I.B. ATS-CP01
Page 13
Effective 5/98
Figure 4-1 Enclosed Fixed Mount Transfer Switch, 600-4000 amperes
C
Cable
Entry
A
Hooded
Vent Pattern
(NEMA 3R)
Door
2.38
(6.0)
2.38
(6.0)
D
B
28.0 (71) 3P
34.0 (86) 4P
26.5 (67) 3P
32.5 (83) 4P
90.0 (229)
50.0 (127)
Cutler-Hammer
Digitrip 3000
Operational
High Load
Communications
Trip
Time Overcurrent
Curve Shape
Pickup (x In)
Time Multiplier
Pickup (x In)
Time
Program
Phase
Ground
I
I
I
RMS Amperes
Settings/Test Time/Trip Cause
Test
Program
Test
Pickup (x In)
Instantaneous
Short Delay
Amp Demand
I
Cutler-Hammer
Phase
Phase
Phase
Phase
Ground
Digitrip 3000
Operatio
High
Commun
Time Overcurrent
Curve Shape
Pickup (x In)
Time Multiplier
Time
Program
Phase
Ground
RMS
Settings/Test
Time/Trip Cause
Short Delay
30.5 (77)
9.75
(25)
Generator
Generator
Auto Off P
uto Off Pos
Push to
Push to Test
Hold to
Hold to Transfer
Cutler-Hammer
Digitrip 3000
Operational
High Load
Communications
Trip
Time Overcurrent
Curve Shape
Pickup (x In)
Time Multiplier
Pickup (x In)
Time
Program
Phase
Ground
I
I
I
RMS Amperes
Settings/Test Time/Trip Cause
Test
Program
Test
Pickup (x In)
Instantaneous
Short Delay
Amp Demand
I
90.0 (229)
48.0 (122)
24.0 (61)
60.0 (152)
31.0 (79)
Cutler-Hammer
Phase
Phase
Phase
Phase
Ground
Digitrip 3000
Operatio
High
Commun
Time Overcurrent
Curve Shape
Pickup (x In)
Time Multiplier
Time
Program
Phase
Ground
RMS
Settings/Test
Time/Trip Cause
Short Delay
12
(30)
14.5
(37)
Generator
Generator
Auto Off P
uto Off Pos
Push to
Push to Test
Hold to
Hold to Transfer
Vent
Patterns
Neutral Cable
Connection
& Grounding
(Right hand
side when
facing front
switch).
Load Cable
Connections
Load Cable
Connections
Normal Power
Cable Connections
Emergency Power
Cable Connections
Normal Power
Cable Connections
Emergency Power
Cable Connections
Neutral Cable
Connection
& Grounding
(Right hand
side when
facing front
switch).
F
I
G
H
F
I
G
H
Transfer
Dimensions & Conduit Opening
Wt.
Switch
A
B
C
D
Rating
in (cm)
in (cm)
in (cm)
in (cm)
lb (kg)
3 Pole
Fixed
28.00 (71.1)
50.00(127.0)
23.50 (59.7)
22.00 (55.9)
1300 (590)
800-1200
➀
4 Pole
Fixed
34.00 (86.4)
50.00 (127.0)
29.50 (74.9)
22.00 (55.9)
1400 (635)
800-1200
➀
3 Pole
Fixed 48.00 (121.9) 60.00 (152.4)
43.25 (109.9)
22.00 (55.9)
1900 (862)
2500-4000A
4 Pole
Fixed 48.00 (121.9) 60.00 (152.4)
43.25 (109.9)
22.00 (55.9)
2100 (953)
2500-4000A
Side View
800-2000 amperes, 3 or 4 Poles
800-1200 only if Option 17C is selected
Side View
➀
800-1200A supplied with Option 17C
2500-4000 amperes, 3 Poles
2500-3000 amperes, 4 Poles
Front View
Front View
Dimensions are in inches
(centimeters).
Top View
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
Switch
F
G
H
I
Rating
in (cm)
in (cm)
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)
