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To ensure accuracy, please note that images may be representative. Refer to the product data sheet for detailed specifications.
| Manufacturer | Macromatic |
| Manufacturer Product Number | PMD575 |
| Description | Phase Monitor Relay; 3-Phase; 575V AC; 2C DPDT; DIN Rail/Panel Mount |
| Datasheet | Download Datasheet |
The Macromatic PMD575 is a 52.5 mm DIN Rail phase monitor relay with 2C DPDT output and rated 10 A at 277 V AC, 10 A at 30 V DC, driven by a 575V AC input.
It watches all three phases for phase loss, phase reversal, phase unbalance, undervoltage and overvoltage, measuring true RMS with full-wave monitoring.
The undervoltage trip point is adjustable from 80 to 95% of the line voltage setting, and resets at +3% of the trip setting.
It drops out 100 ms fixed after a lost or reversed phase, 0.3...30 s adjustable after an undervoltage and re-energises 1...300 s adjustable after the fault clears.
It has DIN Rail/Panel Mount mounting and screw terminals.
| Category | |
| Manufacturer | Macromatic |
| Model | PMD |
| Sub-Family | DIN Rail |
| Monitoring Function | Phase Loss, Phase Reversal, Phase Unbalance, Undervoltage and Overvoltage |
| Number of Phases | 3-Phase |
| Sensing Method | True RMS with full-wave monitoring |
| Input Voltage | 575V AC |
| Input Operating Range | 460...600 V AC |
| Undervoltage Trip Adjustment | Adjustable from 80 to 95% of the line voltage setting; resets at +3% of the trip setting |
| Overvoltage Trip | Fixed at 110% of the line voltage setting; resets at 107% |
| Phase Unbalance Trip | Adjustable from 2 to 10% unbalance |
| Restart Delay (s) | 1...300 s adjustable |
| Trip Delay - Phase Loss and Reversal (ms) | 100 ms fixed |
| Trip Delay - Undervoltage (s) | 0.3...30 s adjustable |
| Trip Delay - Unbalance | 0.3...30 s adjustable, or 0.3...2 s on a severe unbalance |
| Reset Method | Automatic upon correction of the fault |
| Status Indicator | Bi-colour LED on top of the unit: solid green when all voltages are correct, red solid or flashing to indicate the specific fault |
| Contact Configuration | 2C DPDT |
| Output Rating | 10 A at 277 V AC, 10 A at 30 V DC |
| Single Phase Motor Rating | 1/2 HP at 120/240 V AC on the NO contact, 1/3 HP at 120/240 V AC on the NC contact |
| Pilot Duty | B300, R300 on the NO contact |
| Number of Poles | 2 |
| Mounting Type | DIN Rail/Panel Mount |
| Termination Style | Screw Terminal |
| Module Width (mm) | 52.5 |
| Rated Power | <40 VA |
| Operating Temperature (Storage) | -28...+65 °C (-40...+85 °C) |
| Mechanical Life | 10,000,000 |
| Electrical Life | 100,000 |
| Approvals | UL and cUL Listed, with the appropriate socket (E109466) |
| Weight (lb) | 0.1 |