Siemens RL Instruction Manual page 23

Instal l ation
breaker and move t he racking mechanism to the D IS­
CONNECTED posit ion.
To prepare circuit breaker for insertion into the cubicle,
4.
follow steps A-D of Figure 1 on Page 5.
5. Push breaker to D ISCONNECTED posit ion. Interlock bar
prevents movement of breaker in cell, unless trip bar is
depressed.
6. While holding t he t rip bar in, open the racking window
and insert t he racking crank.
7. Use crank to rack breaker into cell.
8. Check door iris for free movement while closing door.
9. To remove circuit breaker, reverse the above proce­
dures.
1 0. After t he circuit breaker is placed in the compartment .
rack it t o t he TEST position.
1 1 . Open t he compartment door. Close and t rip t he circuit
breaker. Refer to OPERATING PROCEDURE. Pages 6-9
for manually and elect rically operated breakers.
D uring t he closing operat ion, observe t hat t he contacts
move freely without interference or rubbing between mov­
able arcing contacts and parts of t he arc chutes. Then
refer to OPERATION, Pages 6-9 for a detailed descript ion
A DANGER
Heavy weight overhead.
Can cause death, personal injury or
property damage
Always use approved lift ing means to handle
circuit breakers or fuse carriages. Follow
instructions for use of lifting bar assembly.
Avoid excessive speeds and sudden stops.
Never lift a circuit breaker or fuse carriage
above an area where ersonnel are located.
4
of the circuit breaker operat ing characteristics before
placing t he circuit breaker in service. Make sure circuits
are not energized.
1 2. Trip units and accessory devices should receive a
t horough check before placing the circuit breaker in
service. This check makes certain t hat adjustments are
proper and parts are not damaged. Refer to 'Static Trip
I l l Informat ion and Instruction Guide', SG-31 18.
1 3. Drawout circuit breakers are eq uipped wit h an interlock
to prevent movement of a closed circuit breaker into or
out of the connected posit ion. Circuit breaker interlock
operat ion should be checked before it is energized. See
DRAWOUT INTERLOCK, Page 9, and SPRING D IS­
CHARGE INTERLOCK, Page 9, for a description of t hese
interlocks.
14. After complet ing t he installation inspection, check t he
control wiring (if any) and test t he insulat ion.
1 5. Close t he compartment door. Rack the circuit breaker
into the CONNECTED position. Refer to RACKING
MECHANISM. Page 9. Remove the racking crank and
close t he racking window.
16. The circui t breaker can now be closed to energize t he
circuit .