The product is a three-phase or three-phase+neutral line voltage monitoring relay that can detect whether the three-phase voltage is normal, and whether it has overvoltage, undervoltage, phase sequence error, phase loss and imbalance. The product can adjust the setpoints and delay time separately and has a LED indicator to show the status of the relay, fault and power supply switch.
This manual describes the true RMS 3‑phase monitoring relays (types DPC01 and PPC01). It details the product functions such as over/under‑voltage, phase‑sequence, phase‑loss and asymmetry monitoring, along with adjustable set‑points and delay functions.
The document provides electrical specifications, mounting options (DIN‑rail for DPC01, plug‑in module for PPC01), wiring diagrams, operation diagrams, and instructions for setting DIP‑switches, as well as mechanical dimensions and approvals.
| Output type | 2 x 8 A relay SPDT NE |
|---|---|
| Rated insulation voltage | 250 VAC |
| Contact rating (AC1) | 8 A @ 250 VAC |
| Mechanical life | > 30 × 10⁶ operations |
| Dielectric strength | > 2 kVAC rms |
| Input measuring range (M11) | 85 to 132 VAC |
Delay functions can be set from 0.1 s to 30 s using DIP switches 5 and 6 (DELAY 1, DELAY 2).