CBS ArcSafe RRS-3-LAR1 User manual

WHAT STANDS
BETWEEN YOU
AND ARC-FLASH
DANGER?
CBS Safe®
A Group CBS Company
Arc
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WE
DO.
Rev. October 2019
RRS3LAR1
A Portable Device for Remotely Racking
LA-Style Circuit Breakers
USERS MANUAL

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CBS Safe®
A Group CBS Company
Arc
User’s Manual for the RSK-3-LAR1 model (US Patent 9,520,248)
• 1.0 Arc-blast Hazards
• 2.0 Application Information
• 3.0 General Safety Information
• 4.0 Cables
• 5.0 Carrying Case
• 6.0 Controller
• 7.0 Power Supply
• 8.0 Installing and Removing Racking Motor
• 9.0 Sequence of Operation
• 10.0 Care and Storage
• 11.0 Specications
• 12.0 Troubleshooting
• 13.0 Warranty
1.0 Arc-blast Hazards
The hazards associated with electrical arc-blasts are well documented.
Studies conducted by numerous industries and professional
organizations have sought to quantify the intensity of arc-blast, the
risks to personnel, and various methodologies for mitigating the risks.
Without doubt, increasing the distance between the arc and a
human is the single greatest favorable factor in reducing injuries.
Remote racking is not a panacea, but rather one more tool available
for protecting workers while they are performing electrical switching.
Using the RRS-3-LAR1 remote racking device may not negate
the need for additional personal protective measures. The
user is ultimately responsible for evaluating each situation to
determine if additional protective measures are needed.
BREAKER RACKING MAY
PRESENT RISK OF SERIOUS
INJURY OR DEATH. THIS
DEVICE SHOULD ONLY
BE USED BY QUALIFIED
PERSONS AFTER CAREFUL
ANALYSIS OF THE HAZARDS.
WARNING

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2.0 Application Information
The RRS-3-LAR1 is suitable for most LA circuit
breakers sold by Siemens and Siemens-Allis.
The same internal racking mechanism was utilized
for all LA breakers, regardless of the frame size.
The RRS-3-LAR1 should work with all LA breakers,
800 amp frame through 5000 amp frame.
DO NOT attempt to use the RRS-3-LAR1 with any
breaker other than a LA.
3.0 General Safety Information
Carefully read and comply with all safety instructions
listed below.
The RRS-3-LAR1 contains sealed lead-acid (SLA) batteries.
In the unlikely event of a battery rupture, treat all liquids
and vapors as potentially hazardous (sulfuric acid).
Whenever the RRS-3-LAR1 is powered from an AC
source, always use the (included) GFCI-equipped
power cord. If the GFCI trips two consecutive times,
discontinue AC-powered use and contact the factory.
Whenever the lid is open the unit must be protected
from water intrusion.
Never close the carrying case while the unit is powered on.
4.0 Cables
4.1 Connecting and disconnecting the control
cable
1. Align the keyway on the cable connector with the key
on the power supply connector.
2. Push in and engage the thread on the coupling nut and
turn clockwise.
3. Use a similar technique to connect the cable to the
controller.
4.2 AC Power Cable / GFCI
ALWAYS use the GFCI-equipped power cable that was
supplied with the RRS-3-LAR1. The automatic GFCI does
not require resetting upon initial power-up. However, the
GFCI should be tested prior to use by depressing the white
TEST button. The GFCI should then trip. It is necessary
to press the red Reset button before proceeding.
If the GFCI fails to trip when the Test button is
depressed, DISCONTINUE AC-powered USE immediately
and contact the factory.
If the GFCI tests properly without a load, but trips when
a load is applied, a ground fault exists. A REAL SHOCK
HAZARD EXISTS! Immediately discontinue use and
contact the factory.
If the RRS-3-LAR1 is supplied from an extension cord, the
GFCI cannot sense an upstream ground fault, i.e. a fault
in the extension cord. For this reason, extension cords
should be connected to a GFCI outlet or portable GFCI.
4.3 Racking Head Cable
The racking head cable is a high-quality, super-exible,
multiple conductor cable, with an overall braided shield.
The racking head cable can easily be coiled and stored
in the pocket toward the front of the carrying case.
Care should be taken to ensure the carrying case lid does
not crush any of the cables.
5.0 Carrying Case
To lessen the chances of a tip over, the telescoping
tag-along handle should be completely collapsed
whenever the RLR1 is in use.
To safeguard against the case
lid breaking the control cable
connector, the lid latches should
always be left in the ‘down’
position whenever the lid is open.

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6.0 The Controller
6.1 The ENABLE button
Upon initial power-up, the Enable button must be
depressed for at least one second in order to advance
to the next video screen.
6.2 The Rack IN / Rack OUT rocker switch
The rocker switch is used to select whether the racking
motor racks the breaker IN or OUT. The rocker switch is
spring return to center, OFF.
The Enable button and rocker switch must BOTH be
HELD CONTINUOUSLY in order to run the racking motor.
6.3 Startup Screens
The video screen serves multiple functions.
Upon powering-up the RRS-3-LAR1, the introductory
screen will appear. Pressing the Enable button for one
second will advance the display to the next screen.
After reading the warning screen, once again depress the
Enable button for one second to advance to the normal
operating screen.
6.4 Operating Screen
The operating screen allows the user to constantly monitor
the instantaneous torque being applied.
6.5 Torque Limiter Failure
• The control circuitry is designed to allow a
pre-determined maximum current to ow to the
racking motor, thereby precisely controlling torque.
• An independent circuit, utilizing a Hall-eect current
sensor, continuously monitors the amount of current
owing to the motor. This is used for the torque bar
graph that is displayed on the graphic display.
Direction
Rocker
Switch
Enable
Pushbutton
RSK-LAR1
Video
Display

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• If the motor current exceeds a certain value the control
system will inhibit ALL operations and display the
message shown above.
• It is possible that a spurious current has falsely triggered
this response. Simply turn the main power switch OFF
and back ON. If the message appears again, discontinue
using the device until the factory has been consulted.
• CONTINUED USE MAY RESULT IN BREAKER DAMAGE.
7.0 Power Supply
7.1 Power Supply Indicators
RED: indicates that AC power is present.
GREEN: indicates DC power is present.
YELLOW: indicates that DC voltage has fallen to
approximately 21 volts and that the unit should be supplied
from AC power as soon as possible. See section 7.4.
7.2 Power Supply Function
The RLR1 may be powered from either, the on-board
batteries or from a 115 volt, 60 hz, AC source.
If AC power is present, the power supply will
automatically switch from batteries to the AC
source and begin recharging the batteries.
Ensure the cooling fan exhaust is never restricted while
the unit is powered on. NEVER completely close the case
lid with power switch in the ON position.
7.3 Recharging the Battery
In order to recharge the batteries, simply provide AC power
and turn the power switch ON. The red AC indicator and
green DC indicator should be illuminated and the cooling
fan should be running. The control cable does not need to
be plugged-in. Although the power supply regulates the
charging voltage and current, it is preferred that the unit
not be continuously charged for more than 24 hours.
8.0 The Racking Head
8.1 Key components of the Racking Head
are as follows:
AC power
receptacle
Power switch
Control
cable jack
AC fuse
Indicator
lights
RRS-3-LAR1
Drive
socket
Tang
Motor shaft
handwheel
Flashing Red/Blue
‘running’ indicator

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8.3 Removing the Racking Motor
from the Breaker
To remove the racking motor when racking is complete,
slightly lift up on the rear of the racking motor and pull
unit out to remove (Lifting up on the rear is necessary to
allow the racking head tang to disengage the racking
mechanism).
8.4 Racking to ‘full in’or‘full out’ Limits
The RRS-3-LAR1 electronically limits the amount
torque that is applied to the racking mechanism.
By observing the torque bar graph on the right side
of the graphic display, the operator should notice an
increase in torque as the breaker stabs are engaging the
switchgear bus, as well as when the breaker is racked
to either extreme limit (racked in or racked out).
Anytime the racking motor drives to a stalled condition,
the control system will stop the motor and then reverse
direction to back-off the racking mechanism by
approximately 1/2 turn of the racking mechanism –
provided both, the Enable button and Racking rocker
switch are held. The graphic display will then
indicate“Complete”.
Additionally, the racking motor is equipped with a
stall-sensor to sense motor stall. DO NOT be hesitant to
run the racking motor to‘full stall’ in either direction. To
protect the racking motor, the control system limits the
amount of time the motor can remain in a stalled condition,
as well as limiting the motor current to a safe level.
8.2 Engaging the Racking Motor to the Breaker
Racking Mechanism
The racking head of the RRS-3-LAR1 MUST be
installed using the technique described below.
STEP 1: Insert the racking
head at approximately
45 degrees.
STEP 2: Insert the
racking head until the
lower tang drops down
past the edge of the
racking screw window.
STEP 3: Rotate the
rear of unit upward
so that the rear is
slightly higher than
the racking head
entering the breaker.
STEP 4: While holding the
unit with the rear slightly
higher than the racking
head, push the unit toward
the breaker, engaging the
racking screw. The racking
head tang will engage
part of the racking screw
mechanism when the
racking unit is released to a
level position. This will keep
the unit from working out of
the breaker during racking.
If engaging the drive socket
is dicult, the handwheel
can be rotated to reposition
the drive socket slightly.
Typically, no more than 4 or
5 turns should be required.

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11.0 Specifications
12.0 Troubleshooting Guide
9.0 Sequence of Operation
10.0 Care and Storage
The RLR1 contains no user-serviceable parts. The sealed
lead-acid batteries should be replaced at 24-month
intervals. Contact the factory.
STEPS SECTION
Connect the control cable to the power supply
and handheld control unit.
4.1
If AC power is used, test the GFCI. 4.2
Power-up the power supply by turning toggle
switch ON. The green ‘DC’light should illuminate.
If the unit is plugged into AC power, the red ‘AC’
should illuminate too. The cooling fan should
be running. If the yellow‘Low DC’ light comes
on, plug the unit into an AC power source.
7.0
Observe the display on the handheld
controller. Press the Enable button to
acknowledge you have read the warnings
and to advance to the next screen.
6.0
Engage the racking head to the breaker racking
mechanism.
8.0
Standing outside the arc-ash boundary zone,
depress the Enable button while simultaneously
depressing the Racking rocker switch in the
desired direction, i.e. Rack IN or Rack OUT.
6.0
Observe the video display to monitor the torque
that is being applied.
6.4
Release either, the Enable button or the Racking
rocker switch to stop the racking motor at
any time.
6.1-6.2
If the Enable button and Racking rocker switch
are held continuously, once the motor drives
to a stalled condition, it will automatically
stop, and reverse directions until the racking
nut (socket) turns approximately 1/2 turn.
The display will then say“Complete”.
8.2
MECHANICAL
Gearmotor theoretical max torque 36 ft. lbs.
Gearmotor torque limit factor 22 ft. lbs.
Total unit weight 35 lbs.
ELECTRICAL
AC Input voltage 115 volts, 60 Hz
AC Fuse type 3 amp, 4AG
Battery voltage 24 volts
Gearmotor voltage 24 volts
Max battery charging current 500 ma
Battery capacity 3.2 Ahr
Battery type sealed lead-acid
SYMPTOM ACTION
Graphic display doesn’t
startup properly.
Turn power supply switch OFF,
wait 3-seconds, turn power supply
switch ON.
Unit goes into“Lockout”
and displays a message
saying the“torque limiting
circuitry”may have failed.
Cycle power OFF/ON If
“Lockout” recurs, discontinue
use, and contact the factory.
GFCI trips. Disconnect power cable from
the RRS-3-LAR1. Reset GFCI. If
the GFCI will not reset, either
the GFCI or the power cord is
defective. If the GFCI only trips
when the power cord is plugged
into the RRS-3-LAR1, there is an
internal fault. Contact the factory.

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2616 Sirius Road | Denton, TX 76208
Ph: 877-4-SAFETY | Ph: 940-382-4411 | Fx: 940-382-9435
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U.K. /Europe Office
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United Kingdom MK57EL
Phone: [phone]
13.0 Warranty
CBS ArcSafe guarantees all products manufactured by
CBS ArcSafe only against defects in materials and/or
workmanship for a period of twelve (12) months
commencing on the date the product is received by the
customer. THIS WARRANTY IS IN LIEU OF ALL OTHER
EXPRESS OR IMPLIED WARRANTIES INCLUDING THOSE OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE.
CBS ArcSafe will, at its option and its cost (excluding
shipping expenses), repair, replace or refund the
purchase price of any product manufactured by
CBS ArcSafe which has a defect in materials and/
or workmanship. THIS IS CUSTOMER’S EXCLUSIVE
REMEDY FOR BREACH OF WARRANTY. IN NO EVENT
WILL CBS ARC SAFE LIABILITY FOR DAMAGES (WHETHER
ARISING FROM BREACH OF CONTRACT OR WARRANTY,
NEGLIGENCE, STRICT LIABILITY OR OTHERWISE) EXCEED
THE PURCHASE PRICE OF THE PRODUCT CONCERNED
NOR WILL CBS ARC SAFE BE LIABLE FOR PUNITIVE,
INCIDENTAL, CONSEQUENTIAL OR SPECIAL DAMAGES
(INCLUDING WITHOUT LIMITATION LOST PROFITS) EVEN
IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
CBS ArcSafe reserves the right to disallow warranty
repairs if the unit has been disassembled or misused,
as determined by CBS ArcSafe in good faith. Please
contact us at (877)-472-3389 for a return authorization.