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AC Motor DRE/DRS/DRP/DRL Series
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Amortization calculation for energy efficient motors

Modular DR motor system
The new modular system of asynchronous AC motors from SEW-EURODRIVE is a development based on the established motor series. The new DR series AC motors combines the entire range of required motor efficiency levels as well as energy efficient motors making it a future-proof innovation of the highest quality.

In the development of energy efficient motors, SEW-EURODRIVE became the first company in the world to succeed in using die-cast copper technology in industrial high-volume series production in 2002. The modular DR motor system from SEW-EURODRIVE offers three different brake sizes per motor size as well as cost-optimized encoders integrated in the motor.

All other additional features of the new DR series are available in all energy efficiency levels.

The DR motor supports all energy efficiency standards worldwide and already meets the upcoming IEC standard. They bring a whole range of unique benefits to planners and users. One single series for millions of drive combinations

Minimizing losses
In an AC motor, the conversion of electrical energy into mechanical energy is never loss-free. The goal of many international regulations, directives and standards is to reduce the amount that is lost.

The two parts of the motor standard IEC 60034, part 2-1 and part 30, will provide an internationally uniform and accepted procedure for determining and classifying the level of efficiency of asynchronous AC motors.

The increasing diversity that has existed until now (previous part 2 of IEC60034, IEC 61972 or IEEE 112) will become a thing of the past, and manufacturers and users will have certainty.

The DR motor types DRS, DRE and DRP exceed the required levels of efficiency and are assigned to classes IE1, IE2 and IE3.
AC motors of energy efficiency classes IE
DRS series
The DRS motor in the modular DR motor system is a motor that meets the standard efficiency level. The motors are marked with IE1 according to IEC 60034 T30.
Sizes
71 to 225, 315
Lengths
K, S, M, MC, L, LC
4-pole power ratings
0.75 to 45, 110 to 200 kW
Frequencies
50, 60 and 50/60
Efficiency logo
Europe
EFF2
Australia/New Zealand (up to 0.75 kW)
EFF2

DRE series
The DRE motor in the modular DR motor system is a motor that meets High Efficiency requirements. The motors are marked with IE2 according to IEC 60034 T30.
Sizes
80 to 225, 315
Lengths
K, S, M, MC, L, LC
4-pole power ratings
0.75 to 45, 110 to 200 kW
Frequencies
50, 60 and 50/60
Efficiency logo
Europe
EFF1
Australia / New Zealand
EFF1
North America1
CSAe, ee

DRP series
The DRP motor in the modular DR motor system is a motor that meets Premium Efficiency requirements. The motors are marked with IE3 according to IEC 60034 T30.
Sizes
90 to 225, 315
Lengths
K, S, M, MC, L, LC
4-pole power ratings
0.75 to 37, 90 to 160 kW
Frequencies
50, 60 and 50/60
Efficiency logo
Europe
EFF1
Australia / New Zealand
EFF1
North America1
CSAe, ee

Modular brake system – The brake of your choice
The BE brake is based on the extremely successful BM(G) brake, but was further developed in many aspects. The size of the brake has always been inevitably connected to the size of the motor. "Less" brake is only possible by reducing the braking torque with a modified brake spring.

The new combination options of DR motors with BE brakes are no longer subject to this inalterability. The DR motor can be combined with two or three different BE brake sizes.

The DR motor can be combined with the ideal BE brake depending on the demand for braking torque or braking work.

Moreover, brakes mounted on motors from size 90 offer an additional special feature. The brake itself is mounted on a friction plate, which only has to be attached to the endshield. Without opening the motor, the unit can now be removed and replaced – even with a larger or smaller brake.

Extract from the brake combination options

Motor type
Brake type
Wtot
Braking torque graduation
[106 J]
[Nm]
...
...
...
...
              
DR.90
BE1
120
5
7
10
          
BE2
165
  
7
10
14
20
      
BE5
260
      
14
20
28
40
  
DR.100
BE2
165
    
10
14
20
      
BE5
260
      
14
20
28
40
55
...
...
...
...
              

Built-in encoder
The new built-in encoders in the modular DR motor system are unique. Instead of an external encoder mounted to the fan guard of the non-drive end, the encoder can now be installed between the endshield and the fan. This means that any extra length caused by mounted encoders is avoided.

3 variants are available:

Built-in encoder
EI7C
EI78
EI72
EI71
EI7S
AI7W
AI7N
Signal type
HTL (push-pull)
Sin/Cos
RS-485 or CAN
Periods per revolution
A, B
24
6
2
1
24
4
n
C
0
0
0
0
0
    
DR motor sizes
71 to 132
Connection
Terminal strip in the terminal box or 8-pin M12 connector

Additional features
The additional features of the DR motor and DR brakemotor are diverse and extensive. To provide a better overview, they were combined in groups.

Design
Description
Mechanical attachments
All versions that can be mounted to the DR motor using additional elements:
BE..
Brake with brake size, scaled in steps of 10 Nm
HF, HR
Manual brake release, lockable or automatic disengaging
/RS
Backstop instead of a brake
/MSW
MOVI-SWITCH®, integrated switching and protection function
/MM..
MOVIMOT®, integrated frequency inverter
Temperature sensor, temperature detection
All versions that are offered with additional elements in the winding:
/TF
3 Temperature sensors (PTC thermistor or PTC resistor) in series
/TH
3 thermostats (bimetallic switches) in series
/KY
1 temperature sensor KTY84-130
/PT
1 or 3 temperature sensor(s) PT100
Ventilation
All versions in conjunction with cooling/ventilation on the DR motor:
/V
Forced cooling fan, IP66, AC voltage range or DC
/Z
Additional flywheel mass (flywheel fan)
/AL
Metal fan
/U
Non-ventilated (only without fan)
/OL
Non-ventilated (closed B side)
/LF
Air cleaner
/C
Protection canopy
Bearings
All versions in conjunction with bearings for size DR315:
/NS
Lubrication device
/ERF
Reinforced bearings for high overhung loads (only with NS)
/NIB
Insulated bearing (B-side)
Connection
All versions in conjunction with connection options:
/IS
Integrated plug connector
/AS.., etc.
Installed plug connectors of various types
/KCC
Terminal strip with cage clamps
/KC1
C1-compliant connection for overhead trolley system (VDI guideline 3643)
Encoders
All versions in conjunction with add-on encoders for various electrical interfaces:
/ES7*
Add-on encoder DR71 to 132
/EG7*
Add-on encoder DR160 to 225
/XV**
Mounting or mounting device from encoders that are not included in the SEW Portfolio
Sensors
All versions in conjunction with condition monitoring:
/DUB
Brake monitoring for function and/or wear
/DUV
Vibration monitoring
Other
Other designs
/DH
Drain hole
/2W
Second shaft end on the motor / brake motor
/RI
Reinforced winding insulation for frequency inverter operation > AC 500 V


Product variants DRL/DRM/DRK

DRL motor
In addition to the basic high overload capacity of DR motors, this motor is suited for high dynamic loads. This means that it fulfills the properties of an asynchronous servomotor.
The DRL motor in the modular DR motor system is a motor that meets the standard efficiency level. The motors are marked with IE1 according to IEC 60034 T30.
Dynamics 1
Dynamics 2
Dynamics 3
~ 200% Mdyn / MN
~ 300% Mdyn / MN
~ 350% Mdyn / MN
Torque ratings MN
2.5 to 350 Nm
Sizes
71 to 225
Lengths
S, M, MC, L, LC
Speed classes
1200, 1700, 2300, 3000 rpm

DRM motor
The DRM motor in the modular DR motor system is a 12-pole motor that allows for thermally safe operation on a 3-phase mains supply, even if the rotor is blocked. The usual product designation "torque motor" is also maintained for the DRM motor.
Every torque motor is available with 2 rated torques. Rating 2 can be three times the torque of rating 1 but either only in S3/15% cdf or in S1 continuous duty with forced cooling fan only.
Sizes
71 to 160
Lengths
S, M, L
Rating 1
S1
0.4 to 3 Nm
Rating 2
S3/15 or S1 with forced cooling fan
1.2 to 9 Nm

DRK motor
The DRK motor in the modular DR motor system is a single-phase motor that can be operated on a single-phase power supply (instead of the usual three-phase power supply). The DRK motor comes equipped with running capacitor CB.
Sizes
71 to 160
Lengths
S, M, L
4-pole power ratings
0.25 to 1.5 kW
Frequencies
50 Hz

Standard and energy-efficient motor versions:

Version
Size
71
80
90
100
112
132
DRS
Standard efficiency
DRS71
DRS80
DRS90
DRS100
DRS112
DRS132
DRE
High efficiency
–
DRE80
DRE90
DRE100
DRE112
DRE132
DRP
Premium efficiency
–
–
DRP90
DRP100
DRP112
DRP132
DRL
High dynamics
DRL71
DRL80
DRL90
DRL100
DRL112
DRL132
DRM
Torque motor
DRM71
DRM80
DRM90
DRM100
DRM112
DRM132
DRK
Single-phase motor
DRK71
DRK80
DRK90
–
–
–

Version
Size
160
180
200
225
315
DRS
Standard efficiency
DRS160
DRS180
DRS200
DRS225
DRS315
DRE
High efficiency
DRE160
DRE180
DRE200
DRE225
DRE315
DRP
Premium efficiency
DRP160
DRP180
DRP200
DRP225
DRP315
DRL
High dynamics
DRL160
DRL180
DRL200
DRL225
–
DRM
Torque motor
DRM160
–
–
–
–

 
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