weight | 125 kg |
FAQ
What is the 1091634104?
The 1091634104 is a 15 kW drive motor for Atlas Copco oil-injected screw compressors on a 400 V, 50 Hz supply. It is a three-phase induction motor of the AT160M-201 type, built on the 160M frame.
Which machines use the 1091634104?
The motor serves the 15 kW drive line of oil-injected screw compressors, as the official item description states. The machine record confirms the fitment, because the drive is matched by type, frame and supply rather than by output alone.
What are the electrical ratings of the 1091634104?
The motor is rated 15 kW at 400 V and 50 Hz, with a rated current of 26 A and a rated speed of 2940 r/min. The winding is connected in delta and the insulation class is F.
Why does the 1091634104 run at 2940 r/min?
A two-pole winding on a 50 Hz network produces a rotating field at 3000 r/min, and the rotor follows it at 2940 r/min under load. The 60 r/min between the two figures is the slip that lets the motor develop torque.
What does IP54 mean on the 1091634104?
IP54 describes an enclosure that is dust-protected and protected against splashing water from any direction. That class suits a compressor package, where the drive works in warm air and in the dust of a working plant.
How do I order the 1091634104?
Send Seadweer the model and the serial number of your machine, and the team checks the machine record against the 1091634104 before the quotation is prepared.
More Motors Available
Other Atlas Copco Motors are available upon request. Please check the table below or contact us for details.
| Part Number | Part Name | Part-Number |
|---|---|---|
| 1080284777 | MOTOR | 1080-2847-77 |
| 1080284799 | MOTOR | 1080-2847-99 |
| 1080284881 | MOTOR Z 400 460V SI | 1080-2848-81 |
| 1080284882 | MOTOR | 1080-2848-82 |
| 1080284884 | MOTOR | 1080-2848-84 |
| 1080284982 | MOTOR | 1080-2849-82 |
| 1080285006 | MOTOR | 1080-2850-06 |
| 1080285008 | MOTOR | 1080-2850-08 |
| 1080285009 | MOTOR | 1080-2850-09 |
| 1080285024 | MOTOR | 1080-2850-24 |
| 1080285029 | MOTOR | 1080-2850-29 |
| 1080285063 | MOTOR | 1080-2850-63 |
| 1080285068 | MOTOR | 1080-2850-68 |
| 1080285072 | MOTOR | 1080-2850-72 |
| 1080285078 | MOTOR | 1080-2850-78 |
| 1080285233 | ELECTR. MOTOR | 1080-2852-33 |
| 1080285519 | MOTOR | 1080-2855-19 |
| 1080285542 | MOTOR | 1080-2855-42 |
| 1080285543 | MOTOR | 1080-2855-43 |
| 1080285762 | MOTOR | 1080-2857-62 |
| 1080285959 | MOTOR | 1080-2859-59 |
| 1080285982 | MOTOR | 1080-2859-82 |
| 1080285989 | MOTOR | 1080-2859-89 |
| 1080288480 | MOTOR 1,5KW 230/400/ | 1080-2884-80 |
| 1080288482 | MOTOR 1,8KW 230/460V | 1080-2884-82 |
| 1080288516 | MOTOR 500 VOLT | 1080-2885-16 |
| 1080288582 | MOTOR 6,6KW 230/460V | 1080-2885-82 |
| 1080288590 | MOTOR 5,5KW 230V 50H | 1080-2885-90 |
| 1080288591 | MOTOR 5,5KW | 1080-2885-91 |
| 1080288592 | MOTOR 6,6KW 230V 60H | 1080-2885-92 |
| 1080288593 | MOTOR 6,6KW 380V 60H | 1080-2885-93 |
| 1080288594 | MOTOR 5,5KW 400/460V | 1080-2885-94 |
| 1080288707 | MOTOR 9,0KW | 1080-2887-07 |
| 1080288711 | EL.MOTOR 11KW | 1080-2887-11 |
| 1080288782 | MOTOR 9,0KW 230/460V | 1080-2887-82 |
| 1080288790 | MOTOR 7,5KW 230V 50H | 1080-2887-90 |
| 1080288791 | MOTOR 7,5KW 500/575V | 1080-2887-91 |
| 1080288792 | MOTOR 9,0KW 230V 60H | 1080-2887-92 |
| 1080288794 | MOTOR 7,5KW 400/460V | 1080-2887-94 |
| 1080289009 | MOTOR | 1080-2890-09 |
| 1080289605 | MOTOR-FAN | 1080-2896-05 |
| 1080289705 | MOTOR-FAN | 1080-2897-05 |
| 1080290207 | MOTOR | 1080-2902-07 |
| 1080290235 | MOTOR | 1080-2902-35 |
| 1080290401 | MOTOR 11KW | 1080-2904-01 |
| 1080290412 | MOTOR | 1080-2904-12 |
| 1080290432 | MOTOR | 1080-2904-32 |
| 1080290438 | MOTOR 22KW | 1080-2904-38 |
| 1080291902 | MOTOR-FAN | 1080-2919-02 |
| 1080292726 | MOTOR | 1080-2927-26 |
Marek Novak –
Our 15 kW machine carries the main air supply for the shop, and its drive motor came up for renewal on the hour meter. We sent the model and the serial number, and the team checked the 1091634104 against the machine record before anything was ordered. The type, the 160M frame and the 400 V ratings on the plate were the same as the unit we took out, so the change was finished in one shift and the running readings have held since.