Schweitzer Engineering Laboratories SEL-351 - High-Current Interrupting Output Contacts; Model 0351 Xt; Models 0351 X0 and 0351 X1; Models 0351 Xt and 0351 Xy

2-10 Installation Date Code 20001006
SEL-351 Instruction Manual
Power Supply
Models 0351xT and 0351xY
The power supply wiring harness includes a 2-position connector and factory-installed wire. Note
the polarity indicators on terminals Z15 (+) and Z16 (-), or 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 Z15 and Z16, or Z25 and Z26. The connector
locks in place upon insertion.
Refer to Section 1: Introduction and Specifications for power supply ratings. The relay power
supply rating is listed on the serial number sticker on the relay rear panel.
Models 0351x0 and 0351x1
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 Section 1: Introduction and Specifications for power supply ratings. The relay power
supply rating is listed on the serial number sticker on the relay rear panel.
Output Contacts
Model 0351xT
Model 0351xT can be ordered with standard or high-current interrupting output contacts (all of
one type or the other). Refer to General Specifications in Section 1: Introduction and
Specifications for output contact ratings. To determine the type of output contacts in your Model
0351xT relay, refer to the part number on the serial number sticker on the relay rear panel.
Standard Output Contacts
Model 0351xT part numbers with a numeral “1” in the field underlined below (sample part
number) indicate standard output contacts:
0351xT42533141
Standard output contacts are not polarity dependent.
High-Current Interrupting Output Contacts
Model 0351xT part numbers with a numeral “2” in the field underlined below (sample part
number) indicate high-current interrupting output contacts:
0351xT42533241
Courtesy of NationalSwitchgear.com