ATT series0 pages
Electric Brakes and Clutches
ATT Series – Advanced Technology Brakes and Clutches
Advanced Technology –
A new design concept!
Warner Electric’s ATT Series clutches
and brakes are rugged and durable.
Besides providing the ultimate in long
life and durability, the ATT units are easily repairable... and, for the first time,
mounting a standard sheave, pulley or
sprocket to the clutch is a snap.
AT Clutches and Brakes are completely
assembled at the factory and have
been specifically designed to match
the torque ratings of standard motors,
reducers, and other power transmission
components. Easy to select and
easy to install.
Features:
ATT Tension Clutches
and Brakes
Ideal for intermediate range
applications
Both brake and clutch models for
winders and unwinders
.284 to .9 thermal horsepower
capacity
Brake wear faces replaceable on the
shaft for limited downtime
Full range of control options.
See pages 40-41.
Unit Size
Maximum
RPM
Continuous1
Dynamic Torque
Continuous Operation
Overcurrent
E-Stop Torque
Thermal HP vs. Selection RPM
36
1.09
ATT Brakes
15 lb.ft
15 lb.ft
21 lb.ft
ATTB-115
3600
62 lb.ft.
83 lb.ft.
ATT Clutches
2
ATTC-25
3600
7 lb.ft.
*
ATTC-55
3600
12 lb.ft.
*
ATTC-115
3600
41 lb.ft.
*
Notes
1. Dynamic torque is constant over a speed range of 0–600 RPM
2. Overcurrent is not used on clutch applications for tensioning
.91
B-1
30
15
T
AT
.73
.55
.36
24
5
C-11
ATT
-55
ATTB
5
ATTB-2
12
-55
ATTC
ATTC-2
5
6
.18
0
0
50
100
200
300
400
Selection RPM
ATT Clutch
ATT Brake
70
18
500
600
Heat Input (x1000 lb.ft./min.)
8 lb.ft.
3600
Consult Factory
3600
ATTB-55
Heat Input (THP)
ATTB-25
"