Specifications

7000 Series Ordering Information
To order an ASCO 7000 Series Automatic Transfer Switch, complete the following catalog number:
The Example Catalog Number above is 7ATSA3400N5XC
(X could be for Accessory 85L ASCO Data Monitor connected to load).
+ +
+
+
++
TS
A
7
A
3
400
N
5X
C
Note: Switches rated 30-150, 600-2000 amps available with 2, 3 or either 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).
Overlapping neutral is not available on delayed transition transfer products.
Amperes
Voltage
Code
Grp
Code
Cabinet
Neutral
Code
Product
Phase
Poles
1000
1200
1600
2000
3000
4000
115
120
208
220
230
240
277
380
400
415
440
460
480
550
575
600
TS
TB
CTS
CTB
DTS
DTB
2
3
A
N
Automatic
Non-
Automatic
5
5X
---
C
D
E
F
G
H
K
L
---
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
260
400
600
800
A
B
C
D
E
F
G
H
J
K
L
M
N
P
Q
R
No Cabinet
Type 1 enclosure
Type 1 gasketed
Type 2 enclosure
Type 3R
enclosure
Type 4 enclosure
Type 4X
enclosure
(stainless steel)
Type 7 enclosure
Type 12
enclosure
Page 16
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. A
cable pull box is also available for all top or bottom cable
access (optional).
2. All main terminals are rear connected. 3000 and 4000 amp
switches are 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
One
Two
Three
Four
Six
Suitable for Bus Bar Connection
#8 to 3/0 AWG
# 14 to 2/0 AWG
#4 AWG to 600 MCM
#1/0 AWG to 750 MCM
#1/0 AWG to 750 MCM
#1/0 AWG to 250 MCM
#2 AWG to 600 MCM
30, 70, 100
150
600-800
1000-1200
1
1600-2000
3000-4000
2
240-400
Sizes of UL-Listed Solderless Screw-Type
Terminal for External Power Connections
Switch Rating
amps
Max # of Conductors
per Terminal
Range of AL-CU
Conductor Sizes
One
Two
Three
Four
Six
Eight
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 750 MCM
# 1/0 AWG to 750 MCM
150,260,400
600-800
1000-1200
1
1600-2000
1
3000
1
4000
1
Notes: 1. All main terminals are rear connected.
7A TS, 7N TS, 7A DTS, 7A CTS,
7N DTS, 7N CTS
7A TB, 7N TB, 7A DTB, 7A CTB,
7N DTB, 7N CTB