| Crouzet Part Number | 84873029 (3 Phase Voltage Monitoring Relay With SPDT Contacts) |
| Function | Total Phase Failure, Phase Sequence |
| Nominal Voltage | 3 x 208 → 3 x 480 V ∿ |
| Digital Outputs | 1 x C/O Relays, 250VAC/DC @ 5 Amp |
| Min Breaking Current | 10mA/5VDC |
| Timing Range | 0.3 → 30s (0, +10%) |
| Delay on Pickup | 500ms |
| Alarm Delay on Time (max) | 200ms |
| Reset Time | 1500ms |
| Fixed Hysteresis | 2% of Un |
| Maximum Measurement Cycle Time | 150ms/True RMS Measurement |
| Measurement Accuracy | 1% |
| Supply Voltage Range | Same as Measurement 3 x 208 → 3 x 480 V ∿ |
| Termination Style | Screw |
| Weight | 170g |
| Certification | CE, UL, CSA, GL, ROHS |
| Factory Pack Qty | 1 |
| Over Voltage Category | 3 in accordance with IEC/EN 60664-1 |
| Pollution Degree | 2 in accordance with IEC/EN 61131-2 |
| Protection rating | IP40 (Front), IP20 (Rear) |
| Mechanical Resistance | Immunity to vibrations IEC/EN 60068-2-6, test Fc Immunity to shock IEC/EN 60068-2-27, test Ea |
| Resistance to HF Interference | Immunity to radiated electrostatic fields IEC/EN 61000-4-3 Immunity to fast transients (burst immunity) IEC/EN 61000-4-4, level 3 Immunity to shock waves IEC/EN 61000-4-5 Radio frequency in common mode IEC/EN 61000-4-6, level 3 Voltage dips and breaks (AC) IEC/EN 61000-4-11 Immunity to damped oscillatory waves IEC/EN 61000-4-12 |
| Conducted and radiated emissions | Class B (*) in accordance with EN 55022, EN 55011 (CISPR22, CISPR11) group 1 (*) Except configuration (88 970 1.1 or 88 970 1.2) + (88 970 250 or 88 970 270) + 88 970 241 class A (class B in a metal enclosure) |
| Operating Temperature | -20 →+70 °C except CB and XB versions in VDC : -30 →+70 °C (+40 °C in a non-ventilated enclosure) in accordance with IEC/EN 60068-2-1 and IEC/EN 60068-22 |
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