Specifications

February 2007
CA08101001E For more information visit: www.eaton.com
16-9
Transfer Switches
16
Transfer Switch Equipment
Non-Automatic Wall-Mount Transfer Switch
Molded Case Switches —
Non-Automatic Wall-Mount
Non-Automatic Wall-Mount
Product Description
Eaton’s Cutler-Hammer Wall-Mount
Non-Automatic Transfer Switches
are designed for a variety of standby
power applications for critical loads.
In the event of a primary power source
interruption, the user can manually
transfer the load circuits to the standby
power source through the use of an
external pushbutton. Once primary
power has been restored, the user can
manually transfer the load circuits back
to the primary power source through
the use of an external pushbutton.
Application Description
Non-Automatic transfer switches
cover applications ranging from 30 to
1000 amperes through 600 Vac, for
manual configurations, open transition,
standard or service entrance.
Features, Benefits
and Functions
Features
■ Molded case switch power contact
assemblies.
■ Positive mechanical and electrical
interlocking.
■ Permanently affixed manual
operating handle.
■ Pushbutton operation.
Benefits
■ High withstand, totally enclosed
for maximum arc suppression and
isolation during power transfer.
■ Optional trip units offer system
overcurrent protection.
■ Prevents the paralleling of two
sources of power.
■ Permits safe and convenient manual
transfer of power under load via
external pushbutton initiated
operation.
Standards and Certifications
■ Complies with UL 1008 and UL 489
standards.
■ IBC seismic qualified.
■ Meets American Bureau of Shipping
(ABS) approval.
Technical Data and Specifications
Table 16-11. 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.
Table 16-12. Transfer Switch Ratings — Systems Coordination Information —
Withstand, Closing and Interrupting Ratings


For maximum breaker ratings in circuits when the transfer switch is evaluated as a “Motor Branch
Circuit Conductor,” refer to NEC Section 430-25 for sizing.

Class RK5 fuse with 100 kA rating.

4-pole units rated 35 kA.
Switch
Ampere Rating
Breaker
Frame
Line Side (Normal
and Standby Source)
Load
Connection
Neutral
Connection
30 – 100
150 – 225
225 – 300
HFD
HFD
HKD
(1) #14 – 1/0
(1) #6 – 300
(1) #3 – 350
(1) #14 – 1/0
(1) #6 – 300
(1) #6 – 350
(3) #14 – 1/0
(3) #4 – 300
(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
NB
HMDL
HNB
(3) 3/0 – 400
(3) 3/0 – 400
(4) 4/0 – 500
(3) 3/0 – 400
(3) 3/0 – 400
(4) 4/0 – 500
(3) 3/0 – 400
(12) 4/0 – 500
(12) 4/0 – 500
1000 HNB (4) 4/0 – 500 (4) 4/0 – 500 (12) 4/0 – 500
Standard UL 1008 3-Cycle — Horizontal and Vertical Industrial
ATS
Ampere
Rating
Any Breaker Rating Ratings When Used with Upstream Fuse (kA)
240
Volts
480
Volts
600
Volts
Maximum
Fuse Rating
Fuse
Type

600
Volts
30
70
100
100
100
100
65
65
65
25
25
25
200
200
200
J,T
J,T
J,T
200
200
200
150
200
225
100
100
100
65
65
65
25
25
25
400
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
800/1200
J,T
J,T
J,T
200
200
100/200
800
1000
65
65
50

50

25
25
1200/1600
1600
L
L
100/200
200