The PMP-FA Series Phase Monitor Relays utilize a
microprocessor-based design to provide protection against phase loss, phase
reversal, phase unbalance, undervoltage and overvoltage, and are compatible
with most Wye or Delta systems with no connection to Neutral required. They
protect against unbalanced voltages or single phasing regardless of any
regenerative voltages.
The relay is energized when the phase sequence
and all voltages are correct. Any one of five fault conditions will de-energize
the relay. Re-energization is automatic upon correction of the fault condition.
A multi-color LED indicates normal condition and also provides specific fault
indication to simplify troubleshooting.
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These
products offer a universal voltage design that works on any three-phase system
voltage from 208-480V (208 or 240V only on the 11 pin DPDT version). The
undervoltage drop-out is fixed at 90% & the overvoltage drop-out is fixed
at 110% of operating voltage. The time delay drop-out on undervoltage is fixed
at 4 seconds. The percent phase unbalance is fixed at 6%. The time delay on
both power up and restart after a fault has been cleared is fixed at 2
seconds. |
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Features:
- Universal voltage range of 208-480V (208 or 240V on 11
pin) provides the flexibility to cover a variety of applications with one
unit
- Protects against phase loss, phase reversal, phase
unbalance, undervoltage and overvoltage
- Choose between 11 Pin DPDT, 12 Pin DPDT, 8 Pin SPDT &
8 Pin SPDT/SPNO output configurations
- Automatic Reset
- Multi-Color LED indicates normal condition and provides
specific fault indication to simplify troubleshooting
- Compact plug-in case utilizing industry-standard 8 or 11
pin octal or 12 pin square sockets
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Part Number |
Output Configuration |
Protects Against |
Nominal Voltage (50/60
Hz) Phase to Phase (Line to Line) |
Wiring Socket |
PMP208-FA11
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11-Pin DPDT |
Phase Loss, Phase Reversal, Phase Unbalance,
Undervoltage & Undervoltage |
208V |
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PMP240-FA11
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11-Pin DPDT |
Phase Loss, Phase Reversal, Phase Unbalance,
Undervoltage & Undervoltage |
240V |
PMPU-FA12 |
12-Pin DPDT |
Phase Loss, Phase Reversal, Phase Unbalance,
Undervoltage & Undervoltage |
208-480V |
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PMPU-FA8 |
8-Pin SPDT |
Phase Loss, Phase Reversal, Phase Unbalance,
Undervoltage & Undervoltage |
208-480V |
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PMPU-FA8X |
8-Pin SPDT / SPNO |
Phase Loss, Phase Reversal, Phase Unbalance,
Undervoltage & Undervoltage |
208-480V |
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Phase Loss: |
Unit trips on loss of any Phase A, B or C. |
Phase Reversal: |
Unit trips if rotation (sequence) of the three phases is
anything other than A-B-C. |
Undervoltage: |
Fixed at 90% of nominal voltage. Unit trips when the average
of all three lines is less than the set point for a period longer than the
fixed 4 second delay time. |
Overvoltage: |
Fixed at 110% of nominal voltage. Unit trips when the average
of all three lines is greater than the fixed set point for a period longer than
the time delay drop-out. |
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 longer than the fixed 2 second time delay. |
Output Contacts: |
10A @ 240V AC/30V DC, 1/2HP @ 120/240V AC (N.O.), 1/3HP @
120/240V AC (N.C.) B300 & R300; AC15 & DC13 |
Life: |
Mechanical: 10,000,000 operations, Full Load: 100,000
operations |
Response Times: |
Power Up & Restart After Fault: Fixed at 2 seconds
Phase Loss & Reversal 100ms fixed Phase Unbalance 2 seconds fixed
Undervoltage Fixed at 4 seconds Overvoltage Fixed Time Based on Inverse
Time Curve |
Hysteresis: |
2-3% |
Load (Burden): |
Less than 3VA |
Temperature: |
-28° to 65°C (-18° to 149°F) |
Mounting: |
Use the appropriate socket as shown in the Product Selection
Table on Page 12. Requires a 600V-rated socket when used on system voltages
greater than 300V. |
Reset: |
Reset is automatic upon correction of fault. |
LED Status |
Inicator |
Green Steady |
Normal / Relay ON |
Green Flashing |
Power Up / Restart Delay |
Red Steady |
Unbalance |
Red Flashing |
Undervoltage / Overvoltage |
Amber Steady |
Reversal |
Amber Flashing |
Loss |
Green / Red Alternating |
Undervoltage / Overvoltage Trip Pending |
Red / Amber Alternating |
Nominal Voltage Set Error |