Schweitzer Engineering Laboratories, Inc. SEL-487B Data Sheet
27
Pickup/Dropout Time: ms, resistive load
Break Capacity (10000 operations):
48 Vdc 10.0 A L/R = 40 ms
125 Vdc 10.0 A L/R = 40 ms
250 Vdc 10.0 A L/R = 20 ms
Cyclic Capacity (4 cycles in 1 second, followed by 2 minutes idle for
thermal dissipation):
48 Vdc 10.0 A L/R = 40 ms
125 Vdc 10.0 A L/R = 40 ms
250 Vdc 10.0 A L/R = 20 ms
Note: Do not use hybrid control outputs to switch ac control signals. These
outputs are polarity dependent.
High-Speed, High-Current Interrupting
Make: 30 A
Carry: 6 A continuous carry at 70°C
4 A continuous carry at 85°C
1 s Rating: 50 A
MOV Protection
(maximum voltage): 250 Vac, 330 Vdc
Pickup Time: 10 s, resistive load
Dropout Time: 8 ms, resistive load
Update Rate: 1/12 cycle
Break Capacity (10000 operations):
48 V 10.0 A L/R = 40 ms
125 V 10.0 A L/R = 40 ms
250 V 10.0 A L/R = 20 ms
Cyclic Capacity (4 cycles in 1 second, followed by 2 minutes idle for
thermal dissipation):
48 V 10.0 A L/R = 40 ms
125 V 10.0 A L/R = 40 ms
250 V 10.0 A L/R = 20 ms
Note: Per IEC 60255-23:1994, using the simplified method of assessment.
Note: Make rating per IEEE C37.90
-2005
Note: Per IEC 61810
-2:2005.
Control Inputs
Main Board: 5 inputs with no shared terminals
2 inputs with shared terminals
INT4 Interface Board: 6 inputs with no shared terminals
18 inputs with shared terminals (2 groups
of 9 inputs, with each group sharing one
terminal)
Voltage Options: 24, 48, 110, 125, 220, 250 V
DC Thresholds (Dropout thresholds indicate level-sensitive option)
24 Vdc: Pickup 19.2–30.0 Vdc
48 Vdc: Pickup 38.4–60.0 Vdc;
Dropout < 28.8 Vdc
110 Vdc: Pickup 88.0–132.0 Vdc;
Dropout < 66.0 Vdc
125 Vdc: Pickup 105–150 Vdc;
Dropout < 75 Vdc
220 Vdc: Pickup 176–264 Vdc;
Dropout < 132 Vdc
250 Vdc: Pickup 200–300 Vdc;
Dropout < 150 Vdc
AC Thresholds (Ratings met only when recommended control input
settings are used—see Table 2.1)
24 Vac: Pickup 16.4–30.0 Vac
48 Vac: Pickup 32.8–60.0 Vac;
Dropout < 20.3 Vac
110 Vac: Pickup 75.1–132.0 Vac;
Dropout < 46.6 Vac
125 Vac: Pickup 89.6–150.0 Vac;
Dropout < 53.0 Vac
220 Vac: Pickup 150.3–264 Vac;
Dropout <93.2 Vac
250 Vac: Pickup 170.6–300 Vac;
Dropout <106 Vac
Current Drawn: <5 mA at nominal voltage
<8 mA for 110 V option
Sampling Rate: 2 kHz
Communications Ports
EIA-232: 1 Front and 3 Rear
Serial Data Speed: 300–57600 bps
Communications Card Slot for Optional Ethernet Card
Ordering Options: 100BASE-FX Fiber-Optic Ethernet
Fiber Type: Multimode
Wavelength: 1300 nm
Source: LED
Connector Type: LC fiber
Min. TX Power: –19 dBm
Max. TX Power: –14 dBm
RX Sensitivity: –32 dBm
Sys. Gain: 13 dB
Communications Ports for Optional TiDL Interface
EtherCAT Fiber-Optic
Ports: 8
Data Rate: Automatic
Connector Type: LC fiber
Protocols: Dedicated EtherCAT
Class 1 LASER/LED
Wavelength: 1300 nm
Fiber Type: Multimode
Link Budget: 11 dB
Min. TX Power: –20 dBm
Min. RX Sensitivity: –31 dBm
Fiber Size: 50–200 m
Approximate Range: 2 km
Data Rate: 100 Mbps
Typical Fiber
Attenuation: –2 dB/km
Time Inputs
IRIG-B Input—Serial Port 1
Input: Demodulated IRIG-B
Rated I/O Voltage: 5 Vdc
Operating Voltage
Range: 0–8 Vdc
Logic High Threshold: 2.8 Vdc
Logic Low Threshold: 0.8 Vdc
Input Impedance: 2.5 k
IRIG-B Input—BNC Connector
Input: Demodulated IRIG-B
Rated I/O Voltage: 5 Vdc
Operating Voltage
Range: 0–8 Vdc
Logic High Threshold: 2.2 Vdc
Logic Low Threshold: 0.8 Vdc
Input Impedance: 50 or > 1 k
Dielectric Test Voltage: 0.5 kVac
To Next Page
Loading...
