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Macromatic PMP120 Multi-Detection 120V Phase Monitor Relay

Macromatic PMP120 Phase Monitor Relay
Macromatic PMP120 Multi-Detection 120V Phase Monitor Relay

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Our Price: $102.00
MFG: Macromatic
Weight (lbs): 0.5

Delivery Time: 5-10 Business Days
Product Code: PMP120


The Macromatic PMP120 is a multi-detection phase monitor relay. This 8 Pin plug-in relay has an adjustable nominal voltage of 102-138V. It monitors against 5 different types of phase errors and has an output of 10A SPDT. The LED indicator changes color to show the status or specify a particular phase error. It is green when everything is normal or changes to red or amber when it detects an error. The diagram on top of the unit shows how the LED will display an error. The PMP120 uses an 8 Pin 70169-D octal socket and has a pilot duty rating. Note: Image is an approximation. Actual part may differ.

Monitors For
  • Phase Loss
  • Phase Reversal
  • Phase Unbalance
  • Undervoltage
  • Overvoltage


  • Relay Function- Multi-Detection
  • Nominal Voltage- 102-138V AC
  • Minimum Voltage- 77V AC
  • Maximum Voltage- 152V AC
  • Power Consumption- <40VA
  • Output- 10A SPDT
  • Phase Loss- Trips on Phase A, B or C loss
  • Phase Reversal- Trips if rotation is something other than A-B-C
  • Phase Unbalance- Adjustable from 2-10% unbalance
    Trips when one of the 3 lines diverges from the average by more than the set point
  • Undervoltage- Adjustable from 80-95% of nominal voltage
    Trips when the average of all 3 lines is less than the set point for longer than the trip delay
  • Overvoltage- 110% of nominal voltage
    Trips when the average of all 3 lines is greater than the set point for longer than the trip delay
  • Operating Temperature- -28 C to 65 C (-18 F to 149 F)
  • Storage Temperature- -40 C to 85 C (-40 F to 185 F)
  • Output Contacts- SPDT: 10A @ 277V AC/ 7A @ 30V DC, 1HP @ 250V AC, 1/2 HP @ 125V AC, C300 Pilot Duty
  • Life- Mechanical: 10,000,000 Operations
    Full Load: 100,000 Operations
  • Response Time- Power Up & Restart After Fault: 1 - 300 seconds
    Phase Loss & Reversal: 100ms
    Phase Unbalance: Normal 0.3-30 sec, Severe 0.3-2 sec.
    Under/Overvoltage: 0.3-30 sec
  • Dimensions- 2.4" H x 1.7" W x 3" D
  • Approvals- C UR US, CE, UL & CUL Listed (with socket)

Macromatic PMP Series Relay Installation Manual

PMP120 Macromatic Three Phase Monitor Relay

Additional Product Information

The PMP120 features "True RMS voltage measurement". Analog to digital sensing circuitry in True RMS voltage measurement allows the relay to be more accurate in monitoring phases and voltages. One unique feature for this series is that even if a phase is lost, it can still monitor all the voltages as well as indicate the fault. The PMP120 features different settings that can be chosen for the best phase protection for the job, including an automatic and manual reset. When the voltage and phase sequence is right, the relay becomes energized after the Restart Time Delay. When an error is detected, the relay is de-energized, and will re-energize once the error is fixed unless the manual reset is set up.

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