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Wiring Tips  3 and 4 Wire - Do you need 2 or 3 or 4 poles?

Single Phase Switch: 2 poles 3 wire - The switch is single phase 3 wire, with the 3rd wire being a solid neutral.

Three Phase Switches:

3 poles 3 wire - The switch is three phase 3 wire, with no neutral.

3 poles 4 wire - The switch is three phase 4 wire, with a solid neutral.

4 poles 4 wire - The switch is three phase 4 wire, with either a switched neutral or overlapping neutral.

 
Ordering Codes - ASCO Series 185
To order an ASCO Series 185 Transfer Switch, use the catalog number as shown below. 
Factory Brochure   -   Product Details & Prices   -   Transfer Switch Finder Utility with Prices
Automatic Manual
Catalog Number
Enclosure
Ampere
 Catalog NumberEnclosureAmpere
D00185A20100F30C
Type 1 Indoor
100
 D00185A20100000CType 1 Indoor100
D00185A20200F30C
Type 1 Indoor
200
 D00185A20200000CType 1 Indoor200
D00185A20230F30C
Type 1 Indoor
230
 D00185A20230000CType 1 Indoor230
D00185A20100F30F
Type 3R Outdoor
100
 D00185A20100000FType 3R Outdoor100
D00185A20200F30F
Type 3R Outdoor
200
 D00185A20200000FType 3R Outdoor200
D00185A20230F30F
Type 3R Outdoor
230
 D00185A20230000FType 3R Outdoor230
 

Ordering Codes - ASCO Series 300 Automatic (ATS) and Manual (NTS)

 The new ASCO 300 Series is shipping. The 386 (Manual Switches) are now combined with 300 Series. Designated as ATS and NTS, The 300 Series now has Delayed Transition added as an optional type.

To order an ASCO Series 300 Transfer Switch, complete the catalog number as shown below.

Factory Brochure   -   Product Details & Prices 300 Series   -   Transfer Switch Finder Utility with Prices

3   +   A    +   TS    +    A    +    3     +     600     +     N     +     1     +     X     +      C    +     5    +   480 V 60 Hz

Product

Type

Neutral Code
Phase Poles
Amperes
Continuous Rating
Voltage Code
Controller
Options
Enclosure
Optional Accessories
Specific Volt & Freq
3A

TS

A3600N1X
C
5480 V 60 Hz

300
 

 
 
AAutomaticTS  Conventional

   2 Position

A or
Blank

Solid Neutral 2

2 poles,
1
1 phase

 

TS Type

30, 70, 104, 150,
2004, 2304, 260,
400,
600, 800, 1000,
1200, 1600, 2000,
2600, 30005

 Code Voltage

 

 

1

 

Insert "X"
If optional
accessories
are required

CType 1
Standard Enclosure

5
No Accessories

 

Volt & Freq

This information
is necessary to allow
correct control
settings prior
to shipment.

A
1153
B
120
11BG
Programmable  Engine Exerciser

C
208
F
Type 3R Enclosure
D
220
G
Type 4 Enclosure2
14AA/14BA
Auxiliary Contacts
(2 Sets max)
NNon-AutomaticDTSDelayed TransitionB1 Switched Neutral33 poles,
3
3 phase
E
230
F
240
H380
L
Type 12 Enclosure3 
44A, 44G
Strip Heater with
Thermostat

 

 DTS Type

150,
2004, 2304, 260,
400, 600, 800, 1000,
1200, 1600, 2000,
2600, 30005

J
400
K
415
L
440
MType 3R
Secure
Enclosure
72A
Serial Interface Module
M
460
N480Blank or OOpen Type72E
Connectivity Module
Q
575
R
600

73A
Surge Suppressor

Note: 1. Specify neutral code "C" for 260 and 400 amperes only.   2 Available 30-1000 and 1600 amps. Use Type 3R for 1200, 2000, 2600 and 3000 amp applications.    3. 115-120 volt available 30-400 amps only. For other voltages contact ASCO. Consult ASCO for special ordering when a CSA label is required.   4. 200 and 230 amp rated switches for use with copper cable only.  5. Secure type provided as standard for 2600-3000 amp.
 

Ordering Codes - ASCO Series 300SE

 The new ASCO 300 SE Series is shipping. The 386 (Manual Switches) are now combined with 300 SE Series. Designated as ATS and NTS, The 300 SE Series now has Delayed Transition added as an optional type.

To order an ASCO Series 300 SE (Service Entrance) Transfer Switch, complete the catalog number as shown below.

Factory Brochure   -   Product Details & Prices   -   Transfer Switch Finder Utility with Prices

3   +   A    +   US   +    A    +    3    +     600     +     N     +     1     +     X     +      C    +     5    +   480 V 60 Hz

Product

Type

Neutral Code
Phase Poles
Amperes
Continuous Rating
Voltage Code
Controller
Options
Enclosure
Optional Accessories
Specific Volt & Freq
3A

US

A3600N1X
C
5480 V 60 Hz

300
 

 
 
AAutomaticUS  Standard Transition
A or
Blank
Solid Neutral 2

2 poles,
1
1 phase

 

US Type

70, 104, 150,
2004, 2304, 260,
400,
600, 800, 1000,
1200, 1600, 2000,
2600, 30005

 Code Voltage
 

 

1

 

Insert "X"
If optional
accessories
are required

CType 1
Standard Enclosure

5
No Accessories

 

Volt & Freq

This information
is necessary to allow
correct control
settings prior
to shipment.

A
1153
B
120
11BG
Programmable  Engine Exerciser

C
208
F
Type 3R Enclosure
D
220
G
Type 4 Enclosure2
14AA/14BA
Auxiliary Contacts
(2 Sets max)
NNon-AutomaticDUSDelayed TransitionB1 Switched Neutral33 poles,
3
3 phase
E
230
F
240
H380
L
Type 12 Enclosure3 
44A, 44G
Strip Heater with
Thermostat

 

 DUS Type

150, 2004, 2304, 260,
400, 600, 800, 1000,
1200, 1600, 2000,
2600, 30005

J
400
K
415
L
440
MType 3R
Secure
Enclosure
72A
Serial Interface Module
M
460
N480Blank or OOpen Type72E
Connectivity Module
Q
575
R
600

73A
Surge Suppressor

Notes: 1. Specify neutral code "C" for 225, 250 and 400 amperes only.    2. Available 70-1000 ampacity. Use Type 3R for 1200-3000 amp applications.   3. 115-120 volt available 150-400 amps only.   4. A solid neutral is standard on 3AUS.  5. For switch sized 70-225 amperes only.  6. 200, 225 amperes rated switch suitable for use with copper cable only.
 

Ordering Codes - ASCO Series 4000

To order an ASCO Series 4000 Transfer Switch, complete the catalog number as shown below.

Factory Brochure   -   Product Details & Prices   -   Transfer Switch Finder Utility with Prices

4    +    A    +    TS    +    A    +    3     +     600     +     N     +     5     +     C

Product

Type

Neutral Code (1)

Phase Poles

Amperes
Continuous Rating

Voltage Code

Optional Accessories

Cabinet

4A

TS

A3600N5C
 

4000

 

A

Automatic

TS

Conventional 2 position

Blank

No Neutral

2

2 poles,
1
1 phase
TS Type

30, 70, 104, 150,
2004, 2304, 260,
400,
600, 800, 1000,
1200, 1600, 2000,
2600, 3000, 4000

A4

115

 

5
No Accessories  

 

O
or Blank

Open Type

B4

120

C
Type 1
Standard Enclosure

N

Non-Automatic

CTClosed TransitionA
 
Solid Neutral

3

3 poles,
3
3 phase

C

208

5X
Optional Accessories

FType 3R Enclosure

D

220

G

Type 4
Enclosure3

E

230

 DTDelayed Transition

B1
 

Switched Neutral 

F

240

 

LType 12 Enclosure3

H

380

M

Type 3R

Secure Double Door

 CTS & DTS Type

150, 2004, 2304, 260,
400, 600, 800, 1000,
1200, 1600, 2000,
2600, 3000, 4000

 

J

400

K

415

NType 4

Secure Double Door

L

440

P

Type 4X

Secure Double Door

 

M

460

N

480

Q

575

Q
Type 12

Secure Double Door

R

600

Notes:  1 200 and 230 amp switch limited to 480 volts maximum. 2 Switches rated 30-3000 amps available with 2, 3 or conventional switched neutral (B).  For 4 pole applications on switches rated 4000 amps specify neutral code (C).
 
Ordering Codes - ASCO Series 7000
To order an ASCO Series 7000 Transfer Switch, complete the catalog number as shown.
Factory Brochure   -   Product Details & Prices   -   Transfer Switch Finder Utility with Prices
7    +    A    +    TS     +     A    +     3     +    600     +     N     +      5    +     C  
ProductTypeNeutral CodePhase Poles1Amperes

Voltage Code

Optional Accessories

Cabinet

7ATSA3600N5C

 

 

7000

Series

A
Automatic
TS
Conventional
2 Position
Blank
No Neutral

2

 

2 poles,
1
1 phase

 

TS Type

30, 70, 100,
150, 2002, 2302, 260,
400,
600, 800, 1000,
1200, 1600, 2000,
2600, 3000, 4000

 Code Voltage

5
No Accessories  

O
or Blank
No Cabinet
A
115
B
120
CType 1
Standard
Enclosure
TB
Open
Transition
Bypass
C
208
A
Solid Neutral
D
220
EType 2
Enclosure
CTS
Closed
Transition
33 poles,
3
3 phase
E
230

5X
Optional
Accessories

FType 3R
Enclosure
N
Non-Automatic
F
240
GType 4
Enclosure
CTB
Closed
Transition
Bypass
B
Switched Neutral
H
380
J
400
HType 12
Enclosure
DTS
Delayed
Transition
 

 

All Other Types


150, 2002, 2302, 260,
400, 600, 800, 1000,
1200, 1600, 2000,
2600, 3000, 4000

 

K
415
 
C
Overlapping
Neutral
L
440
KType 7
Enclosure
M
Manually Operated
DTB
Delayed
Transition
Bypass
M
460
N
480
LType 12
MType 3R

Secure
Double Door
      
P
550
NType 4

Secure
Double Door
Q
575
P
Type 4X

Secure
Double Door
R600Q
Type 12

Secure
Double Door
  
Notes: 1 For 4 pole applications on switches rated 260 to 400 amps (Bypass configurations only) and 4000 amps ,specify overlapping switched neutral (optional). Conventional switch neutral is provided on delayed transition transfer products when specified. 2 200 and 230 amp switch limited to 480 volts maximum.
 
Ordering Codes - ASCO Series 7000 Soft Load
To order an ASCO Series 7000 Soft Load Transfer Switch, complete the catalog number as shown.
Factory Brochure   -   Product Details & Prices   -   Transfer Switch Finder Utility with Prices
7     +     A     +     SLS      +      A    +     3      +     600      +      N      +       5    +      C  
Product Neutral Code*Phase PolesAmperes

Voltage Code

Options

Cabinet

7ASLSA3600N5C
 

7000

Series

 

A

 

Automatic

SLSSoft Load
Closed-Transition
---No
Neutral

3

3 poles,
3
3 phase
 

150, 260,
400,
600, 800, 1000,
1200, 1600, 2000,
3000, 4000

 Code Voltage

 

5
No Accessories

 

CType 1
Standard
Enclosure
C208
SLBSoft Load
with Bypass-Isolation
ASolid
Neutral
D2205X
Optional
Accessories
HType 3R
Secure enclosure
  CSwitched
Neutral
  E230  
  F240 
L440
M460
N480
P550
Q575
R600
Notes:  *Switches rated 150-3000 amps available with either conventional switched neutral (4 poles) or overlapping neutral (optional). For 4 pole applications on switches rated 4000 amps, specify overlapping switched neutral (optional).
 
Ordering Codes - ASCO Series 7000SE (Service Entrance)
To order an ASCO Series 7000SE (Service Entrance) Transfer Switch, complete the catalog number as shown.
Factory Brochure   -   Product Details & Prices   -   Transfer Switch Finder Utility with Prices
7     +     A     +     US      +      A    +     3      +     600      +      N      +       5    +      C  
Product Neutral Code*Phase PolesAmperes

Voltage Code

Options

Cabinet

7AUSA3600N5C

 

7000

Series

 

A

 

Automatic

USConventional
2 Position
---No
Neutral

2

2 poles,
1
1 phase
 

70, 100, 150, 200, 225,
250, 400,
600, 800, 1000,
1200, 1600, 2000,
3000, 4000

 Code Voltage

5
No Accessories

CType 1
Standard
Enclosure
C208
NNon- AutomaticUBOpen
Transition
Bypass
ASolid
Neutral
33 poles,
3
3 phase
D2205X
Optional
Accessories 
MType 3R
Secure
Double
Door
 

 

 

 

CUSClosed
Transition
BSwitched
Neutral
 E230NType 4
Secure
Double
Door
F240 
CUBClosed
Transition
Bypass
COverlapping
Neutral
H380PType 4X
Secure
Double
Door
J400
DUSDelayed
Transition
 K415 QType 12
Secure
Double
Door
L440
M460  
DUBDelayed
Transition
Bypass
N480
P550
  Q575
R600
Notes: *Switches rated 150, 600-300 amps available with 2, 3 or either conventional switched neutral (4 poles) or overlapping neutral (optional). For 4 pole applications on switches rates 260 to 400 amps and 4000 amps, specify overlapping switched neutral (optional). Conventional switched neutral is provided on delayed transition transfer products when specified.

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