Specifications

February 2007
16-16
For more information visit: www.eaton.com CA08101001E
Transfer Switches
16
Transfer Switch Equipment
Wall-Mount Transfer Switches
Technical Data and Specifications
Contactor-Based Transfer Switch

Table 16-17. UL 1008 Withstand and Close-on Ratings (kA)

Consult factory for withstand ratings on the 3-position
contactor switches 100 – 1200 amperes.
Table 16-18. Terminal Data Options for Power Cable Connections
Molded Case Transfer Switch and Circuit Breaker
Table 16-19. UL 1008 Withstand and Close-on Ratings (kA)

For 600, 800 and 1000 ampere ratings, 1- through 4-pole units are rated
35 kA.
Table 16-20. Wall-Mount Transfer Switch Standard Terminal Data
for Power Cable Connections
Note: All terminals suitable for copper or aluminum conductors.
Note: For alternate terminal sizes, contact Eaton.
Typical Contactor-Based ATS 100 – 600 Amperes
Typical (225 – 1000 Amperes) Vertical Design
Transfer Switch Equipment
Contactor
Style
UL 1008
Ampere
Rating
Specific Breaker Rating
Maximum Circuit
Breaker Size Amperes
Maximum Amperes
at 480 Vac (UL)
61WNU-3FD
64WNU-3FD
64WNU-3FD
100
200
320
125
250
600
30,000
50,000
50,000
64WNU-3FD
66WNU-3FD
400
600
600
800
50,000
65,000
Switch
Rating
Amperes
Line Side
(Normal and
Standby Source)
Load
Connection
Neutral
Connection
100 (1) #14 – 2/0 (1) #14 – 2/0 (3) #14 – 2/0
200 (1) #6 – 250 (1) #6 – 250 (3) 1/0 – 250
320 (1) #4/0 – 600
(2) 1/0 – 250
(1) #4/0 – 600
(2) 1/0 – 250
(6) 250 – 500
(12) 4/0 – 500
(9) 500 – 750
400 (1) #4/0 – 600
(2) 1/0 – 250
(1) #4/0 – 600
(2) 1/0 – 250
(6) 250 – 500
(12) 4/0 – 500
(9) 500 – 750
600 (2) #2 – 600 (2) #2 – 600 (12) 4/0 – 500
(9) 500 – 750
Switch
Ampere
Rating
UL 1008 3-Cycle
Any Breaker Rating
Ratings When Used
with Upstream Fuse
240
Vac
480
Vac
600
Vac
Maximum
Fuse Rating
Fuse
Type
600
Vac
30 – 100
150
225
100
100
100
65
65
65
25
25
25
200
400
400
J, T
J, T
J, T
200
200
200
300
400
600

100
100
100
65
65
65
25
25
25
400
600
1200
J, T
J, T
J, T
200
200
200
800

1000

65
65
50
50
25
25
1600
1600
L
L
200
200
Switch
Ampere
Rating
Breaker
Frame
Line Side
(Normal and
Standby Source)
Load
Connection
Neutral
Connection
30 – 100
150 – 225
150 – 225
225 – 300
HFD
HFD
HKD
HKD
(1) #14 – 1/0
(1) #6 – 300
(1) #3 – 350
(1) #3 – 350
(1) #14 – 1/0
(1) #6 – 300
(1) #6 – 350
(1) #6 – 350
(3) #14 – 1/0
(3) #4 – 300
(3) #4 – 350
(3) #4 – 350
400
600
600
HLD
HLD
HMDL
(1) 4/0 – 600
(1) 3/0 – 350
(2) #1 – 500
(2) #1 – 500
(2) #1 – 500
(2) #1 – 500
(6) 250 – 350
(6) 250 – 350
(12) 4/0 – 500
600 (4-Pole)
800
800
1000
NB
HMDL
HNB
HNB
(3) 3/0 – 400
(3) 3/0 – 400
(4) 4/0 – 500
(4) 4/0 – 500
(3) 3/0 – 400
(3) 3/0 – 400
(4) 4/0 – 500
(4) 4/0 – 500
(3) 3/0 – 400
(12) 4/0 – 500
(12) 4/0 – 500
(12) 4/0 – 500
Manual Operating
Handle
Neutral
Connections
Voltage
Selection
and
Transformer
Panel
Normal Power Source
Voltage
Selection
Panel
Power
Panel
Load Lugs
Emergency
Power
Source
Logic
Panel
Transfer
Mechanism
Load Lugs
(Top Entry)
Neutral
Connections
Manual
Operating
Handle
Indicator
Wheel
Transfer
Mechanism
Motor
Brake
Board
Power Panel
Emergency Power
Source Molded
Case Switch
Voltage
Selection
Panel
(Domestic)
Service
Disconnect
Normal
Power
Source
Molded
Case
Switch