Product Information
Macromatic - Three Phase Monitor Relay; 8-Pin; 190-500VAC; 10A SPDT
Description of Function
When the proper 3-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 five 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 specific fault indication to simplify troubleshooting (see right).
Product Overview
Protects against phase loss, phase reversal, phase unbalance, undervoltage, overvoltage & rapid cycling True RMS voltage measurement ensures accurate sensing across more applications Retains fault indication and continues monitoring all voltages even with a lost phase Ultimate three-phase protection with a variety of user-selectable and adjustable settings 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.
Configuration / Contact Rating:
10A @ 277V AC / 7A @ 30V DC; 1HP @ 250V AC, 1/2HP @ 125V AC, C300 Pilot Duty
Application Information:
Load (Burden): Less than 40 VA Response Times: Power Up/Restart After Fault: 1-300 Seconds Adjustable Drop-out Due to: Phase Loss & Reversal Phase Unbalance Undervoltage Overvoltage 100ms Fixed 0.3 – 30 Seconds Adjustable 0.3 – 30 Seconds Adjustable 0.3 – 30 Seconds Adjustable Minimum/Maximum Voltage: 156-550V (PMPU); 77-152V (PMP120): 345-660V (PMP575), all 50/60Hz. +5% Reset: As standard, the PMP 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 and 7. Upon application of line voltage, the PMP 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. Output Contacts: 10A @ 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: -28o to 65o C (-18o to 149o F)
Operation:
When the proper 3-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 five 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 specific fault indication to simplify troubleshooting. To see all the advantages of Macromatic’s new PMPU product vs. the competition, view our Phase Monitor Relay Competitive Comparison.
See datasheets for more details
macromatic - pmp series catalogue page.pdf
