Schweitzer Engineering Laboratories, Inc.
SEL-3355-2 Data Sheet
9
Current Breaking Capacity:
10 kA
Grounded Neutral
Systems:
Device in series with the HOT or
energized conductor
DC and Isolated Systems:
Device in series with both conductors
Fuse Ratings
LV Power Supply Fuse
Rating:
15 A
Maximum Rated Voltage:
500 Vdc, 500 Vac
Breaking Capacity:
20 kA at 500 Vdc
Type:
Time-lag T
HV Power Supply Fuse
Rating:
5 A
Maximum Rated Voltage:
250 Vdc, 277 Vac
Breaking Capacity:
1500 A at 277 Vac
Type:
Time-lag T
Heater Fuses F2, F3:
5 A, 125 V slow blow
125 Vdc/50 A break rating
Note:
Fuses are not serviceable.
Contact Inputs and Outputs
Alarm Output Contact
Per IEC 255-0-20:1974, using the simplified method of assessment
Output Type:
Relay, Form C, break-before-make
Power Supply Burden:
<1 W maximum
Mechanical Life:
2000000 operations
Operational Voltage:
250 Vac/Vdc
Make:
30 A at 250 Vdc
Carry:
6 A continuous at 70°C
1 s Rating:
50 A
MOV Protection:
270 Vac/360 Vdc, 75 J
Insulation Voltage:
300 Vac/Vdc
Pickup Time:
<8 ms
Dropout Time:
<8 ms
Breaking Capacity (10000 operations):
24 V
0.75 A
L/R = 40 ms
48 V
0.50 A
L/R = 40 ms
125 V
0.30 A
L/R = 40 ms
250 V
0.20 A
L/R = 40 ms
Cyclic Capacity (2.5 cycles/second):
24 V
0.75 A
L/R = 40 ms
48 V
0.50 A
L/R = 40 ms
125 V
0.30 A
L/R = 40 ms
250 V
0.20 A
L/R = 40 ms
Terminal Connections
Compression Screw Terminal
Power Wiring
Insulation:
300 V min.
Size:
12–18 AWG
Alarm Wiring
Insulation:
300 V min.
Size:
12–18 AWG
Tightening Torque
Minimum:
0.6 Nm (5 in
-
lb)
Maximum:
0.8 Nm (7 in
-
lb)
Crimp Ferrule Recommended
Mounting Ear Tightening Torque
Minimum:
0.18 Nm (1.6 in
-
lb)
Maximum:
0.25 Nm (2.2 in
-
lb)
Grounding Screw
Ground Wiring
Insulation:
300 V min.
Size:
12 AWG, length <3 m
Tightening Torque
Minimum:
0.9 Nm (8 in
-
lb)
Maximum:
1.4 Nm (12 in
-
lb)
Ring Terminal Recommended
Serial Port
Tightening Torque
Minimum:
0.6 Nm (5 in-lb)
Maximum:
0.8 Nm (7 in-lb)
Video Port
Tightening Torque
Minimum:
0.6 Nm (5 in-lb)
Maximum:
0.8 Nm (7 in-lb)
Product Standards
Communications
Equipment in Utility
Substations:
IEC 61850-3:2013
IEEE 1613-2009
Severity Level: Class 1
Industrial Environment:
IEC 61000-6-2:2005
IEC 61000-6-4:2006
Electrical Equipment for
Measurement, Control,
and Laboratory Use:
IEC 61010-1:2013
UL 61010-1:2016,
C22.2 No. 61010-1:12
IEC 61010-2-201:2013
UL 61010-2-201:2017,
C22.2 No. 61010-2-201:14
Measuring Relays and
Protection Equipment:
IEC 60255-26:2013
IEC 60255-27:2013
Type Tests
Note:
To ensure good EMI and EMC performance, type tests were
performed using shielded Ethernet and serial cables with the shell
grounded at both ends of the cable, and the USB, video, and audio
cables with ferrite chokes. Double-shielded cables are recommended
for best EMI and EMC performance.
Electromagnetic Compatibility Emissions
Conducted and Radiated
Emissions:
CISPR 11:2009 + A1:2010
CISPR 22:2008
CISPR 32:2015
IEC 61000-6-4:2006
IEC 61850-3:2013
FCC 15-107:2014
FCC 15-109.2014
Severity Level: Class A
Canada ICES-001(A) / NMB-001(A)
Harmonic Current:
IEC 61000-3-2:2014
Severity Level: Class A
Voltage Flicker:
IEC 61000-3-3:2013