2.16
SEL-351S Relay Instruction Manual Date Code 20080103
Installation
Making Rear-Panel Connections
Model 0351Sx1 (Screw-Terminal Blocks)
Tools: Phillips
®
or slotted-tip screwdriver.
Parts: All screws are size #6-32. Locking screws can be requested from
the factory.
Chassis Ground
Model 0351SxY
Ground the relay chassis at terminal Z27 with the spade connector provided in
the previously discussed wiring harness (tab size 0.250 inches x 0.032 inches).
If the tab on the chassis is removed, the chassis ground connection can be
made with the size #6-32 screw.
Model 0351Sx1
Ground the relay chassis at terminal Z27.
Power Supply
Model 0351SxY
The power supply wiring harness includes a two-position connector and
factory-installed wire. Note the polarity indicators on terminals Z25(+) and
Z26(–). Control power passes through these terminals to a fuse and to the
switching power supply. The control power circuitry is isolated from the relay
chassis ground.
Plug the power supply connector into terminals Z25 and Z26. The connector
locks in place upon insertion.
Refer to Specifications on page 1.10 for power supply ratings. The relay
power supply rating is listed on the serial number sticker on the relay rear
panel.
Model 0351Sx1
Connect control voltage to the POWER terminals. Note the polarity indicators
on terminals Z25(+) and Z26(–). Control power passes through these terminals
to a fuse and to the switching power supply. The control power circuitry is
isolated from the relay chassis ground.
Refer to Specifications for power supply ratings. The relay power supply
rating is listed on the serial number sticker on the relay rear panel.
Output Contacts
All relays come with nonpolarity-dependent standard contacts for OUT101–
ALARM.
Standard output contacts are not polarity dependent.
Extra I/O
OUT201–OUT212 can be ordered with standard or high-current output contacts.
Refer to Specifications on page 1.10 for output contact ratings. To determine
the type of output contacts on the extra I/O board of your Model 0351S relay,
refer to the part number on the serial number sticker on the relay rear panel.
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