QMB/QMJ Fusible Panelboards Switch Units

Refer to Catalog 4620CT9601

For QMB/QMJ Panelboards and Switchboards

QMB Branch Switch Units

Unit

Ampere

Rating

Unit

Height

(In.)

Catalog

Number

Class R Fuse Kits

Electrical Interlock Kit

Horsepower Ratings [1]

No.

Kits

Req’d.

Catalog

Number

Catalog

Number  [2]

240 Vac

480 Vac

600 Vac

250 Vdc

Std.

Max.

Std.

Max.

Std.

Max.

2-pole, 240 Vac, 250 Vdc

30 A-30 A

4.5

QMB221TW

2

HRK30

QMB300EK (1 or 2)

1.5

3

3

7.5

5

 30 A-Blank

QMB221HW [3]

1

5

60 A-60 A

QMB222TW

QMB36R

QMB300EK (1 or 2)

3

7.5

10

15

10

 60 A-Blank

QMB222HW [3]

10

100 A-100 A

6

QMB223TW

QMB100R

QMB610EK (1 or 2)

7.5

15

15

30

20

100 A-Blank

QMB223HW [3]

200 A

9

QMB224W

HRK1020

QMB200EK (1 or 2)

25

15

60

40

400 A

15

QMB225W

QMB4060R

9

QMB225WT3 [4]

600 A

Use 3-pole devices for 2-pole application.

3-pole, 240 Vac

30 A-30 A

4.5

QMB321TW

2

HRK30

QMB300EK (1 or 2)

3

7.5

 30 A-Blank

QMB321HW [3]

1

60 A-60 A

QMB322TW

QMB36R

7.5

15

 60 A-Blank

QMB322HW [3]

100 A-100 A

6

QMB323TW

QMB100R

QMB610EK (1 or 2)

15

30

100 A-Blank

QMB323HW [3]

200 A

9

QMB324W

HRK1020

QMB200EK (1 or 2)

25

60

400 A

15

QMB325W

QMB4060R

50

125

9

QMB325WT3  [4]

600 A

15

QMB326W

1

QMB4060R

75

150

QMB326WT3  [4]

800 A

QMB327WT3 [4]

2-pole, 600 Vac, 250 Vdc[5]

30 A-30 A

 4.5

QMB261TW

1

QMB36R

QMB300EK (1 or 2)

1.5

3

3

5

7.5

15

3

10

 5

 30 A-Blank

QMB261HW [3]

60 A-60 A

QMB262TW

QMB60R

QMB610EK (1 or 2)

3

10

5

15

20

30

10

25

10

 60 A-Blank

QMB262HW [3]

100 A-100 A

6

QMB263TW

2

HRK1020

7.5

15

10

25

30

60

15

40

20

100 A-Blank

QMB263HW [3]

1

200 A

 9

QMB264W

HRK1020

QMB200EK (1 or 2)

15

25

50

50

125

30

50

40

400 A

Use 3-pole devices
for 2-pole application.

600 A 

3-pole, 600 Vac, 250 Vdc[5]

30 A-30 A

4.5

QMB361TW

1

QMB36R

QMB300EK (1 or 2)

3

7.5

5

15

7.5

20

QMJ361T

20

5

 30 A-Blank

QMB361HW [3]

1

QMB36R

3

7.5

5

15

7.5

20

60 A-60 A

6

QMB362TW

QMB60R

QMB610EK (1 or 2)

7.5

15

15

30

15

50

QMJ362T

10

 60 A-Blank

QMB362HW [3]

1

QMB60R

7.5

15

15

30

15

50

60 A-30 A

QMB362T21W

QMB60R and QMB36R

100 A-100 A

7.5

QMB363TW

2

HRK1020

15

30

25

60

30

75

6

QMJ363T

20

100 A-Blank

7.5

QMB363HW [3]

1

HRK1020

15

30

25

60

30

75

6

QMJ363H [3]

20

100 A-30 A

7.5

QMB363T31W

1

QMB36R

100 A-60 A

QMB363T32W

QMB60R

200 A

9

QMB364W

1

HRK1020

QMB200EK (1 or 2)

25

60

50

125

60

150

200 A-200 A

7.5

QMJ364T

QMB610EK (1 or 2)

25

60

50

125

60

150

40

200 A-Blank

QMJ364H [3]

400 A[6]

15

QMB365W

1

QMB4060R

100

250

125

350

50

400 A

9

QMJ365

QMB200EK (1 or 2)

50

125

100

250

125

350

50

400 A[6]

QMB365WT6 [7]

600 A [6]

15

QMB366W

1

QMB4060R

150

400

250

500

600 A 

QMJ366

75

150

800 A

QMB367W

150

400

250

500

note

See the Supplemental Digest for merchandised motor starter units, QMB RTI panelboards, and replacement switches for Series 1–4 and D2 QMB panelboards.

note

For series E1 and E2, QMJ switches may be used in 400 A–1200 A interiors in a NEMA 1 without door only. QMJ switches cannot be used in series E1 and E2, 225 A panelboards. QMJ switches cannot be used in NEMA 1 with door or any NEMA 3R/12 enclosure.

Fusible—600 Vac, 250 Vdc

Available QMB Accessories

Electrical Interlocks

1 NO and 1NC Electrical Interlocks on Main Switches
2NO and 2NC Electrical Interlocks on Main Switchs

Equipment Ground Bars

Standard Ground Bar
Copper Ground Bar
Insulated/Isolated Ground Bar

Name Plates

Copper Neutral

Copper Neutral
125-400A
600A
800A

Enclsoure Modifications

Hinged Trim
Weatherproof - NEMA 3R

Lugs

Mechanical Lugs - Standard
Copper Mechanical Lugs
Copper Compression Lugs
Aluminum Compression Lugs
VCEL Lugs

UL Listed Short Circuit Ratings for QMB Starters

Starter Size

Fusible switch-600V Max.
(with Class R or J Fuses) RMS Sym. Amps

Thermal-Magnetic Bircuit Breaker 600V Max.
Rms Sym. Amps

0 100,000 5,000
1 100,000 5,000
2 100,000 5,000
3 100,000 5,000

Common Features

QMB Layout Information

To maximize the quantity of branch switches, use QMJ switches from QMB/QMJ Panelboards and Switchboards. Class J fuses are available in time delay construction suitable for motor and transformer loads.

I-Line Panelboard Split Bus Bars

Ampacity
MLO

Additional Mounting Height
Required On Split Bus Section [8]

Split Bus

 225 A

 7.5 in.

 400 A

 9 in.

 600 A

12 in.

 800 A

12 in.

1200 A

18 in.

note

For applications with main circuit breaker panelboards, contact your local Schneider Electric representative or distributor.

Footnotes

  1. Horsepower rating applicable to 480Y/277 V system only.
  2. “1’’ indicates one normally open and one normally closed contact.
    “2’’ indicates two normally open and two normally closed contacts.
  3. Blank units cannot be modified to accept a switch interior.
  4. Use 300 Vac Class T fuses only.
  5. Class J fuse provisions—to field modify switch, move load side fuse base to position indicated in switch. Not available on 100-30, 100-60, or 800 A switch units.
  6. 250 Vdc rating.
  7. Use 600 Vac Class T fuses only.
  8. For I-Line panelboards, dimension includes height of “SL” sub-feed lug kit from Digest, plus 3 in. from available branch mounting space.

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