Macromatic PMPU-FA8 Series Data Sheet
PHASE LOSS, PHASE REVERSAL, PHASE UNBALANCE,
three-phase monitor relays | plug-in
Protects against phase loss,
phase reversal, phase unbalance,
undervoltage, overvoltage & rapid
cycling
Universal voltage range of 190-
500V—greater range that covers
more global applications
True RMS voltage measurement
ensures accurate sensing across
more applications
Retains fault indication and
continues monitoring all voltages
even with a lost phase
Full fault indication on top of unit for
easy troubleshooting
Manual reset option works with
external switch to reset the relay
from outside the enclosure
Compact plug-in case utilizing
industry-standard 8 pin octal socket
10A SPDT output contacts
Pilot Duty Rating
UNDERVOLTAGE & OVERVOLTAGE
PMPU-FA8 Series
The PMPU-FA8 Three-Phase Monitor Relays continuously monitor all voltages
of a three-phase system. They are used to protect motors and equipment
from expensive damage due to phase loss, phase reversal, phase unbalance,
undervoltage and overvoltage faults as well as rapid cycling. These products
detect single phasing and unbalanced voltages regardless of regenerative
voltages.
The PMPU-FA8 Series incorporate a microprocessor-based design capable
of advanced signal processing including True RMS voltage measurement.
Innovative analog-to-digital sensing circuitry allows for true full-wave monitoring
of all three phases, delivering the highest level of protection possible.
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 PMP 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 PMPU-FA8 is a true universal voltage product that
works on any three-phase line-line voltage of 190-500V.
The Voltage Line-Line knob on the PMPU-FA8 has two
ranges: a 190-250V low voltage scale and a 380-500V
high voltage scale. The unit auto senses the threephase line-line voltage when applied and automatically
selects the appropriate range.
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. Any one of fi ve fault conditions will
de-energize the relay after a delay. As standard, re-energization is automatic
upon correction of the fault condition. Manual reset is available if an external
momentary N.C. switch is connected to pins 6 and 7. A bi-color status LED
indicates normal condition and also provides specifi c fault indication to simplify
troubleshooting.
with
appropriate
socket
PMPU-FA8 Series
LINE-LINE
PROTECTS VOLTAGE PRODUCT
AGAINST 50/60 Hz NUMBER WIRING/SOCKET
Phase Loss, 190-500V PMPU-FA8 8 Pin Octal
Phase Reversal, 70169-D
Phase Unbalance,
Undervoltage
& Overvoltage
DIAGRAM 104
Phase-to-Phase (Line-to-Line).
Requires a 600V-rated socket when used on system voltages above 300V.
Sockets & Accessories available
PHASE LOSS, PHASE REVERSAL, PHASE UNBALANCE,
UNDERVOLTAGE & OVERVOLTAGE
PMPU-FA8 Series
Application Data
Voltage Requirements:
RANGE
(50/60Hz +5%)
190-500V AC
(see below)
Three-Phase Line-Line Voltage:
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.
Undervoltage: Fixed at 90% of the line voltage setting. Unit trips
when the average of all three lines is less than the adjusted set
point for a period longer than the fi xed 4 second trip delay. It will
reset at +3% of the Undervoltage trip setting.
Overvoltage: Fixed at 110% of the line voltage setting. Unit trips
when the average of all three lines is greater than the fi xed set
point for a period longer than the fi xed 4 second trip delay. It will
reset at 107% of the line voltage setting.
Phase Unbalance: Fixed at 6% unbalance. Unit trips when any
one of the three lines deviates from the average of all three lines
by more than the adjusted set point for a period longer than the
fi xed 4 second trip delay.
Dimensions
MIN
VOLTAGE
156V AC 550V AC PMPU-FA8
The Voltage Line-Line knob on the PMPU-FA8 has two ranges (left): a 190-250V
low voltage scale and a 380-500V high
voltage scale. The unit auto senses the
3-phase line-line voltage when applied and
automatically selects the appropriate range.
MAX
VOLTAGE
PRODUCT
NUMBER
Response Times:
Restart: 2 seconds fi xed
Drop-out Due to Fault:
Phase Loss
Undervoltage
Unbalance:
Normal: 4 seconds fi xed
Severe (>12%): 0.25 seconds fi xed
Output Contacts: 10 A @ 277V AC / 7A @ 30V DC;
1HP @ 250V AC, 1/2HP @ 125V AC,
C300 Pilot Duty
Life: Mechanical: 10,000,000 operations; Full Load: 100,000 operations
Temperature: Operating: -28
Storage: -40
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: As standard, the PMPU-FA Series relays are in the Automatic
Reset mode. However, they can be set in the Manual Reset mode
by connecting an external N.C. switch across terminals 6
Upon application of line voltage, the PMPU-FA8 Series will go into
Manual Reset mode if it recognizes a closure across terminals 6 and
7. After a fault clears, the relay will not reset until the N.C. switch is opened.
Approvals:
and
Reversal: 100ms fi xed
and
Overvoltage: 4 seconds fi xed
o
to 65oC (-18o to 149oF)
o
to 85oC (-40o to 185oF)
File #E109466
with appropriate
socket File #E109466
and
7.
Low Voltage & EMC Directives
EN60947-1, EN60947-5-1
three-phase monitor relays | plug-in
All Dimensions in
Inches (Millimeters)
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