SEL-2725 Data Sheet
Schweitzer Engineering Laboratories, Inc.
2
Installation and Maintenance
Power Supply
DANGER
Contact with instrument terminals may cause electrical shock which can
result in injury or death.
You can order the SEL-2725 with the supply voltage
listed in
. The serial number label on the
device lists the power supply voltage. The SEL-2725
power supply ceases operation when the input voltage is
too low to maintain reliable operation. Applying the
rated input voltage returns the SEL-2725 to proper oper-
ation.
Use 1.5 mm
2
(16 AWG) wire (or heavier) to connect to
the
POWER
terminals. Use copper conductors only. Use
AL, AL-CU, CU-AL, CC-CU, or CU-CC wire. When
you use a dc power source, you must connect the source
with the proper polarity, as indicated by the
+
and
–
sym-
bols on the power terminals. After connecting the input
wiring and introducing the external source of power, you
will see the
POWER
LED illuminate. For compliance to
UL/CSA/IEC 61010-1, the SEL-2725 must be installed
so that the input power and protective grounding is not
accessible during normal operation.
The storage of the equipment should be in the supplied
packaging and must be kept between –40 degrees to 176
degrees Fahrenheit.
Protective Ground
Use 1.5 mm
2
(16 AWG) wire (or heavier) to connect to
the
Protective Ground
terminal.
Disconnect Device
Disconnect device must be located in reasonable proxim-
ity and be readily accessible. This disconnect must also
comply with IEC 60947-1 and IEC 60947-3 or an equiv-
alent approved disconnect device appropriate for the
country of installation and be identified as the disconnect
device for this equipment.
The maximum current rating for the power disconnect
circuit breaker or overcurrent device must be 15 A. Oper-
ational power is internally fused. This fuse is not user-
replaceable. Should failure occur, return the unit to the
factory for repair.
Branch Circuit Protection
The maximum current rating for the power branch circuit
protection device must be 15 A.
Figure 1
Ethernet Connections and Indicators
Green LED: Link = solid
Activity = blinking
Yellow LED: Full Duplex = solid
Collision = blinking
Power
Indication
SEL-2725
SEL-2725
Legacy Serial Device
Local Cat 5 Ethernet Devices
SEL-2411
SEL-710
SEL-734
SEL-2725
Ethernet Switch
SEL-2890
Programmable
Automation Controller
Motor Protection
Metering
Ethernet Transceiver
Fiber connection
to managed
switch
Four 10/100BASE-T
ports (Auto crossover)
100BASE-FX or
100BASE-LX10 Fiber Port
LC Connector
