Eaton PowerChain Management LCS Manual

Effective June 2009
Instructional Leaflet IL2C12701H01
Remote latch check switch (LCS) for
Magnum low voltage circuit breakers
warning
(1) Only qualified electrical persOnnel shOuld
be permitted tO wOrk On the equipment.
(2) always de-energize primary and
secOndary circuits if a circuit breaker
cannOt be remOved tO a safe wOrk lOcatiOn.
(3) drawOut circuit breakers shOuld be
levered (racked) Out tO the discOnnect
pOsitiOn.
(4) all circuit breakers shOuld be switched
tO the Off pOsitiOn and mechanism springs
discharged.
failure tO fOllOw these steps fOr all
prOcedures described in this instructiOn
leaflet cOuld result in death, bOdily injury,
Or prOperty damage.
Section 1: General information
A latch check switch (LCS) indicates when the
circuit breaker is “ready to close” (Figure 1).
The external version used for remote indication
consists of 1 Form C contact wired to the circuit
breaker secondary contacts for integration into
external control schemes.
ote:N Wiring the LCS for remote indication directly in
series with the SR accessory is not recommended as
this will override the “anti-pump” feature.
Required tools
• 1/4-inch drive ratchet
• 10 mm socket
Kit parts identification
Refer to Figure 1 for visual identification of the
contents of kit.
Figure 1. Contents of Kit
Section 2: Installation of
external remote LCS
To install the LCS, proceed with the following
six steps:
Step 1: Remove the front cover by unscrewing
the hex-head captive bolts (four for three-pole,
six for four-pole) that join the cover to the breaker
housing using a 10 mm 1/4-inch drive socket.
Then hold the charge handle down at about a
45-degree angle to pull off the cover.
Figure 2. Step 1
LCS (external
version shown)
Mounting Bolts

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© 2009 Eaton Corporation
All Rights Reserved
Printed in USA
Publication No. IL2C12701HO1 / Z8679
June 2009
PowerChain Management is a registered
trademark of Eaton Corporation.
All other trademarks are property of their
respective owners.
Instructional Leaflet IL2C12701H01
Effective June 2009
Remote latch check switch (LCS) for
Magnum low voltage circuit breakers
Step 2: Remove the accessory (if installed) from the indicated
position on the accessory tray by lifting its lock up and sliding the
accessory toward the front of the breaker. Then lift accessory up
and out of tray. Do not disconnect the wiring.
Figure 3. Step 2
Step 3: Connect three wires from the LCS to secondary block
positions B28, B29, and B30 per wire markings. Check that all
wire terminals are secure by pulling gently. Then push the LCS into
center slot in the accessory tray. Make sure the LCS is fully seated.
Figure 4. Step 3
Step 4: Reinstall any accessory that was removed in Step 2.
Step 5: Test the installation.
cautiOn
dO nOt tOuch the interiOr Of the breaker while the spring is
charged. push the Off buttOn first tO ensure that the breaker
is nOt clOsed. failure tO fOllOw this actiOn cOuld result in a
seriOus injury.
Measure the continuity of the LCS with an Ohm meter during this
step. With the breaker OPEN and DISCHARGED, push and release
the OFF button. The LCS should not operate. This is indicated by
the absence of an audible “click” from the switch. The Ohm meter
verifies there is no change in continuity of the LCS contacts.
Remove This Accessory
for Easier Access
Lock
LCS Secondary Block
Now charge the breaker using the manual charge handle. When the
breaker is fully charged, repeat the above test by pushing the OFF
button again. An audible “click” from the LCS should be heard and
continuity as measured by the Ohm meter should change.
Figure 5. Step 5
Step 6: Reinstall the front cover. Push the CLOSE and then the
OPEN pushbuttons to discharge all energy from the mechanism,
leaving it in an OPENED and DISCHARGED status.
Disclaimer of warranties and
limitation of liability
The information, recommendations, descriptions, and safety
notations in this document are based on Eaton Corporation’s
(“Eaton”) experience and judgment, and may not cover all
contingencies. If further information is required, an Eaton sales
office should be consulted.
Sale of the product shown in this literature is subject to the terms
and conditions outlined in appropriate Eaton selling policies or other
contractual agreement between Eaton and the purchaser.
THERE ARE NO UNDERSTANDINGS, AGREEMENTS,
WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING
WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR
MERCHANTABILITY, OTHER THAN THOSE SPECIFICALLY SET
OUT IN ANY EXISTING CONTRACT BETWEEN THE PARTIES. ANY
SUCH CONTRACT STATES THE ENTIRE OBLIGATION OF EATON.
THE CONTENTS OF THIS DOCUMENT SHALL NOT BECOME
PART OF OR MODIFY ANY CONTRACT BETWEEN THE PARTIES.
In no event will Eaton be responsible to the purchaser or user in
contract, in tort (including negligence), strict liability, or otherwise
for any special, indirect, incidental, or consequential damage or loss
whatsoever, including but not limited to damage or loss of use of
equipment, plant or power system, cost of capital, loss of power,
additional expenses in the use of existing power facilities, or claims
against the purchaser or user by its customers resulting from the
use of the information, recommendations, and descriptions
contained herein.
The information contained in this manual is subject to change
without notice.
Trip Latch
Lever