Page 1
NEMA 7 MODIFICATION
ADDENDUM
This addendum is to be used in conjunction with the owner’s manual included with this
operator. Refer to the manual for all mounting instructions. Refer to wiring diagram supplied with operator in lieu of owners manual. The NEMA 7 modification includes a hazardous area motor and separate wall-mounted starter with intrinsically safe control circuit.
Since the control circuit is intrinsically safe, control circuit components (limit switches,
control station) are housed in general purpose enclosure. A Dynamic Brake and Delayon-Reverse circuit is also included. For service or replacement par t requirements, use
this addendum in lieu of those included with the manual.
Page 2
ILLUSTRATED PARTS
19
EXPLOSION PROOF ENCLOSURE
GENERAL PURPOSE ENCLOSURE
(Intrinsically Safe Enclosure)
19
16
17
11
7
14
20
18
24
23
8
9
1
6
21
2
15
13
10
12
4
5
22
3
Page 3
1
2
3
4
5
6
7
8
9
10
11
12
03-8024-D
10-10013
10-1XXXX
15-48B9AXX
10-1XXXX
10-11842
10-11843
27-100
27-101
11-10021
11-11841
12-10028
TEL 24V Reversing Contactor
Depress Plate
Electrical Box
Sprocket, #48B9 3/8” Bore
Electrical Box Cover
EX.PR. Sub Panel
EX. PR. Bracket
EX. PR. Junction Box
Junction Box Cover
Limit Shaft
Post, Standoff
Flange Bearing
Below is a parts list for a standard NEMA 7 enclosure for models T, J, H, GH, GSD, SD and GT.
Optional modifications and/or accessories may add or remove certain parts from this list. Refer to owners manual for all repair part ordering information.
1
1
See Chart
1
1
1
1
1
1
1
2
2
14
5
3
REPAIR PARTS LIST – ELECTRICAL BOX AND EXPLOSION PROOF BOX
21-7115
21-7460
21-7575
10-13899
10-10115
10-13792
10-13790
10-13900
Transformer,
2-12HP,
1
φ
115/230V
Transformer,
a-:Hp,1-2Hp
230/460V 3
φ
Transformer,
1-2Hp
575V 3
φ
Electrical Box Cover
Electrical Box Cover
Electrical Box (Cube)
Electrical Box (Tabs)
Electrical Box (Tabless)
T AND SD
GT, GH AND GSD
ITEM PART NO. DESCRIPTION QTY
13
14
15
16
17
18
19
20
21
22
23
24
25
13-10024
21-XXXXX
23-10041
24-264-4
24-24-03
27-8004-D
29-17A3CO
29-448
31-10043
42-110
44-810-7
76-11850
25-XXXX
Limit Nut
Transformer
Limit Switch
Relay, Small 24VAC DPDT
Relay
Contactor Block
Safe Pack
Bridge Rectifier
Standoff, Limit Switch
10 Pos.Terminal Block
Explosion Proof Enclosure
Hub Assembly
Overload
2
See Chart
4
1
1
2
2
1
8
1
1
1
1
ITEM PART NO. DESCRIPTION QTY
ITEM PART NO. DESCRIPTION /
OPERA T OR SPECIFICATIONS
H AND J
T, SD, GSD, GT
H AND J
(Cube Style)
25-2006
6 Amp
25-2008
8 Amp
25-2010
10 Amp
25-2015
15 Amp
25-2025
25 Amp
25-4002-5D
1.6-2.5 Amp
25-4003-D
2.6-3.7 Amp
25-4004-D
2.5-4.0 Amp
25-4008-D
5.5-8.0 Amp
25-4011-5D
8.0-11.5 Amp
OVERLOADS
OPERATOR
5011
5021
5025
7511
7521
7525
1011
1021
1023
1043
1053
1025
1038
1511
1521
1523
1543
1553
1525
1538
2023
2043
2053
2038
3023
3043
3038
ITEM 8 ITEM 9
USED ON
OPERATOR
MODELS
Page 4
2003, The Chamberlain Group, Inc.
All rights Reserved
01-11859C
1/3 HORSE POWER
CIRCUIT TYPE
MODEL
3311 L or M 115 1 60 K20-1033B2X
3321 L or M 230 1 60 K20-1033B2X
3323 L or M 208/230 3 60 K20-3033B4X
3343 M 460 3 60 K20-3033B4X
3353 M 575 3 60 K20-3033M5X
3325 M 230 1 50 K20-51033BX
3338 M 380 3 50 K20-3033B4X
VOLTS PHASE HZ MOTOR KIT REQ
NEMA 7/9
Motor Kits for Models T, J, SD and H
(Std. Duty Belt Drive Style Operators)
1/2 HORSE POWER
CIRCUIT TYPE
MODEL
5011 L or M 115 1 60 K20-1050B2X
5021 L or M 230 1 60 K20-1050B2X
5023 L or M 208/230 3 60 K20-3050B4X
5043 M 460 3 60 K20-3050B4X
5053 M 575 3 60 K20-3050M5X
5025 M 230 1 50 K20-51050BX
5038 M 380 3 50 K20-3050B4X
VOLTS PHASE HZ MOTOR KIT REQ
3/4 HORSE POWER
CIRCUIT TYPE
MODEL
7511 L or M 115 1 60 K20-1075B2X
7521 L or M 230 1 60 K20-1075B2X
7523 L or M 208/230 3 60 K20-3075B4X
7543 M 460 3 60 K20-3075B4X
7553 M 575 3 60 K20-3075B5X
7525 M 230 1 50 K20-51075BX
7538 M 380 3 50 K20-3075B4X
VOLTS PHASE HZ MOTOR KIT REQ
1 HORSE POWER
CIRCUIT TYPE
MODEL
1011 L or M 115 1 60 K20-1100B2X
1021 L or M 230 1 60 K20-1100B2X
1023 L or M 208/230 3 60 K20-3100B4X
1043 M 460 3 60 K20-3100B4X
1053 M 575 3 60 K20-3100B5X
VOLTS PHASE HZ MOTOR KIT REQ
1/2 HORSE POWER
CIRCUIT TYPE
MODEL
5011 L or M 115 1 60 K20-1050C2X
5021 L or M 230 1 60 K20-1050C2X
5023 L or M 208/230 3 60 K20-3050C4X
5043 M 460 3 60 K20-3050C4X
5053 M 575 3 60 K20-3050M5X
5025 M 230 1 50 K20-51050CX
5038 M 380 3 50 K20-3050C4X
VOLTS PHASE HZ MOTOR KIT REQ
3/4 HORSE POWER
CIRCUIT TYPE
MODEL
7511 L or M 115 1 60 K20-1075C2X
7521 L or M 230 1 60 K20-1075C2X
7523 L or M 208/230 3 60 K20-3075C4X
7543 M 460 3 60 K20-3075C4X
7553 M 575 3 60 K20-3075C5X
7525 M 230 1 50 K20-51075CX
7538 M 380 3 50 K20-3075C4X
VOLTS PHASE HZ MOTOR KIT REQ
1 HORSE POWER
CIRCUIT TYPE
MODEL
1011 L or M 115 1 60 K20-1100C2X
1021 L or M 230 1 60 K20-1100C2X
1023 L or M 208/230 3 60 K20-3100C4X
1043 M 460 3 60 K20-3100C4X
1053 M 575 3 60 K20-3100C5X
1025 M 230 1 50 K20-51010CX
1038 M 380 3 50 K20-3100C4X
VOLTS PHASE HZ MOTOR KIT REQ
1-1/2 HORSE POWER
CIRCUIT TYPE
MODEL
1511 M 115 1 60 K20-1150C2X
1521 L or M 230 1 60 K20-1150C2X
1523 L or M 208/230 3 60 K20-3150C4X
1543 M 460 3 60 K20-3150C4X
1553 M 575 3 60 K20-3150C5X
1525 M 230 1 50 K20-51015CX
1538 M 380 3 50 K20-3150C4X
VOLTS PHASE HZ MOTOR KIT REQ
2 HORSE POWER (GH ONLY)
CIRCUIT TYPE
MODEL
2023 L or M 208/230 3 60 K20-3200C4X
2043 M 460 3 60 K20-3200C4X
2053 M 575 3 60 K20-3200C5X
2038 M 380 3 50 K20-3200C4X
VOLTS PHASE HZ MOTOR KIT REQ
3 HORSE POWER (GH ONLY)
CIRCUIT TYPE
MODEL
3023 M 208/230 3 60 K20-3300C4X
3043 M 460 3 60 K20-3300C4X
3038 M 380 3 50 K20-3300C4X
VOLTS PHASE HZ MOTOR KIT REQ
NEMA 7/9
Motor Kits for Models GT, GSD, and GH
(Gear Reduced Style Operators)
MOTOR REPLACEMENT KITS
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