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Date Code 20170927 Instruction Manual SEL-751 Relay
Preface
Safety Information
Product Labels for the SEL-751 With the Touchscreen Display
LED Emitter
The following table shows LED information specific to the SEL-751 (see
Figure 2.9 for the location of the ports using these LEDs on the relay).
(High-Voltage Supply)
(Low-Voltage Supply)
SEL-751 LED Information
Item
Fiber-Optic
Ethernet Port 1 (1A, 1B)
Port 2
Arc-Flash
Channel 1—8
Mode Multimode Multimode Multimode
Wavelength 1300 nm 820 nm 640 nm
Source LED LED LED
Connector type LC ST V-pin
Typical output power –15.7 dBm –16 dBm –12 dBm
Use of controls, adjustments, or
performance of procedures other than
those specified herein may result in
hazardous radiation exposure.
Looking into optical connections, fiber
ends, or bulkhead connections can
result in hazardous radiation
exposure.