Home > Relays > Phase Monitor Relays >

Macromatic PAP400 400V Plug-in Phase Monitor Relay

Macromatic PAP400
Macromatic PAP400 400V Plug-in Phase Monitor Relay

Alternative Views:

Our Price: $71.65
MFG: Macromatic
Weight (lbs): 0.3

Delivery Time: 5-10 Business Days
Product Code: PAP400


The Macromatic PAP400 is a three phase monitor relay. This 8 pin plug in relay has a nominal voltage of 400V. It monitors against phase reversal, phase loss and undervoltage with an output of 10A SPDT. The diagram on top of the relay depicts how the LED will indicate the current status. When everything is functioning correctly, the LED is green. When an error is detected, the LED glows or blinks red. The PAP400 uses an 8 pin 70169-D octal socket. Note: Image is an approximation. Actual part may differ.


  • Relay Function- Three Phase (Phase reversal/loss, undervoltage)
  • Line-Line Voltage- 400V AC
  • Minimum Voltage- 156 V
  • Maximum Voltage- 550 V
  • Power Consumption- < 40VA
  • Output- 10A SPDT
  • Phase Reversal- Trips if rotation is something other than A-B-C
  • Phase Loss- Trips if Phase A, B or C is lost
  • Undervoltage- Adjustable from 300-380V, Trips when the average of all 3 lines is less 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- 10A @ 277V AC / 7A @ 30V DC, 1 HP @ 250V AC, 1/2HP @ 125V AC, C300 Pilot Duty
  • Life- Mechanical: 10,000,000 Operations, Full Load: 100,000 Operations
  • Response Time- Restart: 1 sec, Phase Loss/Reversal: 100ms, Undervoltage: 4 sec
  • Dimensions- 2.4" H x 1.7" W x 3.5" D
  • Approvals- UL and CUL Recognized, CE, C-UL-US Listed (with Socket)

Macromatic PAP Series Relay Installation Manual

400V 8 Pin Plug In Phase Monitor Relay PAP400

Additional Product Information

Like the rest of the PAP series, the PAP400 makes use of "True RMS voltage measurement". The analog to digital sensing circuitry in True RMS voltage measurement is able to give more precise monitoring of phases and voltages. One of the advantages of the PAP400 is the ability to still monitor all the voltages while indicating the fault, even if a phase is lost. When used on system voltages above 300V, a 600V rated socket is needed. The unit stays energized as long as the phases are in the right order once the right voltage is introduced. Undervoltage is can be adjusted to a point between 75-95% of the nominal voltage. When any one of the three phase errors is detected, the relay will de-energize, remaining in that state until the problem is fixed. The relay is able to restart automatically without needing a manual reset

Related Products
Macromatic 70169-D 8 Pin Octal Socket
Our Price: $6.09

Macromatic 70169-D 8 Pin Octal Socket