2.5
Date Code 20020903
SEL-587Z Instruction Manual
Installation
Rear-Panel Connections
Power
The SEL-587Z accepts dc power input for all three power supply models. The
48/125 Vdc supply also accepts 120 Vac; the 125/250 Vdc supply also accepts
120/240 Vac. When connecting a dc power source, you must connect the
source with the proper polarity, as indicated by the + (terminal 215) and –
(terminal 216) symbols on the power terminals. When connecting an ac power
source, the + terminal #215 is hot (H), and the – terminal #216 is neutral (N).
The terminals labeled POWER on the rear panel (215 and 216) must connect
to a power source that matches the power supply characteristics that your
SEL-587Z specifies on the rear-panel serial number label. (See
Introduction and Specifications
for complete power input specifications.)
The POWER terminals are isolated from chassis ground. Use 16 AWG
(1.5 mm
2
) size or heavier wire to connect to the POWER terminals.
Connection to external power must comply with IEC 947-1 and IEC 947-3.
Place an external switch, circuit breaker, or overcurrent device in the POWER
leads for the SEL-587Z; this device must interrupt both the hot (H) and neutral
(N) power leads. The maximum current rating for the power disconnect circuit
breaker or overcurrent device (fuse) must be 20 A. Be sure to locate this
device within 9.8 feet (3.0 m) of the relay.
Содержание SEL-587Z
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