Spring-Set Brake Module
P-1249
819-0390
Installation Instructions
The Warner Electric Spring-Set Brake Module is designed to function as a holding brake for NEMA
C-face motors. The brake is self-engaging when the power is turned off or unintentionally interrupted.
It is to be mounted between a C-face motor and a C-face gear reducer. Do not apply overhung or
side loads to the output shaft of the Spring-Set Brake Module.
Failure to follow these instructions may result in product damage,
equipment damage, and serious or fatal injury to personnel.
Mounting the Brake to a Motor
1. Inspect the motor shaft and keyway for
burrs or damage. Remove all burrs and repair
damage so the brake module can freely slide
onto the shaft.
2. Insert the provided input key into the motor
shaft keyway. If necessary, prick punch the
motor shaft keyway to prevent the key from
sliding back while installing the brake
module. (Figure 1)
3. The input hub setscrews and the largest
ventilation slots on the housing must be
aligned to provide hex wrench access for
tightening to the motor shaft. If they are
not already aligned, apply the rated voltage to
the brake coil to release the brake, and then
rotate the shaft until the setscrews
and slots are aligned. (Figure 2)
4. Align the motor shaft and key with the brake
module keyway and slide the module onto the
motor shaft until the housing is in full contact
with the motor face. Do not use excessive
force. If the module does not freely slide on,
remove it and repair any burrs or damage on
the shaft.
5. Rotate the brake housing and/or shaft until the
input hub setscrews are accessible with a long
hex wrench. A flashlight may be required to
see the screws between the motor face and
the brake face.
Figure 1
Figure 2
Warner Electric • 800-825-9050 P-1249 • 819-0390
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6. Secure the brake module to the motor
C-face with the four hex head capscrews and
washers that are provided. (Figure 3)
7. Rotate the brake housing to align the four
mounting holes with the threaded holes in the
motor face. If possible, position the brake
module with the ventilation slots
facing down to prevent foreign matter
from falling into the unit during operation.
8. With the brake module housing in full
contact with the motor face, securely tighten
both input hub setscrews to the motor shaft
by inserting a long hex wrench through the
housing ventilation slots. (Figure 4)
Mounting to a Gear Reducer
1. Align the module output shaft and key
with the reducer bore and keyway.
2. Slide the assembly together until the module
and reducer faces are in full contact.
Do not use excessive force.
3. Secure the module to the gear reducer
flange using four 3/8-16, UNC-2A bolts
(typically furnished with the reducer).
Electrical Connections
The brake module housing is threaded for
standard conduit connectors. The brake lead
wires are fed through this hole and are to be
connected to a DC power source with the same
voltage as that listed on the brake module label.
An optional conduit box kit can be purchased to
facilitate this connection (Warner part number
5370-101-042).
If a user provided DC power source is not
available, any of Warner Electric’s CBC-100,
CBC-150, or CBC-801 controls may be used
(selection based on user requirements). Refer to
the installation sheet included with the
control for connection information.
Figure 3
Figure 4
Warner Electric • 800-825-9050 P-1249 • 819-0390
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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-1249 • 819-0390 8/11 Printed in USA
An Altra Indust rial Motion Company
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