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Macromatic
Macromatic PMP Series - Phase Loss, Reversal, Unbalance & Under/Over Voltage Monitor Relays

Macromatic PMP Series - Phase Loss, Reversal, Unbalance & Under/Over Voltage Monitor Relays (Plug-In)
   
The PMP Series Phase Monitor Relays utilize a microprocessor-based design to provide protection against phase loss, phase reversal, phase unbalance, undervoltage and overvoltage. The PMPU is a universal voltage product that works on any three-phase system voltage from 208-480V (a separate 120V version is available). These devices are designed to be compatible with most Wye or Delta systems with no connection to Neutral required. PMP Series products 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. As standard, reenergization is automatic upon correction of the fault condition. Manual reset is available if a momentary N.C. switch is wired to the appropriate terminals. A multi-color LED indicates normal condition and also provides specific fault indication to simplify troubleshooting.
Macromatic PMP Series
Approvals Approvals Approvals
The relay is energized when the phase sequence and all voltages are correct. Any one of five fault conditions will de-energize the relay. As standard, reenergization is automatic upon correction of the fault condition. Manual reset is available if a momentary N.C. switch is wired to the appropriate terminals. A multi-color LED indicates normal condition and also provides specific fault indication to simplify troubleshooting.
   
Features:
  • Universal voltage range of 208- 480V on PMPU provides the flexibility to cover a variety of applications with one unit
  • Protects against phase loss, phase reversal, phase unbalance, undervoltage and overvoltage
  • Variety of user-selectable and adjustable settings for the ultimate in three-phase protection
  • Automatic & Manual Reset in Same Unit
  • Multi-Color LED indicates normal condition and provides specific fault indication to simplify troubleshooting
  • Compact plug-in case utilizing industry-standard 8 pin octal socket
  • 10A SPDT output contacts
 
Click here for specifications and dimensions in .pdf format PDF
Part Number Protects Against Nominal Voltage (50/60 Hz)
Phase to Phase (Line to Line)
Wiring Socket
Add part number PMP120 to your Quote. PMP120 Phase Loss, Phase Reversal, Phase Unbalance, Undervoltage & Undervoltage 120V Diagram 104
Add part number PMPU to your Quote. PMPU Phase Loss, Phase Reversal, Phase Unbalance, Undervoltage & Undervoltage 208-480V
*Requires a 600V-rated socket when used on system voltages above 300V.
 
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: Adjustable from 80-95% of nominal voltage. Unit trips when the average of all three lines is less than the adjusted set point for a period longer than the adjustable time delay drop-out.
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: Adjustable from 2 - 10% 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. There is also a ..Disable.. setting adjustment that will turn off the Phase Unbalance Protection if nuisance tripping is a problem.
Output Contacts: SPDT: 10A @ 240V AC/30V DC, 1/2HP @ 240V AC
Life: Mechanical: 10,000,000 operations, Full Load: 100,000 operations
Response Times: Power Up & Restart After Fault: 1 - 300 seconds adjustable
Phase Loss & Reversal 100ms fixed
Phase Unbalance 2 seconds fixed
Undervoltage 0.1 - 20 seconds adjustable
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: Uses an 8 pin octal socket. Requires a 600V-rated socket when used on system voltages greater than 300V (Macromatic Product Number 70169-D
Reset: As standard, reset is automatic upon correction of fault. When a momentary-contact N.C. switch is wired across the Manual Reset terminals (6 & 7), the unit switches to manual reset mode and remote manual reset is available.
 
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 (Applies to 208-480V units only) Nominal Voltage Set Error