80439-666-01B
06/2006
Seneca, SC USA
Instruction Bulletin
ENGLISH
Replaces 80439-666-01A, 08/1998
Disconnect Assembly Replacement
F- and K-Frame Circuit Breakers or 100 A and 200 A Disconnect Switches in
Model 6 Motor Control Centers (MCCs)
Class 8998
Retain for future use.
INTRODUCTION
This bulletin provides instructions for replacing an MCC disconnect assembly.
These instructions are applicable only to disconnect assemblies in Model 6
MCCs that contain:
•
•
•
•
-
F- and K-Frame Thermal-Magnetic Circuit Breakers (15–250 A),
F- and K-Frame Molded Case Switches (100–250 A),
F- and K-Frame Mag-Gard® Motor Circuit Protectors (3–250 A), and
100 A and 200 A Disconnect Switches used in fusible units.
Figure 1:
REPLACEMENT DISCONNECT
ASSEMBLIES FOR MODEL 6 MCCs
Disconnect Assembly
Schneider Electric recommends replacing the entire disconnect assembly
for F- and K-Frame circuit breakers and 100/200 A disconnect switches
instead of replacing the circuit breaker or disconnect switch. The disconnect
assembly includes the operating mechanism and the appropriate circuit
breaker or switch. Replacing the entire assembly requires only the removal
of three screws (two from the left side of the assembly and one inside the
back of the assembly). This procedure is much simpler and quicker than
replacing an individual circuit breaker or disconnect switch.
Always use replacement devices of the same type and rating as the device
being removed. Using a different type of disconnect or one with a different
rating may alter the short-circuit ratings of the motor control center.
1
Disconnect Assembly Replacement
Replacement Disconnect Assemblies for Model 6 MCCs
80439-666-01B
06/2006
Refer to the following tables for a listing of replacement assemblies.
ENGLISH
NEMA/EEMAC SIZE 1–4 combination starters with Mag-Gard magnetic only circuit breakers
NEMA/EEMAC Size 5 combination starters with KA-Frame (250 A maximum) Mag-Gard magnetic only circuit breakers
To replace this circuit breaker: Order this disconnect assembly: To replace this circuit breaker: Order this disconnect assembly:
FAP3600311M
FAP3600712M
FAP3601513M
FAP3603015M
FAP3605016M
M6DSAMG003M11
M6DSAMG007M12
M6DSAMG015M13
M6DSAMG030M15
M6DSAMG050M16
FAP3610018M
KAP3625025M
KAP3625029M
KAP3625031M
M6DSAMG100M18
M6DSAMG250M25
M6DSAMG250M29
M6DSAMG250M31
NEMA/EEMAC Size 1–4 combination starters with thermal-magnetic circuit breakers
NEMA/EEMAC Size 5 combination starters with KA-Frame (250 A maximum) thermal-magnetic circuit breakers, main and branch feeder circuit breakers through 250 A
For dual-mounted circuit breaker units, contact your Schneider Electric field sales representative. Not applicable to Compact® 6 units.
To replace this circuit breaker: Order this disconnect assembly: To replace this circuit breaker: Order this disconnect assembly:
FAP36015
FAP36015
FAP36020
FAP36020
FAP36025
FAP36030
FAP36030
FAP36040
FAP36040
FAP36050
FAP36050
FAP36060
FAP36060
M6DSATM015M
M6DSATM015M
M6DSATM020M
M6DSATM020M
M6DSATM025M
M6DSATM030M
M6DSATM030M
M6DSATM040M
M6DSATM040M
M6DSATM050M
M6DSATM050M
M6DSATM060M
M6DSATM060M
FAP36070
FAP36080
FAP36080
FAP36090
FAP36090
FAP36100
FAP36100
KAP36110
KAP36125
KAP36150
KAP36175
KAP36200
KAP36225
KAP36250
M6DSATM070M
M6DSATM080M
M6DSATM080M
M6DSATM090M
M6DSATM090M
M6DSATM100M
M6DSATM100M
M6DSATM110M
M6DSATM125M
M6DSATM150M
M6DSATM175M
M6DSATM200M
M6DSATM225M
M6DSATM250M
NEMA/EEMAC Size 1–4 combination starters with disconnect switches
To replace this
disconnect switch:
Order this disconnect assembly:
To replace this
disconnect switch:
Order this disconnect assembly:
30 A
60 A
M6DSAFS030M ➀
M6DSAFS060M ➀
100 A
200 A
M6DSAFS100M ➁
M6DSAFS200M ➁
To replace this
disconnect switch:
Order this disconnect assembly:
100 A
200 A
M6DSAFS100M ➁
M6DSAAS250M ➁
Main and branch feeder disconnect switches through 200 A
To replace this
disconnect switch:
Order this disconnect assembly:
30 A
30 A
60 A
60 A
M6DSAFS030M ➀
M6DSAFS030M ➀
M6DSAFS060M ➀
M6DSAFS060M ➀
➀ Voltage form must be added:
U212: 0-250V, Class H
Y712: 0-250V, Class R
U213: 600V
➁ Does not include fuse clips. Refer to “Modifications” on page 3.
Replacement of the operating mechanism is not required for NEMA/EEMAC
Size 5 combination starters with:
•
•
•
•
•
2
LA frame (400 A max.) circuit breakers
NEMA/EEMAC Size 5 combination fusible starters
NEMA/EEMAC Size 6 combination starters
Main and branch circuit breakers over 250 A
Main and branch feeder disconnect switches over 200 A
© 1998–2006 Schneider Electric All Rights Reserved
Modifications
Disconnect Assembly Replacement
Replacing the Disconnect Assembly
Order a replacement circuit breaker or automatic molded case switch of the
same type as the original device. To order an FH/KH type high-interrupting
circuit breaker instead of the standard FA/KA type circuit breaker, add form
Y532 to the disconnect assembly number.
Example: To replace an FHP36100, order an M6DSATM100M Y532.
These modifications also may be added to disconnect assemblies when
required:
Y74
Y301
Y303
Y312
Y532
U341
REPLACING THE DISCONNECT
ASSEMBLY
Single pole interlock on operating mechanism
Current limiting module (for starter units Size 1–3)
Current limiting module (for 15–100 A branch feeders)
Class R fuse clips
High interrupting circuit breaker
Extra high interrupting circuit breaker
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
• Apply appropriate personal protective equipment (PPE) and follow safe
electrical work practices. See NFPA 70E.
• This equipment must be installed and serviced only by qualified
electrical personnel.
• Turn off all power supplying this equipment before working on or
inside equipment.
• Always use a properly rated voltage sensing device to confirm that
power is off.
• Replace all devices, doors, and covers before turning on power to
this equipment.
Failure to follow these instructions will result in death or serious injury.
To replace the disconnect assembly, follow these steps:
1. Turn off all power supplying the equipment, and follow lockout/tagout
procedures before working on or inside equipment. Always use a
properly rated voltage sensing device to confirm the power is off.
2. Remove the unit containing the disconnect assembly from the MCC. For
instructions on removing the unit, refer to the Model 6 instruction bulletin
(no. 80459-641-01_) that was shipped with the MCC.
3. Once the unit has been removed, disconnect the load side power wiring
from the circuit breaker or disconnect switch.
© 1998–2006 Schneider Electric All Rights Reserved
3
ENGLISH
80439-666-01B
06/2006
Disconnect Assembly Replacement
Replacing the Disconnect Assembly
80439-666-01B
06/2006
4. Remove and retain the two 10-32 x 1/2 in. screws from the unit bottom
plate, and tilt the unit bottom plate down (Figure 2).
ENGLISH
5. Remove and retain the three 12-24 x 1/2 in. mounting screws used to
mount the disconnect assembly to the unit saddle and the 10-32 x 3/8 in.
screw used to mount the disconnect assembly to the unit support angle
(if applicable). See Figure 2 for the location of this mounting hardware.
Next, remove the disconnect assembly from the unit.
Figure 2:
Location of Mounting Hardware and 12-24 Mounting Screws
Unit support angle
12-24 mounting screws
10-32 mounting screw
12-24
mounting
screw
Unit bottom plate
Unit bottom plate
10-32 x 1/2 in. flat head screws
Mounting Hardware
12–24 Mounting Screws
6. Locate and mount the bracket on the disconnect in the same position as
the original assembly using the two 10-32 x 3/8 in. screws provided. For
the correct mounting position, refer to the original disconnect assembly
and Figure 3 below and Figure 4 on page 5. For assemblies
manufactured before August 1998, see Figure 3. For assemblies
manufactured after August 1998, see Figure 4.
Figure 3:
Mounting Bracket Location for Assemblies Manufactured before August 1998
Mounting
bracket
Mounting
bracket
Original Assembly
4
Replacement Assembly
© 1998–2006 Schneider Electric All Rights Reserved
80439-666-01B
06/2006
Mounting Bracket Location for Assemblies Manufactured after August 1998
ENGLISH
Figure 4:
Disconnect Assembly Replacement
Replacing the Disconnect Assembly
Mounting
bracket
Mounting
bracket
Replacement Assembly
Original Assembly
7. Mount the bracket on the new disconnect assembly using the two
10-32 x 3/8 in. screws provided. See Figures 5 and 6 for the correct
mounting relationship between the bracket and disconnect assembly.
Figure 5:
Mounting the Bracket on the New
Disconnect Assembly
Figure 6:
Detail A
Mounting bracket
See Detail A
10-32
hardware
part number
21427-17121
10-32 x 3/8 in. hardware
part number 21427-17121
© 1998–2006 Schneider Electric All Rights Reserved
5
Disconnect Assembly Replacement
Replacing the Disconnect Assembly
80439-666-01B
06/2006
8. Place the new disconnect assembly in the unit saddle, and mount it
using the three 12-24 x 1/2 in. screws (Figure 7).
ENGLISH
Figure 7:
Mounting the Replacement
Assembly
12-24 x 1/2 in.
screws
9. Reconnect the load side power wiring to the circuit breaker or
disconnect switch. Torque all connections according to the
specifications provided on the circuit breaker or disconnect switch.
10. Return the unit bottom plate to its original position, and replace the two
10-32 x 1/2 in. screws from step 4 in the unit bottom plate (Figure 8).
Figure 8:
Replacing the Flat-Head Screws in the Unit Bottom Plate
10-32 x 1/2 in. screws
11. Reinstall the unit in the MCC, and replace any doors or barriers before
re-energizing the equipment. Refer to the Model 6 instruction bulletin
(no. 80459-641-01_) for instructions regarding reinstalling the MCC unit.
Schneider Electric USA
1990 Sandifer Blvd.
Seneca, SC 29678 USA
1-888-SquareD (1-888-778-2733)
www.us.SquareD.com
Electrical equipment should be installed, operated, serviced, and maintained only by
qualified personnel. No responsibility is assumed by Schneider Electric for any
consequences arising out of the use of this material.
© 1998–2006 Schneider Electric All Rights Reserved