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UL Listed Withstand and Close-On Ratings - Series 7000

Switch Rating ( Amps)

UL 1008 Withstand and Close-On Ratings at 480 Volts AC

Short Time Withstand Ratings(4)

Transfer Switches

Bypass Switches

Current - Limiting Fuse Rating

 Max. Fuse Type

Specific Breaker Rating

"Any" Breaker(3) Rating

amps

types

30

-

100,000

60

J

10,000

10,000

N/A

70, 100, 150

-

200,000

200

J

22,000

10,000

N/A

260, 400

150, 260, 400

200,000

600

J

42,000

35,000

N/A

600, 800, 1000, 1200

600, 800

200,000

1600(6)

L

65,000

65,000

36,000(5)

-

1000, 1200

200,000

2000

L

85,000

85,000

65,000

1600, 2000(7)

1600, 2000

200,000

3000

L

100,000

100,000

65,000

3000

3000

200,000

4000

L

100,000

100,000

65,000

4000

4000

200,000

6000

L

100,000

100,000

65,000
 
Notes:
  1. All values are available symmetrical RMS amperes and tested in accordance with the withstand and close-on requirements of UL 1008. See publication 1128 for more information on withstand and close-on ratings for ASCO transfer switches.
  2. Application requirements may permit higher withstand ratings for certain size switches. Contact ASCO for guidance if available short circuit current exceeds the WCR ratings shown.
  3. "Any" breaker ratings are based on 1.5 cycles for 30 -150 amp and 3 cycles for 260 - 4000 amps. Applicable to breakers with instantaneous trip elements.
  4. Short time ratings are provided for applications involving breakers that do not have instantaneous trips for systems coordination.
  5. Short time rating applicable to transfer switch design only.
  6. Maximum fuse size limited to 1200 amp for 600 and 800 amp bypass switches.
  7. Optional front connected service limited to 85,000 amps for specific and any breaker rating.
 
Ordering Codes - ASCO Series 7000
To order an ASCO Series 7000 Transfer Switch, complete the following catalog number:
7    +    A    +    TS     +     A    +     3     +    400     +     N     +      5X    +     C  
Product Type   Neutral Code* Phase Poles Amperes

Voltage Code

Options

 Group Code

Cabinet

Series 7

A

Automatic

TS

Conventional 2 Position

---

No Neutral

2

3

30

A

115

5

---

No Cabinet

70

B

120

C

Type 1 enclosure

TB

Open Transition Bypass

100

C

208

A

Solid Neutral

150

D

220

5X

Optional accessories

E

Type 2 enclosure

CTS

Closed Transition

260

E

230

N

Non-Automatic

400

F

240

F

Type 3R enclosure

CTB

Closed Transition Bypass

B

Switched Neutral

600

H

380

800

J

400

G

Type 4 enclosure

DTS

Delayed Transition

1000

K

415

C

Overlapping Neutral

1200

L

440

H

Type 4X enclosure (stainless steel)

M

Manually Operated

DTB

Delayed Transition Bypass

1600

M

460

2000

N

480

K

Type 7 enclosure

3000

P

550

4000

Q

575

L

Type 12 enclosure

R

600
Notes:
  1. Switches rated 30-150, 600-2000 amps available with 2, 3 or either conventional switched neutral (4 poles) or overlapping neutral (optional). For 4 pole applications on switches rated 260 to 400 amps and 3000 to 4000 amps specify overlapping switched neutral (optional). Conventional switch neutral is provided on delayed transition transfer products when specified.
    2.

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