Product Brochure
Double-throw heavy-duty
non-fusible safety switches
Double-throw heavy-duty
fusible safety switches
Double-throw 240 and
600 Vac heavy-duty, fusible
Specifications
•
30–600A
•
Horsepower rated
•
Suitable for service entrance
use with neutral or ground
lug kit installed
•
Suitable for use as a
manually operated switch
per 2005 NEC Article 702
•
UL listed File No E5239
Features
•
Palm-fitting, visible red handle
•
Tri-lingual nameplate
•
Side opening doors on
all enclosures
•
Clear line shield to prevent
accidental contact with
energized parts; probe holes
enable line side testing
without removing the shield
•
Wiring configuration from
factory allows a single load
to be supplied by a normal
or alternate source; can be
modified to allow two loads
to be alternately supplied
by a single power source
•
Visible, embossed red
ON-OFF indication
•
Tangential knockouts
(30–100A) on top and bottom
endwall (bottom only on
NEMA 3R); concentric knock-
outs on higher ratings, and
sides and rear of 30–100A
•
Lockable door hasp
•
Lockable handle
•
Three-point mounting
(30–100A)
•
Four-point mounting
(200–600A)
•
Terminals suitable for 60º
or 75ºC Al or Cu wire on
30–100A; 75ºC Al or Cu wire
on higher ratings
•
Rounded shroud
•
Full range of accessories
•
Door cannot be opened
with the switch ON.
Switch cannot be turned ON
with door open (without oper-
ating interlock defeater)
•
Suitable for use on a circuit
capable of delivering not
more than 100,000 rms sym-
metrical amperes when pro-
tected by Class R or J fuses
(30–200A); R, T or J fuses
(400–600A). Short-circuit rat-
ing is 10,000 rms symmetrical
amperes when protected by
any other overcurrent protec-
tive device
•
Double-break visible rotary
blades; quick-make, quick-
break operation
Double-throw 240 and
600 Vac heavy-duty,
non-fusible
Specifications
•
30–800A
•
Horsepower rated
•
Suitable for service entrance
use with neutral or ground
lug kit installed
•
Suitable for use as a
manually operated switch per
2005 NEC Article 702
•
UL listed File No. E5239
Features
•
Palm-fitting, visible red handle
•
Tri-lingual nameplate
•
Side opening doors on
all enclosures
•
Visible, embossed red
ON-OFF indication
•
Tangential knockouts
(30–100A) on top and bot-
tom endwall (bottom only on
NEMA 3R); concentric knock-
outs on higher ratings, and
sides and rear of 30–100A
•
Lockable door hasp
•
Lockable handle
•
Three-point mounting
(30–100A)
•
Four-point mounting
(200–800A)
•
Terminals suitable for 60º
or 75ºC Al or Cu wire on
30–100A; 75ºC Al or Cu wire
on higher ratings
•
Rounded shroud
•
Full range of accessories
•
Door cannot be opened
with the switch ON; switch
cannot be turned ON with
door open (without operating
interlock defeater)
•
Suitable for use on a circuit
capable of delivering not more
than 100,000 rms symmetrical
amperes when protected by
Class R or J fuses (30–200A);
R, T or J fuses (400–800A).
Short-circuit rating is 10,000
rms symmetrical amperes
when protected by any other
overcurrent protective device
•
Double-break visible rotary
blades; quick-make, quick-
break operation
DT363FGK
Double-throw Heavy-Duty Fusible
Safety Switch, 100A, 600V
DT363URK
Double-throw Heavy-Duty Non-
Fusible Safety Switch, 100A, 600V
Double-Throw 240 Vac Heavy-Duty, Fusible
Ampere
Rating
Main
and
Standby
Fuse Class
Provision
Maximum Horsepower Ratings
with Time-Delay Fuses
NEMA 1
Enclosure Indoor
NEMA 3R
Enclosure Rainproof
Single-Phase
240 Vac
Three-Phase
240 Vac 250 Vdc
Catalog
Number
Catalog
Number
Two-Pole—240 Vac—250 Vdc
200
H 15 — 40 DT224FGK DT224FRK
Three-Pole—240 Vac—250 Vdc
30
60
100
200
400
600
1
H
H
H
H
H
T
3
10
15
15
—
—
7-1/2
15
30
60
125
50
5
10
20
40
50
50
DT321FGK
DT322FGK
DT323FGK
DT324FGK
DT325FGK
DT326FGK
DT321FRK
DT322FRK
DT323FRK
DT324FRK
DT325FRK
DT326FRK
A
Only available for use with fast-acting fuses. Standard hp rating is shown.
Double-Throw 600 Vac Heavy-Duty, Fusible
Ampere
Rating
Main
and
Standby
Fuse Class
Provision
Maximum Horsepower Ratings
with Time-Delay Fuses
NEMA 1
Enclosure
Indoor
NEMA 3R
Enclosure
Rainproof
NEMA 4X Enclosure,
Corrosion-Resistant
Stainless SteelSingle-Phase Three-Phase
480
Vac
600
Vac
480
Vac
600
Vac
250
Vdc
Catalog
Number
Catalog
Number
Catalog
Number
Three-Pole—600 Vac—250 Vdc
30
60
100
200
400
H
H
H
H
T
7-1/2
20
30
50
—
10
25
40
50
—
15
30
60
125
250
20
50
75
150
350
—
—
—
40
50
DT361FGK
DT362FGK
DT363FGK
DT364FGK
DT365FGK
—
—
DT363FRK
DT364FRK
DT365FRK
DT361FWK
DT362FWK
DT363FWK
DT364FWK
DT365FWK
ON
ON
OFF
Fusible
Two-Pole
Two Sources
ON
ON
OFF
Fusible
Two-Pole
Two Loads
ON
ON
OFF
Fusible
Three-Pole
Two Sources
ON
ON
OFF
Fusible
Three-Pole
Two Loads
Fusible
Three-Pole
Two Sources
ON
ON
OFF
Fusible
Three-Pole
Two Loads
Double-Throw 240 Vac Heavy-Duty, Non-Fusible
Ampere
Rating Main
and Standby
Maximum Horsepower
Ratings
NEMA 1
Enclosure
Indoor
NEMA 3R
Enclosure
Rainproof
Single-
Phase Three-Phase
240 Vac 240 Vac 250 Vdc
Catalog
Number
Catalog
Number
Non-Fusible Two-Pole—240 Vac—250 Vdc
30
60
100
200
400
600
3
10
20
15
—
—
—
—
—
—
—
—
5
10
20
40
50
—
DT221UGK
DT222UGK
DT223UGK
DT224UGK
DT225UGK
DT226UGK
—
—
—
DT224URK
DT225URK
—
Non Fusible Three-Pole—240 Vac—250 Vdc
30
60
100
200
400
600
800
800
3
10
20
15
—
—
—
—
10
20
40
60
125
125
125
125
5
10
20
40
50
50
50
50
DT321UGK
DT322UGK
DT323UGK
DT324UGK
DT325UGK
DT326UGK
DT327UGK
1 2
DT327UGK-N
—
—
DT323URK
DT324URK
DT325URK
—
—
—
A
Warning: Switch is not approved for service entrance.
B
Field-installable neutral kit is not available. If a neutral is required, order the catalog number shown in the table with “N” suffix.
ON
OF
F
ON
Non-Fusible
2-Pole
Two Sources or Two Loads
ON
O
F
F
ON
Non-Fusible
3-Pole
Two Sources or Two Loads
ON
OF
F
ON
S
/
N
Non-Fusible
3-Pole with Neutral
Two Sources or Two Loads
4
EATON CORPORATION Double-throw safety switch
5
EATON CORPORATION Double-throw safety switch