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TSA A 3 400 N 5X C
Page 22
To order an ASCO 7000 Series Power Transfer Switch, complete the following catalog number:
The Example Catalog Number above is 7ATSA3400N5XC
(X is used to specify optional accessories).
7
*Note: Switches rated 30-230, 600-3000 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 4000 amps specify overlapping switched neutral (optional).
Conventional switch neutral is provided on delayed transition transfer products when specified.
200 and 230 amp switch limited to 480 volts maximum.
Amperes
Voltage
Code
Grp
Code
Enclosure
Neutral
Code*
Product
Phase
Poles
115
120
208
220
230
240
380
400
415
440
460
480
550
575
600
TS
TB
CTS
CTB
DTS
DTB
2
3
A
N
M
Automatic
Non-
Automatic
Manually
Operated
5
5X-
optional
acces-
sories
---
C
E
F
G
H
K
L
M
N
P
Q
---
A
B
C
Conventional
2-Position
Open
Transition
Bypass
Closed
Transition
Closed
Transition
Bypass
Delayed
Transition
Delayed
Transition
Bypass
No Neutral
Solid
Neutral
Switched
Neutral
Overlapping
Neutral
30
70
100
150
200
230
260
400
600
800
1000
1200
1600
2000
3000
4000
A
B
C
D
E
F
H
J
K
L
M
N
P
Q
R
No enclosure
Type 1 enclosure
Type 2 enclosure
Type 3R
enclosure
Type 4 enclosure
Type 4X
enclosure
(stainless steel)
Type 7 enclosure
Type 12
enclosure
Type 3R secure
double door
Type 4 secure
double door
Type 4X secure
double door
Type 12 secure
double door
Transfer Switch Configurations
7A TS, 7N TS, 7A DTS, 7A CTS, 7N DTS, 7N CTS
Transfer/Bypass Configurations
7A TB, 7N TB, 7A DTB, 7A CTB, 7N DTB, 7N CTB
Sizes of UL-Listed Solderless Screw-Type
Terminals for External Power Connections
Notes: 1. Unit is designed for top cable entry of emergency and load and bottom
entry of normal. Optionally, the switch may be supplied with reverse
source and/or bottom entry load, when specified.
2. All main terminals are rear connected. The 4000 amp switch is
arranged for bus bar connection. Contact ASCO if provisions for cable
connection are required.
Switch Rating
amps
Max # of Conductors
per Terminal
Range of AL-CU
Conductor Sizes
One
One
Two
Two
Four
Six
Twelve
#14 to 4/0 AWG
#4 AWG to 600 MCM
#1/0 AWG to 600 MCM
#1/0 AWG to 600 MCM
#1/0 AWG to 600 MCM
#1/0 AWG to 250 MCM
#1/0 AWG to 600 MCM
30 -230
3
600
800-1200
1
1600-2000
3000
4000
2
260-400
Sizes of UL-Listed Solderless Screw-Type
Terminal for Power Connections
Switch Rating
amps
Max # of Conductors
per Terminal
Range of AL-CU
Conductor Sizes
One
Two
Two
Four
Six
Ten
Twelve
# 1/0 AWG to 250 MCM
# 4 AWG to 600 MCM
# 2 AWG to 600 MCM
# 2 AWG to 600 MCM
# 2 AWG to 600 MCM
# 1/0 AWG to 600 MCM
# 1/0 AWG to 600 MCM
150,260,400
600
4
800,1000,1200
4
1600-2000
4
3000
4
4000
4
3. 200 and 230 amp rating for copper conductors only.
4. All main terminals are rear connected. A front connected version is
available in 600 and 800 amp ratings only with top cable entry only.
See pages 24 and 25 for dimensional data.
7000 Series Ordering Information
Suitable for Bus Bar Connection or Lugs Can Be Field Modified
*
ASCO
*