19
Type designation consists of a group of letters and numbers determined by internal manufacturer’s
standard. Type designation:
A B C D E F G H I J K
5
AT
A
100
L
A
-4
E
T
/T4
E
5
ABT
112
MR
A
-4
E
T
/T4
H
7
ATA
280
M
-4
E
T
/T4
MARK
A
: Efficiency
- without marking - IE1,
E
- IE2,
H
- IE3,
MARK
B :
Series
5
motor series design in aluminum alloy housing (design B3 – cast feet)
-
7
motor series design in cast iron or welded design of housing (design B3 - mounted feet)
MARK
C:
Motor type designation
AT
Explosion-proof motors: Ex protection:“flame proof- „d/db“
ATP
same as AZP but in Ex protection:“flame proof- „d/db“
ATPV
same as AZPV but in Ex protection:“flame proof- „d/db“
ABT
AT + marine
ABTP
ATP + marine
ABTPV
ATPV + marine
ATL
Explosion-proof motors: Ex protection:“flame proof- „d/db“ FOR LOW TEMP.
ABTL
ATL + marine
MARK D
: Additional type designation mark (single letter or combinations of letters): A - electric
motors with special mounting dimensions and/or special free shaft end dimensions,
E
- electric
motors of special electric design (special voltage or power ),
K - electric motors with electromagnetic
brake mounted on
MARK E
: IEC frame size: 71 – 315 frame size
MARK F
: frame length mark: S=Short, M=Medium, L=Long and X if used longer frame or on non
drive end side deeper bearing shield (SX, MX, LX)
MARK G
: power designations: A, B, C, … - power acc. to stator / rotor lamination length and R if
used reduced power in bigger (higher) frame then acc. to IEC 60072 (R, RA, …)
MARK H
: number of poles mark (2 -8) (4/2, 6/4, …, 8/4/2, 6/4/2, ..)
MARK I
: type of explosion protection mark (single letter or combination of letters)
-
D- motor in type of protection ”explosion-proof enclosure-d” and terminal box in type of
protection explosion-proof enclosure-d”, design Ex db IIC (IIB)
-
E- motor in type of protection ”explosion-proof enclosure-d” and terminal box in type of
protection “increased safety-e”, design Ex
db eb
IIC (IIB)
-
K- motor in type of protection ”explosion-proof enclosure-d” equipped with frame lid on which
the certified cable bushing or cable gland in type of protection ”explosion-proof enclosure-d” is
mounted, design Ex db IIC (IIB)
-
P- motor in type of protection –„protection by enclosure“ design Ex tb IIIC
MARK J
: additionally mounted or built-in equipment mark (single letter or combination of letters): A-
motor with space heaters, G-motor with encoder mounted on, T-motor with thermal protection
MARK K-
temperature class mark or max. temperature:
T3
T4
T5
T6
For gas
T3-200°C
T4-135°C
T5-100°C
T6-85°C
For dust
T160°C
T130°C
All motors from this catalogue are made in their basic design in the index of protection
IP55
. This is
the type of protection which protects people against the contact with the parts under electrical tension
(“live” parts), and the moving parts inside of enclosure. Further, it protects the electric device itself
from the harmful down settling of dust and from the water jets from all directions. Index of protection is
defined on the motor’s nameplate and should be considered when installing the motor into the
working position.
On request, there are also motors made to comply with other indexes of protection, usually
IP56,
IP65,
IP66
and
IP67
.
