GE Industrial Solutions Spectra RMS Cable Operators User Manual
DEH-40467
Installation Instruction for Cable
Operator Mechanisms for SE150,
RMS™ Circuit Breakers
g
SF250, SG600 & SK1200 Spectra
Type SRCM1EF, SRCM1G, SRCM1K, Cable Operated Mechanism Assemblies,
Cable Series SC3L-SC10L, SC3H-SC10H and GEPC Rotary Handles PB769780A,
PB769580A, and PB769380A.
General
General Electric Cable Operating Mechanisms are suitable
for application with GE circuit breakers mounted in a wide
variety of enclosure types and sizes.
The cable-operated mechanism can be directly mounted
inside the enclosure door and does not involve any
mounting interface with the enclosure. Standard mounting
screws for tapped holes are furnished with each mechanism
to mount the Interface Mechanism onto the enclosure door.
The cable-operated assembly is combined with one of eight
operating cables, with lengths from 3 to 10 feet, to cover a
broad range of breaker mounting locations in the
enclosure. The cable links the interface assembly to the
breaker-mounted operating mechanism and transmits the
mechanical force and motion of the handle mechanism to
the breaker-mounted mechanism. The force and motion of
cable operated mechanism is transmitted independent of
the breaker-mounting plane or location, relative to the
location of the handle assembly provided, only that the
bending radius of the cable is no less than 3 inches.
Table 1. Mechanism Selection Guide
Circuit
Breaker
Type
SE150
SF250
SG600 PB769580A SCOM1G
SK1200
Examine Table 1 below to ensure that the handle assembly,
cable, interface mechanism and breaker operating
GEPC
Rotary
Handle
PB769380A SCOM1EF SRCM1EF
PB769780A
Breaker
Operating
Mechanism
SCOM1K GEH-6291
Breaker Face
Mechanism
Installation
Instruction
GEH-6290 SC3L-SC10L
mechanism you have are correct for the job. Use Table 2 to
ensure that the cable is long enough to reach the breaker
and that the 3-inch minimum bending radius requirement
is not violated.
Installation of the handle assembly onto the enclosure door
can be performed independently from installation of the
cable-operated mechanism on to the enclosure door,
breaker-operating mechanism onto the circuit breaker and
from installation of the circuit breaker in the enclosure.
Installation of the cable between the interface mechanism
assembly and the breaker mechanism should be the final
step. The breaker operating mechanism is to be installed
onto the circuit breaker after the breaker has been mounted
in the enclosure.
Operating
Cable
Cat.No.Series
SC3H-SC10H
Handle Installation:
1
Mechanism
Cable
Operated
SRCM1G
SRCM1K
Cable Operated
Mechanism
Installation
Instruction
DEH-40467
oles as per the instructions given in GEPC rotary
Locate and orient the moving arm assembly on the base plate assembly diameter 0.25 hole as shown in the Figures
end with (driver part) moving arm assembly as shown in Figure1 and
assemble the other end of the shaft to the rotary handle. (Keep the rotary handle in off position while doing the
Position the cable operated interface mechanism below the enclosure door and locate with the drilled holes as per
24 screws (item 2 and item 8), nuts (item 3) &
that must be met are:
WARNING: Before installing any accessories, turn the breaker off, disconnect it from all voltage sources
and discharge the closing springs.
A VERTISSEMENT: Avant d’installer tout accessoire, mettre le disjoncteur en position OFF, le
d’econnecter de toute tension d’alimentation, et d’echarger les resorts d’armement.
Cable Operated Interface Mechanism installation To Enclosure Door
1. Assemble GEPC rotary handle to the enclosure door through the h
handle instruction sheet.
2.
1, Figure 4, and Figure 5.
3. Assemble the GEPC rotary handle shaft one
shaft assembly and follow the GEPC rotary handle instruction sheet for more details on shaft assembly).
4.
the Figure 3.
5. Place and locate the spacer (item1), with base plate assembly holes of ¼ inch diameter & holes in enclosure door.
6. Install the cable-operated mechanism to the enclosure door with #12washers (item 4). Tighten the screws to 30-35 in-lb.
7. Refer Table 5 for hardware details.
Figure 1. Cable Operated Interface
Mechanism Installation to Enclosure Door.
The location of the enclosure face mounted SCRM
2
mechanism/handle with respect to the circuit breaker
mounting location is NOT fixed. The only requirements
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