Macromatic PLP Series Catalog Page
three-phase monitor relays | plug-in
Protects against phase loss &
phase reversal
Universal voltage range of 190-
500V or 460-600V—greater
range that covers more global
applications
True RMS voltage
measurement ensures
accurate sensing across more
applications
Retains fault indication &
continues to monitor voltages
even with lost phase
Full fault indication on top of
unit for easy troubleshooting
10A SPDT output contacts
PHASE LOSS & REVERSAL
PLP Series
The PLP Series Three-Phase Monitor Relays continuously monitor all voltages
to protect motors and equipment from expensive damage due to phase loss
and phase reversal. These products detect single phasing regardless of any
regenerative voltages.
Utilizing an advanced microprocessor-based design allows true RMS voltage
measurement with full wave monitoring. This provides a more accurate method
to measure the voltages, regardless of load type or wave shape, and results in
improved protection across more applications.
True RMS voltage measurement ensures accurate sensing in most generator
and other applications with non-sinusoidal wave forms, eliminating nuisance
tripping. Full wave monitoring provides a more accurate method to measure the
voltages, regardless of load type or wave shape, resulting in improved protection
across more applications.
Unlike similar three-phase monitor relays, the PLP Series will continue to function
even with a lost phase. They are the only line-powered units in their class to
retain fault indication and continuous monitoring of all voltages during a phase
loss, increasing the ease of troubleshooting and the level of protection.
The PLP Series is a true universal product, with two units that work on a
wide variety of line-line voltages without any adjustment to cover more global
applications. They utilize an industry-standard 8 pin octal socket.
Operation:
When the proper three-phase line voltage is applied to the unit and the phase
sequence (rotation) is correct, the relay is energized after the Restart Delay is
completed. A phase loss or phase reversal condition will de-energize the relay
after a delay. Re-energization is automatic upon correction of the fault condition.
A bi-color status LED indicates normal condition and also provides specic fault
indication to simplify troubleshooting.
with
appropriate
socket
PLP SERIES
LINE-LINE
PROTECTS VOLTAGE CATALOG WIRING/
AGAINST (50/60 Hz) NUMBER SOCKET
Phase Reversal 190-500V PLPU 8 Pin Octal
& Phase Loss 70169-D
460-600V PLP575
DIAGRAM 23
Phase-to-Phase (Line-to-Line).
Requires a 600V-rated socket when used on system voltages above 300V.
Sockets & Accessories available
6
Application Data
Dimensions
| |
three-phase monitor relays | plug-in
Voltage Requirements:
RANGE
(50/60HZ +5%)
190-500V AC 156V AC 550V AC PLPU
460-600V AC 390V AC 660V AC PLP575
Power Consumption: Less than 40VA.
Phase Loss:
Unit trips on loss of any Phase A, B or C, regardless of any
regenerative voltages.
Phase Reversal (Out-of-Sequence):
Unit trips if sequence (rotation) of the three phases is anything
other than A-B-C. It will not work on C-B-A.
Response Times:
Restart: 1 second xed
Drop-out Due to Fault:
Phase Loss and Reversal: 100ms xed
MIN
VOLTAGE
PHASE LOSS & REVERSAL
PLP Series
Output Contacts: SPDT 10 A @ 277V AC / 7A @ 30V DC;
MAX
VOLTAGE
CATALOG
NUMBER
1HP @ 250V AC, 1/2HP @ 125V AC,
C300 Pilot Duty
Life: Mechanical: 10,000,000 operations; Full Load: 100,000
operations
Temperature
Storage: -40o to 85oC (-40o to 185oF)
Mounting: Uses an 8 pin octal socket. Requires a 600V-rated
socket when used on system voltages greater than 300V such as
Macromatic Catalog Number 70169-D.
Status LED:
Reset:
Automatic upon correction of fault.
Approvals:
: Operating: -28o to 65oC (-18o to 149oF)
File #E109466
EN60947-5-1,
EN60947-1,
EN60255-1
with
appropriate
socket
File #E109466
All Dimensions in
Inches (Millimeters)
7
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