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

LK Nonfusible IEC Style Disconnect Switches

Pole	Rating (A)	Catalog No.	Maximum Horsepower Rating				Short Circuit Current Rating, 600 Vac		Shaft Style
Pole	Rating (A)	Catalog No.	240 V	480 V	600 V	250 Vdc	Fuse	SCCR kA	Shaft Style

3	30	LK4DU3CN	10	20	25	—	J	100	LK4AE41CN
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

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^[1]	Shaft Style	Support Bracket
	Handle			12.6 in. / 320 mm	15.7 in. / 400 mm	19.6 in. / 500 mm	Guide Cone^[1]		Support Bracket
	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.
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
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
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 ^[2]	LK4AP63N	Shroud Bottom LK4, 3-Pole, 600 A
800–1200 ^[2]	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
Pole	Rating (A)	Catalog No.	240 V	480 V	600 V	250 Vdc	Fuse	SCCR kA	Shaft Style
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	—	L	200	C

Handles and Shafts for GS Switches ^[3]

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 ^[4]
Rating (A)	Catalog No.	Type	Color	Catalog No.	Catalog No.	Catalog No.	Catalog No.	Shaft Style	Support Bracket ^[4]
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	GS2AE5	GS2AE51	GS2AE53	GS2AEH12	C	—

note

Hole adapter kit for GS1 to GS2 Handles: GS2AH100TO200.

Auxiliary Contacts for GS Switches ^[5]

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 ^[6]

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 ^[7] ^[8] ^[9]

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 ^[9]

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.

Section 8: Operating Mechanisms and Disconnect Switches

Section 8: Operating Mechanisms and Disconnect Switches

LK4 Nonfusible and GS2 Fusible Disconnect Switches

Refer to Catalog 9421CT0301

LK4 and GS2 Disconnect Switches

Building a Complete GS or LK Switch

LK4 Nonfusible Disconnect Switches

LK Nonfusible IEC Style Disconnect Switches

note

Handles and Shafts for LK Switches

note

Auxiliary Contacts for LK Switches

Terminal Shrouds for LK Switches

GS2 Fusible Disconnect Switches

GS Fusible IEC Style Disconnect Switches

Handles and Shafts for GS Switches ^[3]

note

Auxiliary Contacts for GS Switches ^[5]

Shorting Links

NFPA79 Kit

Terminal Shrouds for GS Switches, Line or Load ^[6]

Cable Operator Kits for GS2 Switches

Cable Operator Kits for GS2 Switches ^[7] ^[8] ^[9]

Handles for use with Cable Operator Kits ^[9]

Footnotes

Section 8: Operating Mechanisms and Disconnect Switches

Section 8: Operating Mechanisms and Disconnect Switches

LK4 Nonfusible and GS2 Fusible Disconnect Switches

Refer to Catalog 9421CT0301

LK4 and GS2 Disconnect Switches

Building a Complete GS or LK Switch

LK4 Nonfusible Disconnect Switches

LK Nonfusible IEC Style Disconnect Switches

note

Handles and Shafts for LK Switches

note

Auxiliary Contacts for LK Switches

Terminal Shrouds for LK Switches

GS2 Fusible Disconnect Switches

GS Fusible IEC Style Disconnect Switches

Handles and Shafts for GS Switches [3]

note

Auxiliary Contacts for GS Switches [5]

Shorting Links

NFPA79 Kit

Terminal Shrouds for GS Switches, Line or Load [6]

Cable Operator Kits for GS2 Switches

Cable Operator Kits for GS2 Switches [7] [8] [9]

Handles for use with Cable Operator Kits [9]

Footnotes

Handles and Shafts for GS Switches ^[3]

Auxiliary Contacts for GS Switches ^[5]

Terminal Shrouds for GS Switches, Line or Load ^[6]

Cable Operator Kits for GS2 Switches ^[7] ^[8] ^[9]

Handles for use with Cable Operator Kits ^[9]