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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 | PBDU |
| Description | Phase Monitor Relay; 3-Phase; (208...480)V AC; 1C SPDT; 5 A at 250 V AC |
| Datasheet | Download Datasheet |
The Macromatic PBDU is a 17.5 mm Slim DIN Rail phase monitor relay with 1C SPDT output and rated 5 A at 250 V AC, driven by a (208...480)V AC input.
It watches all three phases for phase loss, phase reversal and phase unbalance, measuring true RMS with full-wave monitoring.
It drops out 100 ms fixed after a lost or reversed phase.
It has DIN Rail/Panel Mount mounting and screw terminals.
| Category | |
| Manufacturer | Macromatic |
| Model | PBDU |
| Sub-Family | Slim DIN Rail |
| Monitoring Function | Phase Loss, Phase Reversal and Phase Unbalance |
| Number of Phases | 3-Phase |
| Sensing Method | True RMS with full-wave monitoring |
| Input Voltage | (208...480)V AC |
| Input Operating Range | 187...528 V AC |
| Phase Unbalance Trip | Adjustable from 5 to 25% unbalance, or switched off |
| Trip Delay - Phase Loss and Reversal (ms) | 100 ms fixed |
| Reset Method | Automatic upon correction of the fault |
| Status Indicator | LED indication of the specific fault |
| Contact Configuration | 1C SPDT |
| Output Rating | 5 A at 250 V AC |
| Number of Poles | 1 |
| Mounting Type | DIN Rail/Panel Mount |
| Termination Style | Screw Terminal |
| Module Width (mm) | 17.5 |
| Protection Category | IP 20 |
| Rated Power | 10 VA (1 W) at 400 V, 16 VA (1.5 W) at 480 V |
| Operating Temperature (Storage) | -25...+55 °C (-25...+75 °C) |
| Mechanical Life | 10,000,000 |
| Electrical Life | 100,000 |
| Approvals | UL and cUL Listed, with the appropriate socket (E109466) |
| Weight (lb) | 0.25 |