| BRAND | Ziehl |
| Product | S222300 / SPI1021 |
| Description | Voltage and frequency relay |
| Internal code | IMP443770 |
| Weight | 1 |
| Custom code | 85364900 |
| Technical specification | SPI 1021, NA box voltage/frequency Italy: CEI 0-21/Dubai: DEWA (DRRG) Voltage monitoring frequency monitoring vector jump, ROCOF Control voltage AC/DC 24-270 V |
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