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I.B. ATS-CP01
AUTOMATIC, NON-AUTOMATIC AND
MANUAL TRANSFER SWITCHES
Enclosures meet all current applicable NEMA and UL standards for con-
duit entry, cable bending, gutter space and shielding of live components.
NEMA 1 Enclosures
NEMA 1 Transfer Switches are supplied with a front door only.
They can be mounted in a corner or against a wall. Access to
cable space can be via either side, bottom, top, or the rear.
NEMA 3R Enclosures
Additional 2" (5.1cm) clearance on each side of enclosure for
hooded vent patterns.
Requires appropriate rear-end clearance based on 26-34"
(66-86cm) door (800-2000A) or 31" (61cm) door (2500-
4000A).
NEMA 3R Transfer Switches are supplied with front & rear doors.
They can be mounted against a wall (allowing for hooded vent
pattern clearance), but not in a corner. Access to cable space is
via rear only.
NOTE: When open switch is mounted in customer enclosure, a vent pat-
tern similar to that used on a Culter-Hammer enclosure must be utilized.
Transfer
Dimensions & Conduit Opening
Switch
A
Rating
in (cm)
3 Pole
Fixed 28.00 (71.1)
50.00(127.0)
800-1200
4 Pole
Fixed 34.00 (86.4)
50.00 (127.0)
800-1200
3 Pole
Fixed 48.00 (121.9) 60.00 (152.4)
2500-4000A
4 Pole
Fixed 48.00 (121.9) 60.00 (152.4)
2500-4000A
800-1200A supplied with Option 17C
Transfer
Dimensions
Switch
F
G
Rating
in (cm)
in (cm)
2000A
Fixed 71.00 (180.3) 54.50 (138.4) 38.00 (96.5) 29.54 (75.0)
3000A
Fixed 67.00 (170.2) 47.00 (119.4) 27.00 (68.6) 36.03 (91.5)
4000A
Fixed 69.12 (175.6) 45.12 (114.6) 21.12 (53.6) 33.16 (84.2)
2.38
(6.0)
A
2.38
(6.0)
D
B
C
Hooded
Vent Pattern
(NEMA 3R)
Door
Top View
Dimensions are in inches
(centimeters).
Figure 4-1 Enclosed Fixed Mount Transfer Switch, 600-4000 amperes
Effective 5/98
B
C
D
in (cm)
in (cm)
in (cm)
23.50 (59.7)
22.00 (55.9)
29.50 (74.9)
22.00 (55.9)
43.25 (109.9)
22.00 (55.9)
43.25 (109.9)
22.00 (55.9)
H
I
in (cm)
in (cm)
Cable
Entry
28.0 (71) 3P
34.0 (86) 4P
26.5 (67) 3P
32.5 (83) 4P
Cutler-Hammer
Operatio
Cutler-Hammer
Digitrip 3000
Digitrip 3000
Operational
High
Time Overcurrent
High Load
Commun
Time Overcurrent
Curve Shape
Communications
RMS
Curve Shape
Trip
Pickup (x In)
RMS Amperes
Pickup (x In)
Time Multiplier
Time Multiplier
Short Delay
Short Delay
Time
Pickup (x In)
Time
Amp Demand
I
I
I
Phase
I
Ground
Instantaneous
Pickup (x In)
Settings/Test Time/Trip Cause
Phase
Phase
Phase
Program
Test
Phase
Phase
Ground
Ground
Program
Settings/Test
Program
Time/Trip Cause
Test
Generator
Generator
Push to Test
Push to
Auto Off P
uto Off Pos
Hold to Transfer
Hold to
Wt.
lb (kg)
1300 (590)
1400 (635)
Front View
1900 (862)
800-2000 amperes, 3 or 4 Poles
2100 (953)
800-1200 only if Option 17C is selected
48.0 (122)
12
24.0 (61)
(30)
Cutler-Hammer
Digitrip 3000
Operatio
Cutler-Hammer
High
Digitrip 3000
Operational
Commun
Time Overcurrent
High Load
Curve Shape
Communications
RMS
Time Overcurrent
Curve Shape
Trip
Pickup (x In)
Pickup (x In)
RMS Amperes
Time Multiplier
Time Multiplier
Short Delay
Short Delay
Time
Pickup (x In)
Amp Demand
Time
I
I
I
Phase
I
Instantaneous
Ground
Pickup (x In)
Settings/Test Time/Trip Cause
Phase
Phase
Phase
Program
Phase
Phase
Test
Ground
Ground
Settings/Test
Program
Program
Time/Trip Cause
Test
Generator
Generator
Push to
Push to Test
Auto Off P
uto Off Pos
Hold to
Hold to Transfer
Front View
2500-4000 amperes, 3 Poles
2500-3000 amperes, 4 Poles
50.0 (127)
9.75
30.5 (77)
(25)
I
Normal Power
Cable Connections
Load Cable
Connections
F
Emergency Power
Cable Connections
Vent
Patterns
G
H
Side View
60.0 (152)
14.5
31.0 (79)
(37)
I
Normal Power
Cable Connections
Load Cable
Connections
F
Emergency Power
Cable Connections
G
H
Side View
Page 13
Neutral Cable
Connection
& Grounding
(Right hand
side when
facing front
switch).
Neutral Cable
Connection
& Grounding
(Right hand
side when
facing front
switch).
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