The Pilz 890060 is an electronic true power monitoring relay from the S1WP series, designed by the German automation company Pilz. It is primarily used to monitor and safeguard electrical systems, specifically for the true power (effective power) of single-phase or three-phase supplies.
| Parameter | Specification |
|---|---|
| Model Name | S1WP 9A |
| Supply Voltage | 110 – 230 V AC/DC |
| Measuring Current | Up to 9 Amperes |
| Measuring Voltage | 0 – 415 V AC/DC |
| Frequency Range | 0 – 1000 Hz |
| Outputs | 1 changeover (C/O) contact for relay output 1 analogue output (switchable between 0–10 V DC or 4–20 mA) |
| Dimensions | 22.5 mm wide S-95 housing |
This device monitors for overload and underload conditions. It is particularly effective for frequency-controlled motors where standard current monitoring might be inaccurate due to varying frequencies.
This relay is widely used in automation technology, machine tool manufacturing, and industrial plant engineering to protect motors and electrical components from damage caused by power fluctuations or mechanical failures that manifest as electrical load changes.
Ideal for applications requiring precise power monitoring in variable frequency drive environments.