2-30 Installation Date Code 20001006
SEL-351 Instruction Manual
Output Contact Jumpers
Table 2.2 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 2.2, 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 7.28 through
Figure 7.30 for examples of output contact operation for different output contact types.
Output contacts OUT1 through OUT8 are fixed as “a” contacts in the Model 0351xT relay.
Table 2.2: Output Contact Jumpers and Corresponding Output Contacts
SEL-351 Relay
Model Number
Output Contact
Jumpers
Corresponding
Output Contacts
Reference
Figures
0351xT JMP4 - JMP7 ALARM - OUT9 2.15
0351x0, 0351x1,
and 0351xY
JMP21 - JMP29 (but not JMP23) ALARM - OUT101 2.16
0351xY JMP17 - JMP20 OUT212 - OUT209 2.17
0351x1 JMP17 - JMP28 OUT212 - OUT201 2.18
“Extra Alarm” Output Contact Control Jumper
All the SEL-351 Relay models have dedicated alarm output contacts (labeled ALARM – see
Figure 2.2 through Figure 2.4). 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-351 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 2.3).
Table 2.3: “Extra Alarm” Output Contacts and Corresponding Controlling Jumpers
SEL-351 Relay
Model Number
“Extra Alarm”
Output Contact
Controlling
Jumper
Reference
Figures
0351xT OUT11 JMP8 2.15, 7.28
0351x0, 0351x1, and
0351xY
OUT107 JMP23 2.16, 7.29
Courtesy of NationalSwitchgear.com
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