Full Product Manual
Volume 2—Commercial Distribution CA08100003E—April 2016 www.eaton.com V2-T1-17
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1.1
Switching Devices
Safety Switches
5. Trapped Key
Interlock Systems
Available only on heavy-duty
and double-throw safety
switches. Trapped key
systems are used on
safety switches to prevent
unauthorized operations
or to predetermine a series
of power transfers by an
authorized operator.
Before system construction
can begin, the following
information must be provided
to the Flex Center:
●
User—name, address and
telephone number
●
Complete coordination
(lock scheme) required
with order
To order, add Suffix TK to
the standard catalog number.
Example: DH363FWKTK.
Item 5
6. Upper Cover
Viewing Window
Upper viewing window is
centered over the switching
contacts to provide visual
verification of ON/OFF status.
Available on most heavy-duty
NEMA 4X stainless steel and
NEMA 12/3R and double-
throw enclosures. Not
available on non-metallic
enclosures. To order, add
Suffix W to the standard
catalog number.
Note: 30–100A window switches
are now provided with a full
view cover window for blade
verification and blown
fuse indication.
7. Lower Cover
Viewing Window
Lower viewing window is
positioned over fuses and
provides visual verification
of blown fuse indicators
for Littelfuse, Inc.™ fuses.
Available in 200–600A, two-
and three-pole heavy-duty
NEMA 4X stainless steel and
NEMA 12/3R enclosures.
Not available on nonmetallic
enclosures. To order, add
Suffix LW to standard
catalog number.
Note: 30–100A window switches
are now provided with a full
view cover window for blade
verification and blown
fuse indication.
Items 6 and 7
Contact the Safety Switch
Flex Center for lead-time.
8. Neutral Assemblies
Factory Installed for Double-
Throw Safety Switches
Item 8
To order, add Suffix N on
non-fusible switches OR
replace 6th character F with N
on fusible switches. The total
price is the standard switch
price plus the price adder.
Example 1: DT361URKN
non-fusible double-throw,
three-pole, 30A switch
with factory-installed
neutral assembly.
Example 2: DT363NRK
fusible double-throw,
three-pole, 100A switch
with factory-installed
neutral assembly.
Ampere
Rating
Switch
Type
30–1200 Heavy-duty
30–800 Double-throw
Viewing Window (Upper or Lower)
Ampere Rating
30–200
400–800
Ampere
Rating
Switch Type
Two- and Three-Pole
30 Fusible and non-fusible
60 Fusible and non-fusible
100 Fusible and non-fusible
200 Fusible and non-fusible
400 Non-fusible
600 Non-fusible
400 Fusible
600 Fusible
800 Non-fusible
9. Class “R” Fuse Clips
Factory Installed for
Heavy-Duty Switches
Item 9
To order, add Suffix 5 to
the standard catalog number
for 240V application.
Add Suffix 6 to standard
catalog number for 600V
application. Total price is
the standard catalog number
price plus the price adder
from the table above
depending on the number
of safety switch poles.
Example: DH324FRK5 heavy-
duty, three-pole, 200A switch
at 240V with factory-installed
Class “R” fuse clips.
10. Class “T” Fuse Clips
Factory Installed for
Heavy-Duty Switches
Item 10
To order, add Suffix T to
the standard catalog number
(catalog number identifies
voltage). Total price is the
standard catalog number
price plus the price adder
depending on the number
of safety switch poles.
Example: DH364FGKT heavy-
duty, three-pole, 200A fusible
switch at 480V with factory-
installed Class “T” Fuse Clips.
11. Class “J” Fuse Clips
Factory Installed for
Heavy-Duty and Double-
Throw Safety Switches
Item 11
Total price is the standard
catalog number price plus
the price adder from the
table above depending on
the number of safety poles.
Order by description. A table
of common 30A heavy-duty
switches with “J” fuse clips
factory installed is shown on
Page V2-T1-18 (field
modification kits are not
available for 30A heavy-
duty switches).
Ampere
Rating Voltage
30 240 and 600
60 240 and 600
100 240 and 600
200 240 and 600
400 240 and 600
600 240 and 600
Ampere
Rating Voltage
200 240
600
400 240
600
600 240
600
800 240
600
1200 240
600
Ampere
Rating Voltage
Switch
Ty pe
30 240 Heavy-duty and
double-throw
600 Heavy-duty and
double-throw
60 240 Heavy-duty and
double-throw
600 Heavy-duty and
double-throw
100 240 Heavy-duty and
double-throw
600 Heavy-duty and
double-throw
200 240 Heavy-duty and
double-throw
600 Heavy-duty and
double-throw
400 600 Double-throw
600 240 Heavy-duty
600 Heavy-duty