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15
Double Throw Safety Switches
Amperage
Rating
Product Number Horsepower Rating
DC Horsepower Rating
NEMA
Type 1
Indoor
NEMA
Type 3R
Outdoor
Single-Phase Three-Phase
120 Vac 240 Vac 120 Vac 240 Vac 480 Vac 600 Vac 125 Vdc 250 Vdc
Std
Fuse
Time
Delay
Std
Fuse
Time
Delay
Std
Fuse
Time
Delay
Std
Fuse
Time
Delay
Std
Fuse
Time
Delay
Std
Fuse
Time
Delay
Std
Fuse
Time
Delay
Std
Fuse
Time
Delay
Fusible / 3 Pole/ 3 Wire / 240V
30 TDT3321 TDT3321R 0.5 2 1.5 3 1.5 3 3 7.5 2 3 5 5
60 TDT3322 TDT3322R 1.5 3 3 10 3 7.5 7.5 15 5 10 10
100 TDT3323
1
TDT3323R
1
7.5 15 15 30 20
200 TDT3324
1
TDT3324R
1
15 15 25 60 40 40
400 TDT3325
1
TDT3325R
1
50 125 50
600 TDT3326
3,4
TDT3326R
3,4
50 125 100 250 125 350 50 50
800 TDT3327
3,4
TDT3327R
3,4
100 125
1200 TDT3328
4
TDT3328R
4
Amperage
Rating
Product Number Horsepower Rating
DC Horsepower
Rating
NEMA
Type 1
Indoor
NEMA
Type 3R
Outdoor
NEMA
Type 4X
Stainless
Steel
Single-Phase Three-Phase
120 Vac 240 Vac 480 Vac 600 Vac 120 Vac 240 Vac 480 Vac 600 Vac
125
Vdc
250 Vdc
Std
Fuse
Time
Delay
Std
Fuse
Time
Delay
Std
Fuse
Time
Delay
Std
Fuse
Time
Delay
Std
Fuse
Time
Delay
Std
Fuse
Time
Delay
Std
Fuse
Time
Delay
Std
Fuse
Time
Delay
Time
Delay
Std
Fuse
Time
Delay
Fusible / 3 Pole / 3 Wire / 600V
30 TDT3361 TDT3361R TDT3361SS 0.5 2 3 7.5 3 10 1.5 3 3 7.5 5 15 7.5 20 3 5
60 TDT3362
1
TDT3362R
1
TDT3362SS
1
1.5 3 3 10 5 20 10 25 3 7.5 7.5 15 15 30 15 50 5 10
100 TDT3363
1
TDT3363R
1
TDT3363SS
1
7.5 15 10 30 15 40 15 30 25 60 30 75 20
200 TDT3364
1
TDT3364R
1
TDT3364SS
1
15 15 25 50 30 50 25 25 50 125 60 150 40 40
400 TDT3365
2
TDT3365R
2
TDT3365SS
2
50 125 100 250 125 350 50 50
600 TDT3366
3,4
TDT3366R
3,4
50 125 100 250 125 350 50
800 TDT3367
3,4
TDT3367R
3,4
100 125 200 250 250 350
1200 TDT3368
4
TDT3368R
4
1
Class J fuse option available when load base is moved.
2
400 Amp at 600V switches available with Class T fuse provision only.
3
Field convertible to Class T.
4
Stacked design requiring only one set of fuses (Class L).
Maximum
System
Voltage
Ampere
Rating
Switch
Type
UL Listed Fusing
Enclosure
Type
Class
Withstand Rating
(rms Sym Amps)
600Vac 30-1200
Fusible
R 100,000
N1
N3R
N4X
J 100,000
T 100,000
L 100,000
Non-fusible
5
R 10,000
J 10,000
T 10,000
L 10,000
5
Non-fusible switch withstand ratings apply when protected by corresponding listed fuse type.
Ampere Rating Wire Range AWG/kcmil Cu/Al
30 14-2
60 14-1/0
100 14-1/0
200 6-250
400 (2) 1/0-(2) 300 or (1) 1/0-(1) 750
6
600 (1) 2-(1) 600 or (1) 1/0-(1) 750
7
800 (3) 250-(3) 500
1200 (4) 1/0-(4) 750
6
Single barrel lug that accepts one or two cables per phase as detailed above.
7
Double barrel lug that accepts two cables per phase as detailed above.
Fusible
Double Throw Safety Switch Short Circuit Ratings
Lug Wire Sizes Line and Load Terminals
Fusible / 3 Pole /
3 Wire / 240 V
Fusible / 3 Pole /
3 Wire / 600 V
ON
ON
OFF
ON
ON
OFF