LK4 Nonfusible and GS2 Fusible Disconnect Switches

Refer to Catalog 9421CT0301

LK4 and GS2 Disconnect Switches

Building a Complete GS or LK Switch

To build a complete GS or LK switch, order the following parts:

Choose a Switch

+

Shaft

+

Handle Assembly

+

Lugs if needed

           

600 A, LK4SU3N

   

Shaft 320 mm, GS2AE6

   

Black Handle, GS2AH150

   

Lugs Kit, GS1AW503

Example:

LK4SU3N (600 A non-fusible switch) + GS2AE6 (320 mm Style D shaft) + GS2AH150 (black/black, locking)

To add auxiliary contacts:

For front-mounted contacts order LK4AD30N (front-mounted auxiliary contact holder) + GS2AM110.


LK4 Nonfusible Disconnect Switches

100–400 A

30–100 A Compact

NOTE: The kit also includes rod LK4AE41CN.

note

Switches in the shaded area are now available as kits. See Kits for Compact Switches LK4: 30, 60 and 100 A.

LK Nonfusible IEC Style Disconnect Switches

Pole

Rating

(A)

Catalog No.

Maximum Horsepower Rating

Short Circuit Current Rating, 600 Vac

Shaft Style

240 V

480 V

600 V

250 Vdc

Fuse

SCCR kA

note

Switches in the shaded area are now available as kits.

3

30

LK4DU3CN [1]

10

20

30

J

100

AL

3

60

LK4GU3CN [1]

20

40

50

J

100

AL

3

100

LK4JU3CN [1]

20

50

50

N/A

J

100

AL

3

100

LK4JU3N

30

75

100

15

J

200

B

3

200

LK4MU3N

75

150

200

15

J

200

B

3

400

LK4QU3N

125

250

350

50

J

200

B

3

600

LK4SU3N

200

400

350

50

J

200

D

3

800

LK4TU3N

200

500

500

L

100

D

3

1000

LK4UU3N

200

500

500

L

100

D

3

1200

LK4WU3N

200

500

500

L

100

D

Kits for Compact Switches LK4: 30, 60 and 100 A

Rating
(A)

Kit Catalog Number

Pieces Included [2]

Compact Switch

400 mm Shaft

Handle Color /
NEMA Rating

Handle

Guide Cone

30 A

LK4DUKB1

LK4DU3CN LK4AE41CN

Black /
NEMA 1, 12, 3R

LK4AH0110CN

GS2AEH12

LK4DUKB4

LK4DU3CN LK4AE41CN

Black /
NEMA 4, 4X

LK4AH0410CN

GS2AEH12

LK4DUKR1

LK4DU3CN LK4AE41CN

Red /
NEMA 1, 12, 3R

LK4AH0120CN

GS2AEH12

LK4DUKR4

LK4DU3CN LK4AE41CN

Red /
NEMA 4, 4X

LK4AH0420CN

GS2AEH12

60 A

LK4GUKB1

LK4GU3CN LK4AE41CN

Black /
NEMA 1, 12, 3R

LK4AH0110CN

GS2AEH12

LK4GUKB4

LK4GU3CN LK4AE41CN

Black /
NEMA 4, 4X

LK4AH0410CN

GS2AEH12

LK4GUKR1

LK4GU3CN LK4AE41CN

Red /
NEMA 1, 12, 3R

LK4AH0120CN

GS2AEH12

LK4GUKR4

LK4GU3CN LK4AE41CN

Red /
NEMA 4, 4X

LK4AH0420CN

GS2AEH12

100 A

LK4JUKB1

LK4JU3CN LK4AE41CN

Black /
NEMA 1, 12, 3R

LK4AH0110CN

GS2AEH12

LK4JUKB4

LK4JU3CN LK4AE41CN

Black /
NEMA 4, 4X

LK4AH0410CN

GS2AEH12

LK4JUKR1

LK4JU3CN LK4AE41CN

Red /
NEMA 1, 12, 3R

LK4AH0120CN

GS2AEH12

LK4JUKR4

LK4JU3CN LK4AE41CN

Red /
NEMA 4, 4X

LK4AH0420CN

GS2AEH12

GS2AH130


GS2AH150


GS2AH170

note

Switches in the shaded area are now available as kits. See Kits for Compact Switches LK4: 30, 60 and 100 A.

Handles and Shafts for LK Switches

Rating

(A)

Handle

Shaft

Shaft

Guide Cone[3]

Shaft
Style

Support
Bracket

12.6 in. / 320 mm

15.7 in. / 400 mm

19.6 in. / 500 mm

Catalog No.

Type

Color

Catalog No.

Catalog No.

Catalog No.

Catalog No.

Catalog No.

note

Switches in the shaded area are now available as kits.

30–100

LK4AH110CN[1]

1, 3R, 12

Black

LK4AE12CN

GS2AEH12

AL

30–100

LK4AH1120CN[1]

1, 3R, 12

Red/Yellow

30–100

LK4AH410CN[1]

4, 4X

Black

30–100

LK4AH420CN [1]

4, 4X

Red/Yellow

100–400

GS2AH130

1, 3R, 12

Black

GS2AE2

GS2AE21

GS2AE23

GS2AEH12

B

GS2AESB

100–400

GS2AH140

1, 3R, 12

Red

100–400

GS2AH430

4, 4X

Black

100–400

GS2AH440

4, 4X

Red/Yellow

600

GS2AH150

1, 3R, 4, 4X, 12

Black

GS2AE6

GS2AE61

GS2AEH12

D

600

GS2AH160

1, 3R, 4, 4X, 12

Red/Yellow

800–1200

GS2AH170

1, 3R, 4, 4X, 12

Black

800–1200

GS2AH180

1, 3R, 4, 4X, 12

Red/Yellow

Auxiliary Contacts for LK Switches

Switch Amperes

Catalog No.

Description

30–60

MDSAN11

Auxiliary Contact 1 N.O. and 1 N.C.

30–60

MDSAN20

Auxiliary Contact 2 N.O.

100–400

LK4AD10N

Auxiliary Contact 1 N.O. and 1 N.C.

100–400

LK4AD20N

Auxiliary Contact 2 N.O.

600–1200

LK4AD30N

Auxiliary Contact Holder

600–1200

GS2AM110

Auxiliary Contact 1 N.O.

600–1200

GS2AM101

Auxiliary Contact 1 N.C.

Terminal Shrouds for LK Switches

Switch Amperes

Catalog No.

Description

30–60

LK4AP3CN

Shroud Top and Bottom, 3-Pole

100–200

LK4AP33TN

Shroud Top LK4, 3-Pole, 100/200 A

100–200

LK4AP33BN

Shroud Bottom LK4, 3-Pole, 100/200 A

400

LK4AP53TN

Shroud Top LK4, 3-Pole, 400 A

400

LK4AP53BN

Shroud Bottom LK4, 3-Pole, 400 A

600 [4]

LK4AP63N

Shroud Bottom LK4, 3-Pole, 600 A

800–1200 [4]

LK4AP83N

Shroud Bottom LK4, 3-Pole, 800–1200 A

GS2 Fusible Disconnect Switches

GS2GU3N

GS2AH110

GS2AH130

GS2AH150

Auxiliary Contacts

GS1AD10 + GS2AM110

Shorting Links

GS Fusible IEC Style Disconnect Switches

Pole

Rating

(A)

Catalog No.

Maximum Horsepower Rating

Short Circuit Current Rating, 600 Vac

Shaft Style

240 V

480 V

600 V

250 Vdc

Fuse

SCCR kA

3

30

GS1DDU3

7.5

15

20

5

CC

100

AG

3

30

GS1DU3

7.5

15

20

5

J

100

AG

3

30

GS2EEU3

7.5

15

20

5

CC

100

B

3

30

GS2EU3N

7.5

15

20

5

J

100

B

3

60

GS2GU3N

15

30

50

10

J

100

B

3

100

GS2JU3N

30

60

75

20

J

200

B

3

200

GS2MU3N

60

125

150

40

J

200

B

3

400

GS2QU3N

125

250

350

50

J

200

B

3

600

GS2SU3

200

500

500

J

200

C

3

800

GS2TU3

200

500

500

J

200

C

Handles and Shafts for GS Switches [5]

Rating

(A)

Handle

Shaft:
12.6 in. (320 mm)

Shaft:
15.7 in. (400 mm)

Shaft:
19.7 in. (500 mm)

Shaft Guide

Shaft Style

Support Bracket [6]

Catalog No.

Type

Color

Catalog No.

Catalog No.

Catalog No.

Catalog No.

30–60

GS2AH110

1, 3R, 12

Black

GS2AE8

GS2AE81

GS2AEH12

AG

30–60

GS2AH120

1, 3R, 12

Red/Yellow

30–60

GS2AH410

4, 4X

Black

30–60

GS2AH420

4, 4X

Red/Yellow

30–400

GS2AH130

1, 3R, 12

Black

GS2AE2

GS2AE21

GS2AE23

GS2AEH12

B

GS2AESB

30–400

GS2AH140

1, 3R, 12

Red/Yellow

30–400

GS2AH430

4, 4X

Black

30–400

GS2AH440

4, 4X

Red/Yellow

600–800

GS2AH150

1, 3R, 4, 4X, 12

Black

GS2AE5

GS2AE51

GS2AE53

GS2AEH12

C

600–800

GS2AH160

1, 3R, 4, 4X, 12

Red/Yellow

note

Hole adapter kit for GS1 to GS2 Handles: GS2AH100TO200.

Auxiliary Contacts for GS Switches [7]

Switch Amperes

Catalog No.

Description

30–800

GS1AM110

Auxiliary Contact, 1 N.O.

30–800

GS1AM101

Auxiliary Contact, 1 N.C.

30

GS1AD10

Auxiliary Contact Holder

Shorting Links

For use on:

Shorting Links per Kit

Catalog No.

GS2, 60 A

3

GS1AU203

GS2, 100 A

3

GS1AU303

GS2, 200 A

3

GS1AU403

GS2, 400 A

3

GS1AU503

GS2, 600–800 A

3

GS1AU803

NFPA79 Kit

For Use With: Description Kit Part Number
GS2Q3N NFPA 79 Internal Handle Kit 400 A Switch Shaft

GS2AD040N

GS2GU3N, GS2GLU3N, GS2JU3N, GS2JLU3N NFPA 79 Internal Handle Kit 60–200 A Switch Shaft

GS2AD030N

GS1DDU3, GS1DU3 NFPA 79 Internal Handle Kit for 5 mm Shafts

GS1AD010

Terminal Shrouds for GS Switches, Line or Load [8]

Switch Amperes

Catalog No.

Description

30–100

Standard on product

200

GS2AP43

GS2, 3-Pole, 200 A

400

GS2AP53

GS2, 3-Pole, 400 A

600–800

GS2AP73

GS2, 3-Pole, 600–800 A

Cable Operator Kits for GS2 Switches

Flange Handle

Cable Operator Kit

Cable Operator Kits for GS2 Switches [9] [10]

Catalog No. Description

200 A and Below

GS2AH36F

36 in. Cable Operator Kits for GS2 Switches, 200 A and Below

GS2AH60F

60 in. Cable Operator Kits for GS2 Switches, 200 A and Below

GS2AH120F

120 in. Cable Operator Kits for GS2 Switches, 200 A and Below

GS2AH144F

144 in. Cable Operator Kits for GS2 Switches, 200 A and Below

GS2AH180F

180 in. Cable Operator Kits for GS2 Switches, 200 A and Below

400 A

GS2AH460F

60 in. Cable Operator Kits for GS2 Switches, 400 A

GS2AH4120F

120 in. Cable Operator Kits for GS2 Switches, 400 A

GS2AH4144F

144 in. Cable Operator Kits for GS2 Switches, 400 A

GS2AH4180F

180 in. Cable Operator Kits for GS2 Switches, 400 A

Handles for use with Cable Operator Kits

Catalog No. NEMA Type Enclosure Type of Handle

9422A1

1, 3, 3R, 4, (Sheet Steel) 6 in.

9422A2

4, 4X (Stainless) 6 in.

9422A3

1, 3, 3R, 4, (Sheet Steel) 4 in.

9422A4

4, 4X (Stainless) 4 in.

Footnotes

  1. No longer sold as components. Purchase Kits containing Switch, Handle, Shaft, and Guide Cone as listed in Kits for Compact Switches LK4: 30, 60 and 100 A.
  2. Components are NOT sold separately. Only 400 mm shaft can be purchase separately.
  3. Optional on shafts for LK4DU3CN, LK4GU3CN and LK4JU3CN.
  4. 600–1200 A standard with top shroud.
  5. GS2AH100TO200–GS1 to GS2 Handle Adapter if using GS1 holes.
  6. Not for use with flange disconnects.
  7. GS1DU3 and GS1DDU3 switches allow up to 4 auxiliary contacts without adding contact holder GS1AD10. For more than 4 contacts, GS1AD10 is required.
  8. Order one terminal shroud per side. For example, order one terminal shroud for either the line side or load side; order two terminal shrouds for both the line side and load side.
  9. Does not include handle. For handle, see Handles for use with Cable Operator Kits Not compatible with GS2EEU3...
  10. Not compatible with GS2EEU3..

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