Installation 5-29
SEL-300G Instruction Manual Date Code 20000616
Output Contact Jumpers
Table 5.2 shows the correspondence between output contact jumpers and the output contacts they
control. The referenced figures show the exact location and correspondence. With a jumper in
the A position, the corresponding output contact is an “a” type output contact. An “a” type output
contact is open when the output contact coil is deenergized and closed when the output contact
coil is energized. With a jumper in the B position, the corresponding output contact is a “b” type
output contact. A “b” type output contact is closed when the output contact coil is deenergized
and open when the output contact coil is energized. These jumpers are soldered in place.
In the figures referenced in Table 5.2, note that the ALARM output contacts are “b” type output
contacts and the other output contacts are all “a” type output contacts. This is how these jumpers
are configured in a standard relay shipment
. Refer to corresponding Figure 4.16 and Figure 4.17
for examples of output contact operation for different output contact types.
Table 5.2: Output Contact Jumpers and Corresponding Output Contacts
SEL-300G Relay
Model Number
Output Contact
Jumpers
Corresponding
Output Contacts
Reference
Figures
All Models JMP21–JMP29
(but not JMP23)
ALARM–OUT101 Figure 5.25
0300G_1 and 0300G_Y JMP17–JMP28 OUT212–OUT201 Figure 5.26
“Extra Alarm” Output Contact Control Jumper
All the SEL-300G Relay models have dedicated alarm output contacts (labeled ALARM – see
Figure 5.4 through Figure 5.11). Often more than one alarm output contact is needed for such
applications as local or remote annunciation, backup schemes, etc. An extra alarm output contact
can be had for all the SEL-300G Relay models without the addition of any external hardware.
The output contact next to the dedicated ALARM output contact can be converted to operate as
an “extra alarm” output contact by moving a jumper on the main board (see Table 5.3).
Table 5.3: “Extra Alarm” Output Contacts and Corresponding
Controlling Jumpers
SEL-300G Relay
Model Number
“Extra Alarm”
Output Contact
Controlling
Jumper
Reference
Figures
All Models OUT107 JMP23 Figure 5.25,
Figure 4.16
The position of the jumper controls the operation of the output contact OUT107. With the jumper
in one position, the output contact operates regularly. With the jumper in the other position, the
output contact is driven by the same signal that operates the dedicated ALARM output contact
(see Table 5.4).
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