Chamberlain GT Owner's Manual page 33

For replacement of electrical box, motor or brake components be sure to match model number of your unit to kit number below to
ensure proper voltage requirements.
SERVICE KITS
ITEM PART # DESCRIPTION
K1 K72-10047-1 Limit shaft kit
Complete with: Limit shaft, limit nuts,
limit bearings, limit sprocket,
interrupter cup, shim washers,
compression ring, roll pin,
and e-rings.
K2 K72-12515-1 Limit switch kit
Complete with: Limit nut retainer,
switch plates, backup plate, depress
plates, limit switches, standoffs,
screws, and locknuts.
*To order a complete electrical box kit, add a K- prefix to the
model number of your operator. For example:
GT5011L3 (Operator) = K-GT5011L3 (Electrical box kit)
*Non stocked item. Please allow additional delivery time.
E L E C T R I C A L B O X L O G I C ( V E R 3 . 0 )
INDIVIDUAL PARTS
ITEM PART #
1 13-10024
2 23-10041
3 K75-32268
4 21-14182
21-35057
21-5575
5 29-31244
6 29-31245
29-31229
7 K74-31243
8 K79-15016-1 RPM sensor assembly
9 K1A5729
10 K2A761
11 K1C3196-3
33
DESCRIPTION
Limit nut
Limit switch
Cover
Transformer, 115/230V
Transformer, 460V
Transformer, 575V
Relay 24Vdc DPST - (A and B relay)
all operators
Relay 12Vdc SPDT - (C and D relay)
3 Phase only
Relay 24Vdc SPDT - (C relay)
1 Phase only
MOV 580V
Logic board - Logic 3
Coaxial cable
Antenna