GE Industrial Solutions E150 User Manual

GEH6290

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Type SCH1/1X, SCH2/2X Flange-Mounted
Handle Assemblies, Cable Series SC3L–SC10L
and Type SC0M1A, SCOM1EF, and SCOM1G
Breaker-Mounted Operating Mechanisms

General

GE Cable Operating Mechanisms are suitable for
application with GE circuit breakers mounted in a wide
variety of flanged enclosure types and sizes.

Flange-mounted handle assemblies are available for
NEMA Type 1, 3R, 12, or 13 enclosures in either 6-inch,
Model SCH1, or 10-inch handle lengths, Model SCH2.
Corresponding assemblies, SCH1X and SCH2X, are
available for NEMA Type 4/4X enclosures. Handle
assemblies are suitable for either left or right flange
operation.

The handle 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 handle 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
is transmitted independently of the breaker mounting
plane or location relative to the location of the handle
assembly, provided only that the bending radius of the

Cable Operator Mechanisms for
E150, SE150, SF250, and SG600
Spectra RMS™ Circuit Breakers

cable is no less than 3 inches. No mounting reinforcement
of the breaker or enclosure flange is required.

The breaker operating mechanism mounts directly to the
face of the breaker and does not involve any mounting
interface with the enclosure. Standard breaker mounting
screws for tapped holes are furnished with each
mechanism to mount the breaker in the enclosure.

Examine Table 1 to ensure that the handle assembly,
cable, and breaker operating mechanism you have are
correct for the job. Check 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
flange can be performed independently from installation
of the breaker operating mechanism onto the circuit
breaker and from installation of the circuit breaker in the
enclosure. Installation of the cable between the handle
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.

Table 1. Mechanism Selection Guide

Circuit Breaker

Type NEMA 1, 3R, 12, 13 NEMA 4/4X Cat. No. Cat. No. Series Instruction

E150 SCOM1A
SE150 SCH1 SCH1X
SF250 SCH2 SCH2X
SG600 SCOM1G

SK1200 SCH2K SCH2KX SCOM1K SC3H–SC10H GEH-6291

Handle Operating Mechanism Cat. No.

Breaker Operating

Mechanism

SC0M1EF

Operating Cable

SC3L–
SC10L

Cable Operator

Mechanism

Installation

GEH-6290

Table 2. Circuit Breaker Mounting-Zone Dimensions

To determine maximum mounting dimensions for 60­inch through 120-inch-long operating cables, add the
respective additional lengths to the 48-inch cable
maximum dimensions. (For example, add 12 inches to E,
F, and G dimensions for 60-inch cable length.)

Table 3. Circuit Breaker Mounting Dimension

Breaker Type A B C D Tap Size

E150 1.38 4.88 0.72 6.31 8-32
SE150 1.38 4.88 0.72 6.51 10-32
SF250 1.38 7.75 1.19 10.12 12-24
SG600 1.81 7.75 1.19 13.62 12-24

Maximum Dimensions in Inches

Enclosure

Depth

8 13.5 4.0 15.0 25.5 16.0 27.0
10 13.0 5.0 14.8 25.0 17.0 26.8
12 12.8 6.0 14.5 24.8 17.0 26.5
16 10.5 4.5 14.2 22.5 16.5 26.2
18 8.5 3.5 12.6 20.5 15.5 24.6
20 — 0.5 10.0 22.0 15.0 24.0
24 — — — 19.5 14.0 22.0

* Maximum E dimension only if F = 4.5”.

36” Cable 48” Cable

E* F G E* F G

When cable is installed, the minimum cable bend radius
should not be less than 3 inches. The minimum cable
bending requirement must be met to ensure a safe
operating environment.

Figure 1. End view of flange and cover (right end shown).

Table 4. Handle Dimensions (see Figure 3)

NEMA 12

Handle Cat. No.

SCH1 SCH1X 6.04 2.38

SCH2, SCH2K SCH2X, SCH2KX 9.38 3.00

NEMA 4/4X

Handle Cat. No.

L

H

Figure 2. Flange details.