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8
IO-70075
08/2020
ASCO 450/451/452/453 Surge Protective Device (SPD)
Electrical
Table 1:
Voltage Ratings
Voltage Codes
P
Per Phase
kA Rating
System
Modes of
Protection
Connection
Type
kA Rating
Per Phase
Series/
Product Line
120S = 120/240V Split Phase - 1Ø,
3W+Grnd, (Fig 1)
120Y = 208Y/120V Wye - 3Ø 4W+Grnd,
(Fig 2)
240H = 240/120V High Leg Delta (B High),
(Fig 3)
277Y = 480Y/277V Wye - 3Ø 4W+Grnd,
(Fig 2)
347Y = 600Y/347V Wye - 3Ø 4W+Grnd,
(Fig2)
480D = 480V Delta - 3Ø 3W+Grnd, (Fig4)
& HRG Wye
120N = 120V Single Phase (Fig 5)
127N = 127V Single Phase (Fig 5)
127S = 127/254V Split Phase - 1Ø
3W+Grnd, (Fig 1)
127Y = 220Y/127V Wye - 3Ø 4W+Grnd
(Fig 2)
220Y = 380Y/220V Wye - 3Ø 4W+Grnd
(Fig 2)
230Y = 400Y/230V Wye - 3Ø 4W+Grnd
(Fig 2)
240N = 240V Single Phase (Fig 5) - Not
split phase
240S = 240/480V Split Phase, or Two legs
of Wye, (Call)
240Y = 415Y/240V Wye - 3Ø 4W+Grnd
(Fig 2)
240C = 240V B Corner Grnd Delta, 3Ø
3W+Grnd (Fig 6)
240D = 240V Delta - 3Ø 3W+Grnd (Fig 4)
254Y = 440Y/254V Wye - 3Ø 4W+Grnd
(Fig 2)
277N = 277V Single Phase (Fig 5)
277S = 240/480V Split Phase, or Two legs
of Wye, (Call)
300N = 300V Single Phase (Fig 5)
300Y = 520Y/300V Wye - 3Ø 4W+Grnd
(Fig 2)
480N = 480V Single Phase (1 Hot, 1 Neu,
1 Grnd) (Fig 5)
480C = 480V B Corner Grnd Delta, 3Ø
3W+Grnd (Fig 6)
600C = 600V B Corner Grnd Delta, 3Ø
3W+Grnd (Fig 6)
600D = 600V Delta - 3Ø 3W+Grnd (Fig 4)
& HRG Wye
450 = Component SPD,
UL Recognized
Standard Modes
451 = Component SPD,
UL Recognized
10 Modes
452 = Component SPD,
UL Recognized
Standard Modes
453 = Component SPD,
UL Recognized
10 Modes
10 = 100kA
15 = 150kA
20 = 200kA
25 = 250kA
30 = 300kA
31 = 300kA
40 = 400kA
45 = 450kA
50 = 500kA
60 = 600kA
80 = 800kA
90 = 900kA
1K = 1000kA
A = All Standard Modes for that Product
Line & Voltage Code
L = Delete L-N (Reduce kA Rating)
G = Delete L-G (Reduce kA Rating)
N = Delete N-G
C = Compression
Lugs or
Terminals
R = Internal Rot.
Disc.
Monitoring
Options
N
Enclosure
UL 1449
Type1/Type 2
Accessory/
Option(s)
A = LED(s)/Aud. Alarm/
Relay
C = LED(s)/Aud. Alrm/
Relay/
Surge Counter
1 = Type 1
2 = Type 2
(Includes
UL1283
Filter)
0 = No Accessory/
Option
X = Yes Accessory/
Option
Figure 1
SPLIT
2 Phase, 1 Neutral,
1 Ground
Phase B (Black)
Phase A (Black)
Neutral (White)
V
V
}
}
Ground (Green)
Figure 2
WYE
3 Phase, 1 Neutral,
1 Ground
}
Phase A (Black)
Phase B (Black)
Neutral (White)
Phase C (Black)
Ground (Green)
A
C
N
V
B
Figure 3
HI-LEG DELTA
(B High) 3 Phase,
(B HIGH), 1 Neutral,
1 Ground
Phase A (Black)
Phase B (Orange)
Neutral (White)
Phase C (Black)
Ground (Green)
}
V
Figure 5
SINGLE POLE
1 Phase, 1 Neutral,
1 Ground
V
}
Neutral (White)
Phase A (Black)
Ground (Green)
Figure 4
DELTA & HRG WYE
3 Phase, 1 Ground
Phase A (Black)
Phase C (Black)
Phase B (Black)
Ground (Green)
}
V
Figure 6
CORNER GROUND
DELTA (B grounded)
2 Phase, 1 Ground
Phase A (Black)
Phase C (Black)
Ground (Green)
V
}
