Electro-Clutch EC-375, EC-475,
EC-650, EC-825, EC-1000, EC-1225
P-210
819-0041
Installation Instructions
Contents
Installation Instructions . . . . . . . . . . . . . . . . . . .2
Torque Tabs . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Electrical Coil Data . . . . . . . . . . . . . . . . . . . . . . .5
Burnishing and Maintenance . . . . . . . . . . . . . . .6
Illustration Drawings
EC-375 EC-475 EC-650 . . . . . . . . . . . . . . .8
EC-825 . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
EC-1000 EC-1225 . . . . . . . . . . . . . . . . . . .16
Warranty . . . . . . . . . . . . . . . . . . . . . .Back Cover
Installation Instructions
Electro-Clutch
A. Mounting the Electro-Clutch
1. Ideally, the Electro-Clutch should be mounted
on a through-shaft for firm support. In the
case of a stub shaft, the stub should be as
long as the clutch assembly, although for
moderate duty applications a shaft which is
2/3 or more the length of the assembly
normally provides adequate support.
2. Insert the key in the shaft. If the keyseat is
opened at one end of the shaft, prick punch
the shaft to prevent the key from working out.
3. Slide the assembled Electro-Clutch on the
shaft. (When the Electro-Clutch is mounted
on a stub shaft, the set collar end of the
clutch should be toward the support
bearings.) Tighten the setscrews in the set
collar. (Figure 1)
Failure to follow these
instructions may result in product damage,
equipment damage, and serious or fatal
injury to personnel.
Figure 1
4. Secure the torque arm to the tab on the field
and rotor assembly. Secure the other end of
the torque arm to a solid base. Under no
circumstances should the torque arm be
pinned down so tightly that it preloads the
bearing. For more information on torque
tabs, see page 4.
Warner Electric • 800-825-9050 819-0041 • P-210
2
B. Assembling the Sheave, Pulley, or
Sprocket and Clutch
1. Install the key in the outer diameter of
the Electro-Clutch hub. (A special key is
furnished.)
2. Mount a standard sheave, pulley, or sprocket
to the Electro-Clutch with a standard tapered
bushing. Note: Only standard tapered
bushings are recommended for this
purpose. A straight bore drive component
mounted with set screws will damage the
Electro-Clutch bearings.
3. Install the belt on the sheave, pulley, or
sprocket. Keep the belt tensions within the
recommendation of the sheave or pulley
manufacturer.
C. Electrical Installation
1. Remove the mounting screws and lockwashers that hold the armature carrier assembly to
the sleeve. (Figure 2)
Figure 2
2. Remove the rotor mounting screws.
3. Insert two of the rotor screws in the removal
holes of the rotor to back the rotor off the
bearing. (Figure 3)
Each Warner Electric control is furnished with a
wiring diagram showing the correct electrical
connections between the control and the clutch.
Two straps are provided on the clutch torque
arm to hold the clutch lead wires in place.
(Service Manual P-239 contains complete
information on all standard power supplies.)
D. Replacing Worn Parts
The two main wearing parts, the armature and
the rotor, may be easily replaced. For stub shaft
mounted applications, these parts can be
replaced without removing the Electro-Clutch
from the shaft. The rotor and the armature usually wear at the same rate and should be
replaced together.
Figure 3
4. Install the new rotor on the clutch assembly.
®
Dip the mounting screws in Loctite
before
reinserting them.
5. Install the new armature assembly. Dip the
mounting screws in Loctite before reinserting
them.
Warner Electric • 800-825-9050 819-0041 • P-210
3
Torque Tabs
Many Warner Electric clutch assemblies have
a bearing mounted stationary field. By design
the bearing maintains its proper position
between the field and rotor making it easy for
the customer to mount the field-rotor assembly.
However, the bearing has a slight drag which
tends to make the field rotate with the rotor if
not restrained. Since the field has lead wires
attached, it must be restrained to prevent rotation and pulling of these wires. To counteract
this rotation force, the field has a "torque tab" to
which the customer must attach an appropriate
anti-rotational restraint.
A few hints regarding proper torque tab
restraints are in order. First and foremost, it is
important to recognize that the force to be overcome is very small and the tab should not be
restrained in any manner which will preload the
bearing. For example, if the clutch is mounted
with the back of the field adjacent to a rigid
machine member the customer should not
attach a capscrew tightly between the tab and
the machine member. This may pull the tab
back against the rigid member as shown in
Figure 4 and preload the bearing. The recommended methods are illustrated in Figures 5, 6,
and 7. The method selected is primarily a matter
of customer preference or convenience.
Figure 4
Rigid Member
with Slot Straddling Tab
Warner Electric • 800-825-9050 819-0041 • P-210
4
Figure 5
Rigid Member
Figure 6
Pin In Hole Loosely
Figure 7
Flexible Strap
Electrical Coil Data
EC/EB-375 EC EB
Voltage – DC 90 24 6 90 24 6
Resistance @ 20° C – Ohms 453.5 29.3 2.10 446.8 29.3 1.96
Current – Amperes .198 .82 2.85 .201 .82 3.07
Watts 17 20 17 18 20 18
Coil Build-up – milliseconds 62 60 59 50 60 52
Coil Decay – milliseconds 13 14 15 8 14 10
EC/EB-475 EC EB
Voltage – DC 90 24 6 90 24 6
Resistance @ 20° C – Ohms 368.9 37.8 2.32 443.1 28.8 2.05
Current – Amperes .244 .64 2.58 .203 .88 2.93
Watts 22 15 16 18 21 18
Coil Build-up – milliseconds 92 91 90 80 75 70
Coil Decay – milliseconds 18 17 16 899
EC/EB-650 EC EB
Voltage – DC 90 24 6 90 24 6
Resistance @ 20° C – Ohms 225 17.7 1.16 257.2 18.3 1.24
Current – Amperes .4 1.36 5.19 .35 1.3 4.84
Watts 36 33 31 32 31 29
Coil Build-up – milliseconds 120 115 110 112 108 105
Coil Decay – milliseconds 20 20 20 12 13 14
FB/ER-375, 475, 650 FB-375 FB-475 FB-650
Voltage – DC 90 24 90 24 90 24
Resistance @ 20° C – Ohms 446 29 310 22 235 16
Current – Amperes .201 .822 .300 1.09 .380 1.426
Watts 18 19 27 26 34 34
Coil Build-up – milliseconds 40 40 80 80 90 90
Coil Decay – milliseconds 5 10 8 10 10 10
EC/EB-1000 EC EB
Voltage – DC 90 24 6 90 24 6
Resistance @ 20° C – Ohms 248.7 19.7 1.23 248.7 19.7 1.23
Current – Amperes .36 1.22 4.87 .36 1.22 4.87
Watts 33 29 29 33 29 29
Coil Build-up – milliseconds 250 235 220 235 220 205
Coil Decay – milliseconds 70 75 80 70 75 80
EC/EB-1225 EC EB
Voltage – DC 90 24 6 90 24 6
Resistance @ 20° C – Ohms 207.3 15.1 1.04 261.7 22.3 1.33
Current – Amperes .43 1.59 5.79 .34 1.08 4.5
Watts 39 38 35 31 26 27
Coil Build-up – milliseconds 500 490 480 460 445 435
Coil Decay – milliseconds 220 230 240 190 160 140
ATC, ATTC, ATB, ATTB-25 ATC ATB
Voltage – DC 6 24 90 6 24 90
Resistance @ 20° C – Ohms 1.37 20.2 290 1.37 20.2 290
Current – Amperes 4.38 1.19 .31 4.38 1.19 .31
Watts 26.3 28.6 27.9 26.3 28.6 27.9
Coil Build-up – milliseconds 145 145 145 145 145 145
Coil Decay – milliseconds 888 9 99
ATC, ATTC, ATB, ATTB-55 ATC ATB
Voltage – DC 6 24 90 6 24 90
Resistance @ 20° C – Ohms 1.21 19.6 230 1.21 19.6 230
Current – Amperes 4.96 1.22 .39 4.96 1.22 .39
Watts 29.8 29.3 35.2 29.8 29.3 35.2
Coil Build-up – milliseconds 200 200 200 210 210 210
Coil Decay – milliseconds 20 20 20 35 35 35
ER-825, 1225 ER-825 ER-1225
Voltage – DC 90 35-75
Resistance @ 20° C – Ohms 304 235
Current – Amperes .29 .383
Watts 26 35
Coil Build-up – milliseconds 400 700
Coil Decay – milliseconds 20 20
EC/EB-825 EC EB
Voltage – DC 90 24 6 90 24 6
Resistance @ 20° C – Ohms 221 20.9 1.098 223.3 20.4 1.27
Current – Amperes .407 1.15 5.464 .4 1.18 4.74
Watts 37 28 33 36 28 28
Coil Build-up – milliseconds 225 200 180 170 170 170
Coil Decay – milliseconds 130 122 115 80 75 70
Warner Electric • 800-825-9050 819-0041 • P-210
ATC, ATTC, ATB, ATTB-115 ATC ATB
Voltage – DC 6 24 90 6 24 90
Resistance @ 20° C – Ohms 1.02 16.5 182 1.02 16.5 182
Current – Amperes 5.91 1.46 .50 5.91 1.46 .50
Watts 35.4 35 44.6 35.4 35 44.6
Coil Build-up – milliseconds 145 145 145 150 150 150
Coil Decay – milliseconds 40 40 40 45 45 45
5
Burnishing and Maintenance
Maintenance
Burnishing
Intimate metal to metal contact is essential
between the armature and the metal rings
(poles) of the magnet or rotor. Warner Electric
clutches and brakes leave the factory with the
friction material slightly undercut to assure good
initial contact.
Normally, the desired wearing-in process occurs
naturally as the surfaces slip upon engagement.
The time for wear-in, which is necessary to
obtain the ultimate torque of the unit, will vary
depending on speed, load, or cycle duty.
If maximum torque is required immediately after
installation, the unit should be burnished by
slipping the friction surfaces together at reduced
voltage. It is recommended that the burnishings
be done right on the application, if at all possible.
Burnishing at high speed will result in a
smoother wear-in pattern and reduce the time
for burnishing. The voltage should be set at
approximately 30% or 50% of the rated value.
The unit should be cycled on and off to allow
sufficient time between slip cycles to prevent
overheating.
When a Warner Electric brake or clutch is
properly assembled and installed, no further
servicing, lubrication, or maintenance should
be required throughout the life of the unit.
Wear Pattern: Wear grooves appear on the armature and magnet surfaces. This is a normal wear
condition, and does not impair functioning of the
unit. Normally, the magnet and armature, as a
mating pair, will wear at the same rate. It is the
usual recommendation that both components be
replaced at the same time.
Remachining the face of a worn armature is not
recommended. If a replacement armature is to be
used with a used magnet, it is necessary to
remachine the worn magnet face. In refacing a
magnet: (1) machine only enough material to clean
up the complete face of the magnet; (2) hold the
face within .005" of parallel with the mounting
plate; and (3) undercut the molded facing material
.001" - .003" below the metal poles.
Heat: Excessive heat and high operating
temperatures are causes of rapid wear. Units,
therefore, should be ventilated as efficiently as
possible, especially if the application requires fast,
repetitive cycle operation.
Foreign Material: If units are used on machinery
where fine, abrasive dust, chips or grit are
dispelled into the atmosphere, shielding of the
brake may be necessary if maximum life is to be
obtained.
Where units are used near gear boxes or
transmissions requiring frequent lubrication,
means should be provided to protect the friction
surfaces from oil and grease to prevent serious
loss of torque.
Oil and grease accidentally reaching the
frictionsurfaces may be removed by wiping with a
rag dampened with a suitable cleaner, which
leaves no residue. In performing this operation, do
not drench the friction material.
If the friction materials have been saturated with
oil or grease, no amount of cleaning will be completely effective. Once such a unit has been
placed back in service, heat will cause the oil to
boil to the surface, resulting in further torque loss.
Warner Electric • 800-825-9050 819-0041 • P-210
6
Torque Loss: If a brake or clutch slips or loses
torque completely, the initial check should be
the input voltage to the magnet as follows:
90-Volt Series: Connect a DC voltmeter with a
range of 0-100 or more directly across the
magnet or field terminals. With the power on
and the potentiometer turned up, a normal
reading is 90 volts, although 85 to 95 is
satisfactory. The reading should drop as the
potentiometer control is adjusted
counterclockwise.
24-Volt Series: Use a DC voltmeter with a range
of 0-30 volts or more. A normal reading is
approximately 22-26 volts.
6-Volt Series: Use a DC voltmeter of
approximately 0-15 volt range. A normal
reading is from 5.5 to 6.5 volts.
The above checks normally are sufficient.
Further checks may be made as follows: a low
range ammeter, when connected in series with
one magnet lead, correct amperage reading for
each coil voltage and unit size are found on
page 5 under Electrical Coil Data. These readings are with the power on and the potentiometer control in the maximum position.
Ohmmeter checks should be made with the
power off and the circuit open (to be certain,
disconnect one lead to the magnet). Average
resistance readings are also listed on page 5
under Electrical Coil Data for each voltage and
unit size. A very high or infinite resistance
reading would indicate an open coil.
If the above checks indicate that the proper
voltage and current is being supplied to the
magnet, mechanical parts should be checked to
assure that they are in good operating condition
and properly installed.
Warner Electric • 800-825-9050 819-0041 • P-210
7
EC-375, EC-475, EC-650
O
N
M
L
CBA
S
R
P
Q
D
E
F
J
G
K
T
I
H
AA
CC
BB
DD
Z
Y
X
Removable
Plug in Ends for
0.5" Conduit
U
V
FF
BB
W
CC
EE
EE
EE
GG
HH
II
For Bore and Keyway
Sizes See Chart Below
All dimensions are nominal, unless otherwise noted.
Size A Max. B Dia. C Min. D Dia. E Dia. FGHIJK Max. LM
375 4.078 3.125 .7505 1.313 1.375 3.344 10-24 UNC .188 .375 .344 2.047 .781 1.547
475 5.172 4.000 1.0625 1.563 1.625 3.922 1/4-20 UNC .281 .375 .578 2.359 .875 1.547
650 6.578 5.125 1.625 2.375 2.5000 4.625 1/4-20 UNC .281 .188 .563 3.047 .953 1.547
Size N Max. O Max. P Q Max. R Min. STUV Max. WX
375 2.484 4.984 .438 .609 3.000 1/4-20 UNC-2A 5/16 x 3/32 3.750 4.438 2.438 .313
475 3.219 6.266 .422 .658 3.641 1/4-20 UNC-2A 3/8 x 3/32 3.750 4.984 2.984 .313
650 3.547 7.141 .422 .722 4.359 1/4-20 UNC-2A 5/8 x 3/32 3.750 5.750 3.750 .313
Size YZAA BB CC DD EE Dia. FF GG HH Dia. II
375 .563 .750 5.000 .250 .500 .750 .563 .313 1.000 .270
475 .578 .750 5.000 .250 .500 .750 .563 .313 1.000 .270 .828
650 .563 .750 10.000 .250 .500 5.750 .563 .313 1.000 .270 .828
1.374 -3A x 5/15
1.624 -3A x 7/16
2.4985 -3A x 1/2
.260
.260
.260
.828
Warner Electric • 800-825-9050 819-0041 • P-210
8
Specifications
Average Wt.–lbs. Inertia–WR2 (lb.ft.2 )
Size Arm. & Carrier. Rotor Outer Sleeve Inner Sleeve Arm. & Carrier Rotor Outer Sleeve Inner Sleeve
EC-375 .60 .55 .49 .60 .010 .018 .001 .001
EC-475 1.13 1.12 .78 1.22 .072 .033 .006 .002
EC-650 2.3 2.5 1.6 2.37 .106 .202 .010 .013
Bore Sizes and Keyways
Size Bore Dia. Keyway
375 .625 *3/16 x 1/16
.500 1/8 x 1/16
475 .750 3/16 x 3/32
.875 *3/16 x 1/16
.625 3/16 x 3/32
650 1.125 *1/4 x 1/8
1.375 *5/16 x 3/32
1.000 1/4 x 1/8
1.250 1/4 x 1/8
*Key Furnished
Warner Electric • 800-825-9050 819-0041 • P-210
9
17
A
7
8
9
17
11
10
11
12
13
14
A
18
15
16
14-1
6
5
4
3
17
1-4
1-2
1-1
1-3
1
1-5
2
EC-375, EC-475, EC-650
Electrical and Mechanical Data
Static Max. Inertia–WR2(lb. ft2) Total
Model Voltage Torque Speed Armature Outer Inner Weight
Size DC (lb. ft.) RPM & Carrier Rotor Sleeve Sleeve lbs.
EC-375 6 16 lb. ft. 5000 .010 .018 .001 .001 4
EC-475 6 30 lb. ft. 4500 .072 .033 .006 .002 8
EC-650 6 95 lb. ft. 3600 .106 .202 .010 .013 18
24 16 lb. ft. 5000 .010 .018 .001 .001 4
90 16 lb. ft. 5000 .010 .018 .001 .001 4
24 30 lb. ft. 4500 .072 .033 .006 .002 8
90 30 lb. ft. 4500 .072 .033 .006 .002 8
24 95 lb. ft. 3600 .106 .202 .010 .013 18
90 95 lb. ft. 3600 .106 .202 .010 .013 18
Warner Electric • 800-825-9050 819-0041 • P-210
10
Component Parts
EC-375 EC-475 EC-650
Item Description Part No. Qty. Part No. Qty. Part No. Qty.
1 Armature & Carrier Assembly 5380-101-006 1 5181-101-003 1 5281-101-003 1
1-1 Capscrew 797-1214 3 797-1214 3 797-0086 3
1-2 Lockwasher 950-0102 3 950-0102 3 950-0102 3
1-3 Autogap Accessory 5180-101-011 3 5181-101-010 4 5181-101-010 4
1-4 Carrier 5380-295-002 1 5181-295-002 1 5281-295-002 1
1-5 Armature 5180-111-002 1 5181-111-002 1 5281-111-002 1
2 Inner Sleeve 11 1
1/2" Bore 803-0054
5/8" Bore 803-0055 803-0044
3/4" Bore 803-0042
7/8” Bore 803-0043
1" Bore 803-0047
1-1/8" Bore 803-0049
1-1/4" Bore 803-0048
1-3/8" Bore 803-0050
3 Screw 797-1050 6 797-1039 4 797-0083 4
4 Lockwasher 950-0105 6 950-0102 4 950-0103 4
5 Retainer Plate 748-0391 1 748-0393 1 748-0389 1
6 Rotor 5180-751-001 1 5181-751-001 1 5281-751-001 1
7 Ball Bearing 166-0149 1 166-0109 1 166-0110 1
8 Retainer ring 748-0017 1 748-0023 1 748-0002 1
9 Outer Sleeve 5180-104-001 1 5181-014-001 1 5281-104-001 1
10 Sleeve Bearing 166-0177 1 166-0179 1 166-0178 1
11 Oil Seal 795-0027 2 795-0028 2 795-0026 2
12 Retainer Ring 748-0101 1 748-0102 1 748-0104 1
13 Ball Bearing 166-0150 1 166-0110 1 166-0104 1
14 Field 11 1
6 volt 5180-451-002 5181-451-002 5281-451-002
24 volt 5180-451-004 5181-451-004 5281-451-004
90 volt 5180-451-005 5181-451-005 5281-451-005
14-1 Terminal Accessory 5103-101-002 1 5103-101-002 1 5311-101-001 1
15 Retainer Ring 748-0018 1 748-0002 1 748-0004 1
16 Set Collar 266-0011 1 266-0012 1 266-0010 1
17 Accessory, W/Keys 11 1
1/2" Bore 5180-101-001
5/8" Bore 5180-101-001 5181-101-001
3/4" Bore 5181-101-001
7/8" Bore 5181-101-002
1" Bore 5281-101-001
1-1/8" Bore 5281-101-001
1-1/4" Bore 5281-101-001
1-3/8" Bore 5281-101-002
18 Conduit Box 5200-101-010 1 5200-101-010 1 5200-101-010 1
These units when used with the correct Warner Electric conduit box, meets the standards of UL508 and are listed under guide care #NMTR, file
#59164. These units are CSA Certified under file #LR11543.
Warner Electric • 800-825-9050 819-0041 • P-210
11
EC-825
N
B
D
C
A
R
K
L
G
I
H
J
EF
QP
O
S
T
Removable plug in
ends for 1/2" conduit
X
W
V
U
Z
AA
CC
DD
Y
45°
For Bore & Keyway Sizes
see chart below
MM
OO
LL
DD
HH
KK
JJ
BB
FF
GG
EE
II
M
Specifications
Model Size Voltage DC & Inner Sleeve Outer Sleeve Total Weight lbs. & Inner Sleeve Outer Sleeve
Inertia–WR2(lb. ft2) Average Weight–lbs.
Armature, Hub Rotor & Armature, Hub Rotor &
EC-825 6 .35 .87 28 6.0 18.5
24 .35 .87 28 6.0 18.5
90 .35 .87 28 6.0 18.5
Warner Electric • 800-825-9050 819-0041 • P-210
12
EC-825
Bore Sizes and Keyways
Size Bore Dia. Keyway
825 1.125 1/4 x 1/8
1.250 1/4 x 1/8
1.375 5/16 x 3/32
All dimensions are nominal, unless otherwise noted.
Size A Max. B Dia. C D Min. E Dia. F Dia. GH IJ
825 8.656 5.656 4.625 1.437 2.375 2.5000 .281 1/4-20 UNC .188 .563
Size K Max. LMN Max. OPQ Max. R* ST
825 3.047 5.219 1.547 8.000 5/16-18 UNC-2A 1.547 4.468 5/8 x 3/32 6.813 3.750
2.4985 -3A x 3/8
Size UVWXY Z AA BB CC DD Dia.
825 5.063 .875 — .375 .750 16.625 17 .750 .375 .330
Size EE FF GG Dia. HH II JJ KK LL MM NN OO
825 .438 .875 .313 .250 1.000 1.750 2.000 1.500 .750 .250 .270
* Key supplied
.321
.260
Warner Electric • 800-825-9050 819-0041 • P-210
13
1
1c
1b
1a
3
2
13
12
13
20
17
19
14
16
18
4
5
6
7
9
8
10
11
20
15
EC-825
Warner Electric • 800-825-9050 819-0041 • P-210
14
Component Parts
EC-825
Item Description Part No. Qty.
1 Armature Assembly 5282-111-002 1
1a Hub 540-1298 1
1b Autogap Accessory 5201-101-068 3
1c Armature 5282-111-001 1
2 Capscrew 797-0081 4
3 Lockwasher 950-0103 4
4 Inner Sleeve 1
1-1/8” Bore 803-0069
1-1/4” Bore 803-0070
1-3/8” Bore 803-0071
5 Capscrew 797-0086 4
6 Lockwasher 950-0103 4
7 Rotor Assembly 5282-751-001 1
8 Ball Bearing 166-0110 1
9 Retainer Ring 748-0102 1
10 Retainer Ring 748-0002 1
11 Rotor Adapter 5282-105-002 1
EC-825
Item Description Part No. Qty.
12 Roller Bearing 166-0178 1
13 Oil Seal 795-0026 2
14 Retainer Ring 748-0104 1
15 Ball Bearing 166-0104 1
16 Retainer Ring 748-0004 1
17 Field
6 volt 5282-451-002
24 volt 5282-451-004
90 volt 5282-451-005
18 Set Collar 266-0010 1
19 Conduit Box 5200-101-012 1
20 Mounting Accessory with Keys 5282-101-001 1
These units when used with the correct Warner Electric conduit
box, meets the standards of UL508 and are listed under guide
care #NMTR, file #59164. These units are CSA Certified under file
#LR11543.
Warner Electric • 800-825-9050 819-0041 • P-210
15
EC-1000, EC-1225
A
D
C
B
PQ
O
EF
R
H
J
G
I
K
N
L
M
For Bore and Keyway
Sizes See Chart Below
S
T
45°
W
AA
Z
Y
DD
CC
V
U
MM
OO
LL
NN
KK
JJ
II
HH
BB
GG
FF
EE
Removable
Plug in Ends for
0.5" Conduit
X
Specifications
Model Size Voltage DC Torque (lb. ft.) Max. Speed RPM Arm. & Hub Rotor Outer Sleeve Inner Sleeve Weight lbs.
EC-1000 6 240 lb. ft. 2000 .720 .894 .129 .036 41
24 240 lb. ft. 2000 .720 .894 .129 .036 41
90 240 lb. ft. 2000 .720 .894 .129 .036 41
EC-1225 6 465 lb. ft. 2000 1.8 2.4 .129 .061 85
Warner Electric • 800-825-9050 819-0041 • P-210
16
24 465 lb. ft. 2000 1.8 2.4 .129 .061 85
90 465 lb. ft. 2000 1.8 2.4 .129 .061 85
Static Inertia–WR2(lb. ft2) Total
EC-1000, EC-1225
Bore Sizes and Keyway
Size Bore Dia. Keyway
1000 1.375 *5/15 x 5/32
1.625 *3/8 x 1/8
1225 1.625 *3/8 x 5/32
1.875 *1/2 x 1/4
2.125 *1/2 x 3/16
*Key Furnished
All dimensions are nominal, unless otherwise noted.
Size A Max. B Dia. C D Min. E Dia. F Dia. GH IJK Max. LM
1000 10.328 6.531 6.344 1.750 2.875 2.9375 .344 5/16-18 UNC .188 .750 3.969 6.000 1.547
1225 12.672 7.531 6.969 2.234 3.625 3.750 .406 5/81-16 UNC .375 .859 5.219 7.781 1.547
2.9365 -3A x 3/8
3.749 -3A x 3/4
Size N Max. OPQ Max. R* STUVWXY
1000 9.031 5/16-18 UNC-2A 1.547 5.281 3/4 x 1/8 7.688 3.750 6.125 .875 .344 .375 .750
1225 11.016 5/16-18 UNC-2A 1.547 7.047 7/8 x /8 8.688 3.750 7.000 .875 .344 .375 .750
Size Z AA BB CC DD Dia. EE FF GG Dia. HH II JJ KK LL MM NN OO
1000 16.625 17 .750 .375 .330 .438 .875 .313 .250 1.000 1.750 2.000 1.500 .750 .250 .270
1225 16.625 17 .750 .375 .330 .438 .875 .313 .250 1.000 1.750 2.000 1.500 .750 .250 .270
* Key supplied
.321 .260
.321 .260
Warner Electric • 800-825-9050 819-0041 • P-210
17
EC-1000, EC-1225
1
1-1
1-2
1-4
21
11
12
14
13
21
15
16
17
18
20
19
22
3
4
2
5
6
7
8
21
10
9
10
1-3
1-5
Warner Electric • 800-825-9050 819-0041 • P-210
18
Component Parts
EC-1000 EC-1225
Item Description Part No. Qty. Part No. Qty.
1 Armature & Carrier Assembly 5283-111-001 1 5284-111-001 1
1-1 Capscrew 797-1163 6 797-1163 8
1-2 Lockwasher 950-0111 6 950-0111 8
1-3 Autogap Accessory 5201-101-008 3 5201-101-008 4
1-4 Hub 540-1338 1 540-1340 1
1-5 Armature 5302-111-013 1 5385-111-003 1
2 Inner Sleeve 11
3/8" Bore 803-0027
1-1/2" Bore 803-0166
1-5/8" Bore 803-0028
1-5/8" Bore 803-0078
1-7/8" Bore 803-0030
2-1/8" Bore 803-0031
3 Capscrew 797-0083 8 797-0416 8
4 Lockwasher 950-0103 8 950-0106 8
5 Rotor Assembly 5283-101-002 1 5284-101-006 1
6 Ball Bearing 166-0168 1 166-0170 1
7 Retainer Ring 748-0067 1 748-0503 1
8 Outer Sleeve 803-0025 1 803-0032 1
9 Roller Bearing 166-0180 1 166-0181 1
10 Oil Seal 795-0029 2 795-0033 2
11 Adapter Ring 748-0480 1 748-0466 1
12 Ball Bearing 166-0163 1 166-0163 1
13 Retainer Ring 748-0502 1 748-0502 1
14 Retainer Ring 748-0114 1 748-0114 1
15 Field 11
6 volt 5283-451-002 5284-451-002
24 volt 5283-451-010 5284-451-010
90 volt 5283-451-003 5284-451-003
16 Lockwasher 950-0355 6 950-0359 6
17 Capscrew 797-0083 6 797-0416 6
18 Set Collar 266-0015 1 266-0016 1
19 Set Screw 797-0468 2 797-0130 2
20 Terminal Accessory 5311-101-001 1 5311-101-001 1
21 Mounting Accessory with Keys 11
1-3/8" Bore 5283-101-005
1-1/2" Bore 5283-101-009
1-5/8" Bore 5283-101-006 5284-101-007
1-7/8" Bore 5284-101-001
2-1/8" Bore 5284-101-002
22 Conduit Box 5200-101-011 1 5200-101-011 1
These units when used with the correct Warner Electric conduit box, meets the standards of UL508 and are listed under guide care #NMTR,
file #59164. These units are CSA Certified under file #LR11543.
Warner Electric • 800-825-9050 819-0041 • P-210
19
Warranty
Warner Electric LLC warrants that it will repair or replace (whichever it deems advisable) any
product manufactured and sold by it which proves to be defective in material or workmanship
within a period of one (1) year from the date of original purchase for consumer, commercial or
industrial use.
This warranty extends only to the original purchaser and is not transferable or assignable without
Warner Electric LLC’s prior consent.
Warranty service can be obtained in the U.S.A. by returning any defective product, transportation
charges prepaid, to the appropriate Warner Electric LLC factory. Additional warranty information
may be obtained by writing the Customer Satisfaction Department, Warner Electric LLC, 449
Gardner Street, South Beloit, Illinois 61080, or by calling 815-389-3771.
A purchase receipt or other proof of original purchase will be required before warranty service is
rendered. If found defective under the terms of this warranty, repair or replacement will be made,
without charge, together with a refund for transportation costs. If found not to be defective, you
will be notified and, with your consent, the item will be repaired or replaced and returned to you
at your expense.
This warranty covers normal use and does not cover damage or defect which results from
alteration, accident, neglect, or improper installation, operation, or maintenance.
Some states do not allow limitation on how long an implied warranty lasts, so the above limitation
may not apply to you.
Warner Electric LLC’s obligation under this warranty is limited to the repair or replacement of the
defective product and in no event shall Warner Electric LLC be liable for consequential, indirect,
or incidental damages of any kind incurred by reason of the manufacture, sale or use of any
defective product. Warner Electric LLC neither assumes nor authorizes any other person to give
any other warranty or to assume any other obligation or liability on its behalf.
WITH RESPECT TO CONSUMER USE OF THE PRODUCT, ANY IMPLIED WARRANTIES WHICH
THE CONSUMER MAY HAVE ARE LIMITED IN DURATION TO ONE YEAR FROM THE DATE OF
ORIGINAL CONSUMER PURCHASE. WITH RESPECT TO COMMERCIAL AND INDUSTRIAL
USES OF THE PRODUCT, THE FOREGOING WARRANTY IS IN LIEU OF AND EXCLUDES ALL
OTHER WARRANTIES, WHETHER EXPRESSED OR IMPLIED BY OPERATION OF LAW OR
OTHERWISE, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS.
Some states do not allow the exclusion or limitation of incidental or consequential damages, so
the above limitation or exclusion may not apply to you. This warranty gives you specific legal
rights and you may also have other rights which vary from state to state.
Changes in Dimensions and Specifications
All dimensions and specifications shown in Warner Electric catalogs are subject to change without
notice. Weights do not include weight of boxing for shipment. Certified prints will be furnished
without charge on request to Warner Electric.
Warner Electric LLC
31 Industrial Park Road • New Hartford, CT 06057
815-389-3771 • Fax: 815-389-2582
www.warnerelectric.com
P-210 819-0041 9/11 Printed in USA
An Altra Industrial Motion Company
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