Schweitzer Engineering Laboratories SEL-787-3 - Communications Ports and Environmental Tests; Operating Temperature and Humidity

SEL-787-3, -4 Data Sheet Schweitzer Engineering Laboratories, Inc.
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Communications Ports
Standard EIA-232 (2 ports)
Location: Front Panel
Rear Panel
Data Speed: 300–38400 bps
EIA-485 Port (optional)
Location: Rear Panel
Data Speed: 300–19200 bps
Ethernet Port (optional)
Single/Dual 10/100BASE-T copper (RJ45 connector)
Single/Dual 100BASE-FX (LC connector)
Standard Multimode Fiber-Optic Port
Location: Front Panel
Data Speed: 300–38400 bps
Fiber-Optic Ports Characteristics
PORT 1 (or 1A, 1B) Ethernet
Wavelength: 1300 nm
Optical Connector Type: LC
Fiber Type: Multimode
Link Budget: 16.1 dB
Typical TX Power: –15.7 dBm
RX Min. Sensitivity: –31.8 dBm
Fiber Size: 62.5/125 µm
Approximate Range: ~6.4 km
Data Rate: 100 Mb
Typical Fiber Attenuation: –2 dB/km
PORT 2 Serial (SEL-2812 compatible)
Wavelength: 820 nm
Optical Connector Type: ST
Fiber Type: Multimode
Link Budget: 8 dB
Typical TX Power: –16 dBm
RX Min. Sensitivity: –24 dBm
Fiber Size: 62.5/125 µm
Approximate Range: ~1 km
Data Rate: 5 Mb
Typical Fiber Attenuation: –4 dB/km
Optional Communications Cards
Option 1: EIA-232 or EIA-485 communications card
Option 2: DeviceNet communications card
Communications Protocols
SEL, Modbus, DNP, FTP, TCP/IP, Telnet, SNTP, IEC 61850,
IEC 60870-5-103, M
IRRORED BITS, EVMSG, C37.118
(synchrophasors), and DeviceNet.
Operating Temperature
IEC Performance Rating: –40 to +85C (–40 to +185F)
(per IEC/EN 60068-2-1 & 60068-2-2)
NOTE: Not applicable to UL applications.
Note: LCD contrast is impaired for temperatures below –20°C and
above +70°C
DeviceNet Communications
Card Rating: +60°C (140°F) maximum
Operating Environment
Pollution Degree: 2
Overvoltage Category: II
Atmospheric Pressure: 80–110 kPa
Relative Humidity: 5–95%, noncondensing
Maximum Altitude: 2000 m
Dimensions
144.0 mm (5.67 in.) x 192.0 mm (7.56 in.) x 147.4 mm (5.80 in.)
Weight
2.0 kg (4.4 lbs)
Relay Mounting Screws (#8–32) Tightening Torque
Minimum: 1.4 Nm (12 in-lb)
Maximum: 1.7 Nm (15 in-lb)
Terminal Connections
Termina l Bl o c k
Screw Size:
#6
Ring Terminal Width:
0.310 in maximum
Terminal Block Tightening Torque
Minimum:
0.9 Nm (8 in-lb)
Maximum:
1.4 Nm (12 in-lb)
Compression Plug Tightening Torque
Minimum:
0.5 Nm (4.4 in-lb)
Maximum:
1.0 Nm (8.8 in-lb)
Compression Plug Mounting Ear Screw Tightening Torque
Minimum:
0.18 Nm (1.6 in-lb)
Maximum:
0.25 Nm (2.2 in-lb)
Type Tests
Environmental Tests
Enclosure Protection: IEC 60529:2001 + CRDG:2003
IP65 enclosed in panel
IP20 for terminals
IP50 for terminals enclosed in the
dust-protection assembly (protection
against solid foreign objects only, SEL
Part #915900170). The 10°C
temperature derating applies to the
temperature specifications of the relay.
Vibration Resistance: IEC 60255-27:2013
IEC 60255-21-1:1988
Class 2 Endurance, Class 2 Response
Shock Resistance: IEC 60255-21-2:1988
Class 1 Withstand, Class 2 Response
Seismic Resistance: IEC 60255-21-3:1993
Class 2 Response
Cold: IEC 60068-2-1:2007
EN 60068-2-1:2007
–40°C, 16 hours
Damp Heat, Cyclic: IEC 60068-2-30:2005
EN 60068-2-30:2005
Test Db; Variant 2; 25–55°C, 6 cycles,
95% relative humidity minimum
Damp Heat, Steady State: IEC 60068-2-78:2001
Severity Level: 93% relative humidity
minimum
40°C, 10 days
Dry Heat: IEC 60068-2-2:2007
EN 60068-2-2:2007
85°C, 16 hours