UL
iQ
for Surge Protective Devices
Surge Protective Devices
E340498
Guide Information
Surge Suppression, LLC
PO Box 15732, Brooksville FL 34604
Model(s): ST3-503Y2A
Permanently Connected
SPD
Type
Volts
(V)
AC/DC
DC PV
Phase
Amps
(A)
Ambient
Min(°C)
Ambient
Max(°C)
Mode
VPR
(Vpk)
MCOV
(V)
In
(kA)
SCCR
(kA)
1
480/277
AC
3Y
n/a
-35
40
L-L
2500
640
20
200
L-N
1200
320
L-G
2500
320
N-G
1200
320
Evaluated to: UL 1449 5th Ed. Rev: 2022-12-15 and CSA C22.2 No. 269.1-17, 2017-02
Note -
Models may be followed by combinations of AC, AC10, AC11, AC12, AC13, B, C, DIN, Exx, -Eyyy, K, -LP, M, Rx, RC, S, S1, S6, W, WN, W1, X, Xx, XS, XS1, or Z (where x=null, 1, 2, 3..., and yyy=combinations of the above suffixes for diagnostics)
SPDs investigated for Type 1 applications are automatically suitable for Type 2 applications and may be marked for SPD Type 1 and/or Type 2 applications. SPDs only marked "SPD Type 2" are not suitable for Type 1 applications.
Where a minimum ambient temperature is not specified, assume 0°C unless the product is marked otherwise or with an Outdoor use Environmental Rating. See Electrical Equipment for Use in Ordinary Locations (AALZ) for details regarding Environmental Ratings.
Report Date:
2010-09-27
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Last Revised:
2023-12-04